Platinum Building Chemicals xml-google-shopping-feed-all https://www.platinumchemicals.co.uk Wykamol Group Wykamol Waterguard T Piece https://www.platinumchemicals.co.uk/products/wykamol-waterguard-t-piece?variant=33355129552995 The Wykamol Waterguard T-Piece has been designed to connect Wykamol Waterguard Channel and Wykamol Floor Drain Channel sections together. This can be used in cross floor drainage or as a connector to take water into a sump chamber via a floor drain section.There are no lips on the Waterguard T-Piece, therefore inhibiting lime build up.The T-Piece will push-fit into the Waterguard Channel or Floor Drain Channel. No additional Connector Piece is required to fit. InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766409818211 shopify_GB_4766409818211_33355129552995 new 15.48 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0980_grande.jpg?v=1609268458 Wykamol Group WYWG41T Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard Swept Corner Piece https://www.platinumchemicals.co.uk/products/wykamol-waterguard-corner-piece?variant=33354682794083 The Wykamol Waterguard Swept Corner Piece allows a unique push fit to the Wykamol channels to create a 90° corner section which allows for easier cleaning and jetting of the system.Manufactured with no sharp edges, it allows for a seamless flow of water and also helps inhibit lime build up within the system itself.The Swept Corner Piece will push-fit into the Waterguard Channel or Floor Drain Channel. No additional Connector Piece is required to fit. InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766184505443 shopify_GB_4766184505443_33354682794083 new 15.06 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0979_grande.jpg?v=1609248424 Wykamol Group WYWG41CP Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard Flexible Jetting Eye https://www.platinumchemicals.co.uk/products/wykamol-waterguard-flexible-jetting-eye?variant=33355244077155 The Wykamol Waterguard Flexible Jetting Eye has been designed to allow cleaning and inspection of the Wykamol Waterguard Channel or Wykamol Floor Drain Channel Systems.The unique flexible upstand jetting point can be easily bent to allow the channel to be used in a wall port system. It also has the benefit of allowing slabs to be laid whilst still being easily accessible afterwards.The Flexible Jetting Eye requires additional Connector Pieces at each end to fit onto the the Waterguard Channel or Floor Drain Channel.InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766477090915 shopify_GB_4766477090915_33355244077155 new 28.38 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WykamolFlexibleJettingEye_grande.jpg?v=1609272033 Wykamol Group WYWG41JEF Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard Extended Jetting Eye (With 50mm Waste Outlet) https://www.platinumchemicals.co.uk/products/wykamol-extended-jetting-eye?variant=33355215732835 The Wykamol Waterguard Extended Jetting Eye has been designed to allow cleaning and inspection of the Wykamol Waterguard Channel or Wykamol Floor Drain Channel Systems.Manufactured with a unique 50mm Outlet, this allows for pipework (not supplied) to be added to the jetting eye to access the channel system for cleaning and inspecting. It's recommended one Jetting Eye is installed every 10 to 12 metres of channels.The Extended Jetting Eye will push-fit into the Waterguard Channel or Floor Drain Channel. No additional Connector Piece is required to fit.InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766467031139 shopify_GB_4766467031139_33355215732835 new 16.74 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0975_grande.jpg?v=1609271291 Wykamol Group WYWG41JEO Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard End Cap https://www.platinumchemicals.co.uk/products/wykamol-waterguard-end-cap?variant=33355178573923 The Wykamol Waterguard End Cap is designed to push-fit onto the Wykamol Waterguard Channel or the Wykamol Floor Drain Channel sections to 'cap-off' the ends of the Channel System.InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766448287843 shopify_GB_4766448287843_33355178573923 new 4.98 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0977_grande.jpg?v=1609270103 Wykamol Group WYWG41ST Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard Drainage Channel https://www.platinumchemicals.co.uk/products/wykamol-waterguard-drainage-channel?variant=33354514890851 Wykamol Waterguard Channel is a PVC drainage conduit designed for the control of water ingress in below ground situations. Wykamol Waterguard Channel is fitted around the perimeter (only) of the floor at the vulnerable wall / floor junction.Supplied in 2 Metre Lengths.Our full range of Wykamol Waterguard Channel Products can be found here.DescriptionWykamol Waterguard Drainage ChannelWykamol Waterguard Perimeter Drainage Channel is a PVC Drainage conduit specifically designed for the control of water ingress in below ground situations.It is installed at the vulnerable wall / floor junction to the soil retaining walls or, around the perimeter of the floor slab to be used in most waterproofing situations, and is particularly suited for use in conjunction with Wykamol Cavity Drain Membrane Systems.Water entering the building through the walls is controlled behind the Wykamol Membrane and diverted to the perimeter channel at the base of the wall. The water enters the perimeter channel through predrilled drainage holes and must then be diverted to a suitable drainage point, either natural or mechanical, the perimeter drainage is set dead level and not to falls.Benefits:Quick and easy to installPre-drilled drainage holes.Can detail around corners using the Waterguard Ancillary Products.Tough and durable.Part of a complete Type C cavity drain membrane system for waterproofing below-ground structures in line with BS8102:2009InstallationApplication Method:Form a trough 130mm deep x 130mm wide in the floor at the wall/floor junction.Apply the Wykamol Cavity Drain Membrane to the wall and finish 100mm minimum below existing floor level.Lay a shallow bed of 20mm stone into the trough. Place the Wykamol Waterguard Drainage Channel onto the stone with the upstand to the top and flat against the waterproofing / cavity drain membrane to the wall.Lengths of Waterguard Drainage Channel are butt jointed on straight runs using the Waterguard Jointing Sections.The Waterguard Swept Corner Piece is used to join lengths of Waterguard Channel conduit at corners.The Waterguard T-Piece can be used for 'teeing off' of the channel to dissect the floor or to discharge to a centrally located sump. Wykamol Floor Drain Channel should be used in conjunction when channelling across the floor.Fit the Waterguard 50mm Channel Outlet into the Waterguard Channel at the appropriate location. The Waterguard 50mm Channel Outlet is used to take water from the Waterguard Channel or Floor Drain Systems into a sump chamber or through a wall on a sloping site to a gully.Use Waterguard End Caps to 'cap-off' any ends of the Waterguard Channel.Infill the remaining gap between the Waterguard Channel and the side of the trough with 20mm stone and finish flush with the flat surface of the Waterguard Channel.When installing a membrane over the floor, make good the remaining area with 20mm stone. Lay the membrane over the floor area and seal to the wall membrane using Wykamol Corner Strip / Overtape.When the Cavity Drain Membrane is not going to be installed over the floor, make good the remaining area with approximately 50mm screed.Maintenance:It is recommended that the Waterguard Channel be jet washed via the Flexible Jetting Eye or Extended Jetting Eye, which should be incorporated in the channel system, at least once every six months.This should be carried out by the installing contractor (under a maintenance contract) or by the property owner. During this cleaning process the pumps (if installed) should also be run with water out of the sump chamber to ensure they are fully operational and that the sump chamber be cleaned of any sludge / silt that may have accumulated.In addition to this, the high water level battery alarm box and alarm sensor should also checked for working order.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4738537160803 shopify_GB_4738537160803_33354514890851 new 20.82 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/PlatonAquaChannel_grande.jpg?v=1609241056 Wykamol Group WYWG41 Basement Drainage Systems 2 Metre Length US 2.0 kg Wykamol Group Wykamol Waterguard Connector Piece https://www.platinumchemicals.co.uk/products/wykamol-waterguard-connector-piece?variant=33354680893539 The Wykamol Waterguard Connector Piece is a push fit joint section that allows all channel sections to connect together to form a seamless passage for water to flow and also helps inhibit lime build up. This also helps reduce movement at jointing sections.InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766184013923 shopify_GB_4766184013923_33354680893539 new 6.96 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0976_grande.jpg?v=1609247464 Wykamol Group WYWG41C Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Waterguard 50mm Channel End Outlet https://www.platinumchemicals.co.uk/products/wykamol-waterguard-50mm-channel-end-outlet?variant=33355152752739 The Wykamol Waterguard 50mm Channel End Outlet is a multi purpose outlet designed to push-fit onto the Wykamol Waterguard Channel or the Wykamol Floor Drain Channel sections to take water from the system into a Sump Chamber or through a wall on a sloping site to a gully.The 50mm Channel Outlet will push-fit onto the Waterguard Channel or Floor Drain Channel. No additional Connector Piece is required to fit. InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766427316323 shopify_GB_4766427316323_33355152752739 new 8.76 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0982_grande.jpg?v=1609269141 Wykamol Group WYWG41CO Basement Drainage Systems 0.1 kg Wykamol Group Wykamol Water Stop Fast Set Plugging Mortar https://www.platinumchemicals.co.uk/products/water-stop-mortar-plug?variant=7653634113566 Water Stop is a fast setting, expanding water stop plugging and repair mortar which is used the rapid patching and plugging of active water leaks and seepage in concrete and masonry.Supplied in 5Kg Buckets (2 x 2.5Kg Packs in each Bucket).DescriptionWater Stop - Fast Set Plugging MortarWater Stop is a fast setting, expanding water stop plugging and repair mortar.When mixed with clean water and applied correctly it is formulated for the rapid patching and plugging of active water leaks and seepage in concrete and masonry.Water Stop is designed to expand as it sets to ensure a permanent water tight seal is achieved and in a cured formed displays similar properties to concrete.Water Stop is use to stop active water leaks or seepage under pressure through holes, joints and cracks in concrete or masonry walls, swimming pools, water storage facilities, tunnels, fountains, cisterns, water channels, ponds, pipes, basements, foundations and retaining walls.Water Stop is also ideal for used for rapid anchoring of bolts, conduits, pipes, sanitary equipment, etc.Product Benefits:Instantly Stops Leaks in Concrete & MasonryProvides a Permanent Watertight SealFast Setting and Rapid CuringResists Positive & Negative Water PressureSuitable for use Above & Below GroundSuitable for Internal and External useSafe to use in contact with Potable WaterApplicationSubstrate Preparation:All areas to be repaired and plugged should be free from mildew, dirt, dust and any loose material.Clean the hole, crack or joint thoroughly by wire brushing, chiselling or scraping loose materials until a clean, sound substrate remains.Areas to be patched should be cut back and given a good mechanical key. Feather edges are not allowed.For dry repair applications, wet the repair area with water leaving it surface saturated dry (SSD) during the repair.To seal leaks and cracks openings must be chased out to approx 20 mm square. The edges must be square or under cut, avoiding V-shaped cuts. All loose material and debris should be removed.Mixing:Due to the fast setting nature of Water Stop, it is important to organise the work space before mixing commences. Ensure the person undertaking the repair is situated close to the repair area and required equipment to carry out the repair is present.To achieve a 'stiff' mortar, the recommended water addition is 200ml - 220ml of clean water per 1Kg of Water Stop.For best results the temperature of the mixing water should be between 15°C and 25°C.Wearing suitable gloves, mixing is ideally done by hand.Add the recommended water addition into the bucket.Add the powder to the water and mix quickly and thoroughly.Roll the mixture between your hands until the material starts become warm and a pliable, putty like consistency is developed.Immediately use Water Stop.Important: Mix only enough material for immediate use as Water Stop sets in 2 - 4 minutes and cannot be reworked once it has set.No priming is required but for dry repair applications, make sure the surface is Surface Saturated Dry (SSD).Application Method:To stop surface leaks or seepage not under pressure:Starting at the top of the hole or crack, work your way down. Trowel apply or hand kneed the mixed mortar firmly into place, ensuring maximum contact with the substrate before the material sets.Remove any excess material to form a uniform surface.To stop leaks under pressure or under water:Starting at the top of the hole or crack, work your way down. Trowel apply or hand kneed the mixed mortar firmly into place, ensuring maximum contact with the substrate before the material sets.Maintain constant pressure on the applied material until final set has been achieved.Remove any excess material to form a uniform surface.Conditions & Limitations:Water Stop can be used in cold conditions down to 1°C.It is advised to use warm water, 20°C to accelerate strength development.The material should not be applied when substrate and / or ambient air temperature is less than 1°C.Set and cure times will be increased at low temperatures.When using Water Stop in temperatures above 35°C, the material should be stored in the shade and it is advised to use cooler water, around 20°C.Set and cure times will be reduced in hot temperatures.Curing:Final setting time is less than 5 minutes. Once the placed Water Stop has stiffened sufficiently, dampen with clean water and maintain in a damp condition for a minimum of 15 minutes.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552125497374 shopify_GB_552125497374_7653634113566 new 18.30 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WATERSTOP5KGNEW_grande.jpg?v=1605885010 5060207860406 Wykamol Group WYBW05 Tanking Slurry 5Kg Bucket US 5.0 kg Wykamol Group Wykamol Ultimate Plaster Membrane Plugs (With Seals) https://www.platinumchemicals.co.uk/products/wykamol-plaster-membrane-plugs?variant=32836703617123 With its unique rubber sealing washer, Wykamol Ultimate Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure our range of Wykamol Damp Proof Membranes to the wall / substrate. The unique rubber seal beds into membranes far tighter than other sealing washers creating a much more effective seal than ever before.If a seal is not required for application then use Wykamol Plaster Plugs (Without Seals).An 8mm SDS Drill Bit is normally required for fixing Wykamol Ultimate Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates.Supplied in (W) 8mm x (L) 65mm size only. Available in Pack Sizes of 100 or 200 Fixings.DescriptionWykamol Ultimate Plaster Membrane PlugsWykamol Ultimate Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure Wykamol Damp Proof Membranes to the wall / substrate. These fixings are also compatible with any other brand of Damp Proof Membrane available in our online store.Wykamol Ultimate Plaster Membrane Plugs have a unique rubber seal which is smaller than the norm and beds into membranes far tighter to create a much more effective seal than ever before.If a seal is not required for application then use Wykamol Plaster Plugs (Without Seals).An 8mm SDS Drill Bit is normally required for fixing Wykamol Ultimate Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates. shopify_GB_4662549053539 shopify_GB_4662549053539_32836703617123 new 30.90 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0931_grande.jpg?v=1602245138 Wykamol Group WYCMPPSW200 Damp Proof Membrane Ancillaries 2.5 kg Wykamol Group Wykamol Ultimate Plaster Membrane Plugs (With Seals) https://www.platinumchemicals.co.uk/products/wykamol-plaster-membrane-plugs?variant=32836703649891 With its unique rubber sealing washer, Wykamol Ultimate Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure our range of Wykamol Damp Proof Membranes to the wall / substrate. The unique rubber seal beds into membranes far tighter than other sealing washers creating a much more effective seal than ever before.If a seal is not required for application then use Wykamol Plaster Plugs (Without Seals).An 8mm SDS Drill Bit is normally required for fixing Wykamol Ultimate Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates.Supplied in (W) 8mm x (L) 65mm size only. Available in Pack Sizes of 100 or 200 Fixings.DescriptionWykamol Ultimate Plaster Membrane PlugsWykamol Ultimate Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure Wykamol Damp Proof Membranes to the wall / substrate. These fixings are also compatible with any other brand of Damp Proof Membrane available in our online store.Wykamol Ultimate Plaster Membrane Plugs have a unique rubber seal which is smaller than the norm and beds into membranes far tighter to create a much more effective seal than ever before.If a seal is not required for application then use Wykamol Plaster Plugs (Without Seals).An 8mm SDS Drill Bit is normally required for fixing Wykamol Ultimate Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates. shopify_GB_4662549053539 shopify_GB_4662549053539_32836703649891 new 18.30 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0931_grande.jpg?v=1602245138 Wykamol Group WYCMPPSW100 Damp Proof Membrane Ancillaries 2.5 kg Wykamol Group Wykamol ThermalDry Anti Condensation Paint https://www.platinumchemicals.co.uk/products/wykamol-thermaldry-anti-condensation-paint?variant=30877241835619 Wykamol ThermalDry Anti Condensation Paint is a Thermally Insulating Water-Based Coating which incorporates hollow glass beads that act like a miniature ‘Thermos Flask’, reflecting thermal energy away from the walls, preventing the water from condensing for increased condensation control.This Anti Condensation Paint is supplied in 2.5 Litre and 5 Litre Buckets, available in White colour only. Platinum Building Chemicals supply a wide variety of condensation control and mould control products to aid with mould eradication and treatment.DescriptionWykamol ThermalDry Anti Condensation PaintWykamol ThermalDry Anti Condensation Paint is a styrene acrylic co-polymer dispersion water based coating which is thermally insulating and water repelling.Wykamol ThermalDry Anti Condensation Paint incorporates Micro-technology in the form of hollow glass beads, with a size of 50um and a crush strength of 500 psi.The micro, hollow glass beads act like a miniature ‘Thermos Flask’, reflecting thermal energy away from the walls, preventing the water from condensing.The prevention of moisture forming on walls therefore inhibits mould growth.This Anti Condensation Paint also increases the wall temperature, thus reducing the ‘dew point’ or the temperature at which condensation occurs.Product Uses:BathroomsUtility roomsKitchensLintels over Windows and Doors which produce cold spotsCold Walls and CeilingsIndustrial ApplicationsProduct Advantages:Coating is Waterproof When Dry and Walls are Warm to the TouchPrevents Formation of Black Mould and Other Harmful FungiSuitable for Any Interior Wall - Particularly Exterior Facing Walls, Bathrooms and KitchensTakes Up to 60% Longer for Condensation to Occur on WallsIncrease the Life of Your Chosen Paint or Wallpaper FinishCan Be Over Painted or Wall Papered Over With Any Finish, Without Reducing Its EffectivenessAntibacterial PropertiesWarm Air is Reflected Back Into the Room, Rather Than Being Absorbed by Cold Walls, Increasing Its Overall TemperatureApplicationSubstrate Preparation:Ensure surface is free from mould and fungus using MCS1 Mould Clear Solution.Remove any loose paint or wallpaper, grease and oil stains. Any cracks must be filled using a crack filler and left to set before application can commence.For coating over plastic or metal, it is advisable to complete a test on the substrate first.Mixing:Upon opening the tin, gently stir the medium in order to ensure glass bubbles are evenly spread throughout.DO NOT USE mechanical stirrer as this could damage the glass beads.Application Method:Wykamol ThermalDry is designed for easy application with either a brush or roller.Allow 2-4 hours between application of coats. A two-coat application is necessary to achieve maximum effectiveness.Do not apply Wykamol ThermalDry below 5°C or above 30°C.Curing:Allow for 2-4 hours between application of second coat of Wykamol ThermalDry and before applying chosen finish.Coverage:Approximately 4m² - 5m² per Litre, based on a two-coat application.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4285098295395 shopify_GB_4285098295395_30877241835619 new 34.68 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/THERMALDRY_2.5L_grande.jpg?v=1573830832 5060207863346 Wykamol Group WYTHDRYW25 Anti-Condensation Paint 2.5 Litres US 2.5 kg 0.00 GBP Wykamol Group Wykamol ThermalDry Anti Condensation Paint https://www.platinumchemicals.co.uk/products/wykamol-thermaldry-anti-condensation-paint?variant=30877241868387 Wykamol ThermalDry Anti Condensation Paint is a Thermally Insulating Water-Based Coating which incorporates hollow glass beads that act like a miniature ‘Thermos Flask’, reflecting thermal energy away from the walls, preventing the water from condensing for increased condensation control.This Anti Condensation Paint is supplied in 2.5 Litre and 5 Litre Buckets, available in White colour only. Platinum Building Chemicals supply a wide variety of condensation control and mould control products to aid with mould eradication and treatment.DescriptionWykamol ThermalDry Anti Condensation PaintWykamol ThermalDry Anti Condensation Paint is a styrene acrylic co-polymer dispersion water based coating which is thermally insulating and water repelling.Wykamol ThermalDry Anti Condensation Paint incorporates Micro-technology in the form of hollow glass beads, with a size of 50um and a crush strength of 500 psi.The micro, hollow glass beads act like a miniature ‘Thermos Flask’, reflecting thermal energy away from the walls, preventing the water from condensing.The prevention of moisture forming on walls therefore inhibits mould growth.This Anti Condensation Paint also increases the wall temperature, thus reducing the ‘dew point’ or the temperature at which condensation occurs.Product Uses:BathroomsUtility roomsKitchensLintels over Windows and Doors which produce cold spotsCold Walls and CeilingsIndustrial ApplicationsProduct Advantages:Coating is Waterproof When Dry and Walls are Warm to the TouchPrevents Formation of Black Mould and Other Harmful FungiSuitable for Any Interior Wall - Particularly Exterior Facing Walls, Bathrooms and KitchensTakes Up to 60% Longer for Condensation to Occur on WallsIncrease the Life of Your Chosen Paint or Wallpaper FinishCan Be Over Painted or Wall Papered Over With Any Finish, Without Reducing Its EffectivenessAntibacterial PropertiesWarm Air is Reflected Back Into the Room, Rather Than Being Absorbed by Cold Walls, Increasing Its Overall TemperatureApplicationSubstrate Preparation:Ensure surface is free from mould and fungus using MCS1 Mould Clear Solution.Remove any loose paint or wallpaper, grease and oil stains. Any cracks must be filled using a crack filler and left to set before application can commence.For coating over plastic or metal, it is advisable to complete a test on the substrate first.Mixing:Upon opening the tin, gently stir the medium in order to ensure glass bubbles are evenly spread throughout.DO NOT USE mechanical stirrer as this could damage the glass beads.Application Method:Wykamol ThermalDry is designed for easy application with either a brush or roller.Allow 2-4 hours between application of coats. A two-coat application is necessary to achieve maximum effectiveness.Do not apply Wykamol ThermalDry below 5°C or above 30°C.Curing:Allow for 2-4 hours between application of second coat of Wykamol ThermalDry and before applying chosen finish.Coverage:Approximately 4m² - 5m² per Litre, based on a two-coat application.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4285098295395 shopify_GB_4285098295395_30877241868387 new 55.86 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/THERMALDRY_5L_2517c9fd-c30e-4fbc-a14f-8d6893e0c0d9_grande.jpg?v=1573830842 5060207863346 Wykamol Group WYTHDRYW50 Anti-Condensation Paint 5 Litres US 2.5 kg 0.00 GBP Wykamol Group Wykamol Technoseal DPM Damp Proof Paint https://www.platinumchemicals.co.uk/products/technoseal-damp-proof-paint?variant=13072584769635 Technoseal Damp Proof Paint is a ready to use, SBR based, liquid damp proof membrane (DPM) which provides a seamless barrier against water penetration, radon, gas methane and carbon dioxide.This damp proof paint is supplied in 5 Litre containers, available in White or Black.DescriptionTechnoseal DPM Damp Proof PaintTechnoseal Damp Proof Paint is a ready to use, SBR based, liquid damp-proofing membrane which provides a seamless barrier against water penetration, radon, gas methane and carbon dioxide.Technoseal Damp Proof Paint is a viscous liquid of similar consistency to emulsion paint and dries to form a tough, semi gloss finish.Product Benefits:Non-Toxic, Non-Hazardous and Solvent-FreeIdeal in very wet areas - Floors and Walls in Wet Rooms and KitchensEasy application by Brush, Roller or High Pressure SprayCan be applied to Damp Walls and FloorsApply to Blockwork, Stone, Brick, Timber and ConcreteCan be Plastered and Boarded on topFor Internal use only unless Rendered / Protected on topTypical Applications:Floors: Under/ above screeds to provide a damp-proof membraneBasements: As part of a waterproofing system below ground levelWalls: Can be used under render or plaster as a water barrier or vapour barrierPonds: Should be used as a finish over one of our Tanking Slurry Products in ponds which hold aquatic life etc. ApplicationPreparation:The substrate should be smooth or have a light, even texture. Any masonry should be flush pointed and defects in existing surfaces made good.Ensure surface is clean, sound and free of dust, loose materials or surface water, but damp substrates are acceptable. It is sometimes advantageous to pre-wet concrete or masonry substrates before application.Test adhesion to substrate using a sample area before commencing application.Mixing:If necessary, the compound can be diluted with up to 10% water, however, care should be taken to ensure the correct dry coat thickness is achieved.Application Method:Technoseal Damp Proof Paint can be applied using brush, roller or airless spray.Single Coat ApplicationsIf a single dry coat thickness of more than 0.3mm is required, it is recommended that Technoseal be applied using airless spray. A single coat thickness of up to 1mm is possible using this application method.Two Coat ApplicationsIf two coats are being applied it is recommended that the coats be applied at right angles to each other. Before applying the second coat it is necessary to let the first coat become touch dry. The time scale for this will vary according to site conditions, but will typically be after 1 hour.The second coat should be applied within 24 hours. After all coats have been applied, the membrane should be left foor at least 4 days before attempting any bond tests.Roof ApplicationsBlistering can sometimes occur during this application process. This occurs when the heat from the sun causes a vapour pressure build up below the membrane.The problem is exacerbated if the background concrete is wet. To minimise this risk and ensure a good bond to the substrate, the following should be undertaken.Vigorously brush the first coat into the background concrete using a stiff bristled brush.ORPrime the roof with a slurry of SBR Bonding Agent, if using roller, or an airless spray application method. Allow the slurry to harden for 2 days before applying Technoseal.Wall / Floor JunctionsIn some situations, e.g. at high stress points such as wall / floor junctions, it is beneficial to use polypropylene fabric (scrim) reinforcement. By choosing a suitable reinforcement it is possible to achieve good control of the coating thickness.Choose a fabric with an approximate thickness of 0.5mm.Roll the fabric into the base coat while wet.Allow the first coat to dry to a tacky conditionCompletely fill and cover the mesh with the second coat of Technoseal and a minimum thickness of 0.6mm will automatically be achieved.Limitations:Technoseal should not be applied when the temperature of the substrate, or the air temperature is below 7°C and falling.The dried film, like most organic coatings, is combustible and hence will not be suitable in all situations e.g. it should not be used to coat flammable materials (expanded polystyrene).A minimum dried coat thickness of 0.6 mm is needed to provide a vapour barrier.This should be applied in a minimum of two coats.The incorporation of polypropylene fabric increases the tensile strength but decreases the extensibility.Coverage:Up to 5m² based on a two coat applicationData SheetsTechnical Data SheetSafety Data Sheet - Technoseal WHITESafety Data Sheet - Technoseal BLACK shopify_GB_1529707298915 shopify_GB_1529707298915_13072584769635 new 35.94 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/TECHNOSEAL_WHITE_5L_grande.jpg?v=1580722800 5060207860109 Wykamol Group WYTECHW5 Damp Proof Paint 5 Litres US 5.0 kg 0.00 GBP Wykamol Group Wykamol Technoseal DPM Damp Proof Paint https://www.platinumchemicals.co.uk/products/technoseal-damp-proof-paint?variant=13072598237283 Technoseal Damp Proof Paint is a ready to use, SBR based, liquid damp proof membrane (DPM) which provides a seamless barrier against water penetration, radon, gas methane and carbon dioxide.This damp proof paint is supplied in 5 Litre containers, available in White or Black.DescriptionTechnoseal DPM Damp Proof PaintTechnoseal Damp Proof Paint is a ready to use, SBR based, liquid damp-proofing membrane which provides a seamless barrier against water penetration, radon, gas methane and carbon dioxide.Technoseal Damp Proof Paint is a viscous liquid of similar consistency to emulsion paint and dries to form a tough, semi gloss finish.Product Benefits:Non-Toxic, Non-Hazardous and Solvent-FreeIdeal in very wet areas - Floors and Walls in Wet Rooms and KitchensEasy application by Brush, Roller or High Pressure SprayCan be applied to Damp Walls and FloorsApply to Blockwork, Stone, Brick, Timber and ConcreteCan be Plastered and Boarded on topFor Internal use only unless Rendered / Protected on topTypical Applications:Floors: Under/ above screeds to provide a damp-proof membraneBasements: As part of a waterproofing system below ground levelWalls: Can be used under render or plaster as a water barrier or vapour barrierPonds: Should be used as a finish over one of our Tanking Slurry Products in ponds which hold aquatic life etc. ApplicationPreparation:The substrate should be smooth or have a light, even texture. Any masonry should be flush pointed and defects in existing surfaces made good.Ensure surface is clean, sound and free of dust, loose materials or surface water, but damp substrates are acceptable. It is sometimes advantageous to pre-wet concrete or masonry substrates before application.Test adhesion to substrate using a sample area before commencing application.Mixing:If necessary, the compound can be diluted with up to 10% water, however, care should be taken to ensure the correct dry coat thickness is achieved.Application Method:Technoseal Damp Proof Paint can be applied using brush, roller or airless spray.Single Coat ApplicationsIf a single dry coat thickness of more than 0.3mm is required, it is recommended that Technoseal be applied using airless spray. A single coat thickness of up to 1mm is possible using this application method.Two Coat ApplicationsIf two coats are being applied it is recommended that the coats be applied at right angles to each other. Before applying the second coat it is necessary to let the first coat become touch dry. The time scale for this will vary according to site conditions, but will typically be after 1 hour.The second coat should be applied within 24 hours. After all coats have been applied, the membrane should be left foor at least 4 days before attempting any bond tests.Roof ApplicationsBlistering can sometimes occur during this application process. This occurs when the heat from the sun causes a vapour pressure build up below the membrane.The problem is exacerbated if the background concrete is wet. To minimise this risk and ensure a good bond to the substrate, the following should be undertaken.Vigorously brush the first coat into the background concrete using a stiff bristled brush.ORPrime the roof with a slurry of SBR Bonding Agent, if using roller, or an airless spray application method. Allow the slurry to harden for 2 days before applying Technoseal.Wall / Floor JunctionsIn some situations, e.g. at high stress points such as wall / floor junctions, it is beneficial to use polypropylene fabric (scrim) reinforcement. By choosing a suitable reinforcement it is possible to achieve good control of the coating thickness.Choose a fabric with an approximate thickness of 0.5mm.Roll the fabric into the base coat while wet.Allow the first coat to dry to a tacky conditionCompletely fill and cover the mesh with the second coat of Technoseal and a minimum thickness of 0.6mm will automatically be achieved.Limitations:Technoseal should not be applied when the temperature of the substrate, or the air temperature is below 7°C and falling.The dried film, like most organic coatings, is combustible and hence will not be suitable in all situations e.g. it should not be used to coat flammable materials (expanded polystyrene).A minimum dried coat thickness of 0.6 mm is needed to provide a vapour barrier.This should be applied in a minimum of two coats.The incorporation of polypropylene fabric increases the tensile strength but decreases the extensibility.Coverage:Up to 5m² based on a two coat applicationData SheetsTechnical Data SheetSafety Data Sheet - Technoseal WHITESafety Data Sheet - Technoseal BLACK shopify_GB_1529707298915 shopify_GB_1529707298915_13072598237283 new 35.94 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/TECHNOSEAL_BLACK_grande.jpg?v=1580722810 5060207860000 Wykamol Group WYTECHB5 Damp Proof Paint 5 Litres US 5.0 kg 0.00 GBP Wykamol Group Wykamol Siliconate K Damp Proofing Fluid https://www.platinumchemicals.co.uk/products/aqueous-dpc-fluid-siliconate-k?variant=7653625102366 Siliconate K Damp Proofing Fluid is a BBA Approved, Concentrated Aqueous DPC Fluid which, once diluted with water, is injected into brick walls above ground level to create a Chemical Damp Proof Course (DPC). This may be necessary where an existing DPC has broken down or an orthodox DPC is missing.Siliconate K Damp Proofing Fluid dilutes 1:6 with water to make 25 Litres of ready-to-use product.Supplied in 3.6 Litre Containers, Concentrated Solution. Siliconate K is supported by BBA Certification Certificate No: 02/3961.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionSiliconate K Damp Proofing FluidSiliconate K is a clear, odourless concentrate of Potassium Methyl Siliconate.Once diluted with water the liquid is introduced into pre-drilled holes by either transfusion or low pressure injection to form a continuous chemical damp proof course.Siliconate K is designed to be used in accordance with BS6576:2005 for installation of chemical damp-proof courses.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Product Benefits:BBA ApprovedOdourless SolutionEffective for at least 20 YearsConcentrated Solution - Easy Storage and TransportationLow Hazard and Environmentally SafeCan be used in all types of MasonryCan be used in conjunction with our range of Damp Proof Membranes.PreparationMixing:Siliconate K a concentrated solution and should be diluted at a rate of 1:6 parts water.A 3.6 Litre bottle makes 25 Litres of diluted, ready-to-use solution.Substrate Preparation:Check and overhaul rainwater goods to ensure they are clean and in good working order. Repair or install drains to carry away surface water.If internal floors are below external ground level, form trenches along the external face of the walls to at least 150 mm below the proposed DPC level (where foundation depths allow). If this approach is not feasible the DPC must be placed at 150 mm above external ground level and the internal walls tanked below the DPC to prevent lateral migration of moisture/ salts..Remove skirtings, fixings and render/plaster to expose the line of the proposed DPC (mortar bed).Internal plaster affected by hydroscopic salts must be removed from the area to be treated, to a height of 300mm above the maximum level of rising damp.Check flooring timbers for signs of fungal decay and repair/ replacement as appropriate.Ensure wall cavities are cleared of debris.Drilling Preparation:Walls vary in thickness and type of construction so it is essential these factors are taken into account before deciding on an appropriate drilling pattern.DPC height should always be at least 150 mm above external ground level. In the case of solid floors, insert the DPC as close to floor level as possible.Vertical DPC's should be provided to connect horizontal DPC's where ground levels change and to isolate untreated wall areas (adjoining properties, garden walls etc.). In most cases solid brick walls may be drilled and injected from one side only.For cavity walls each leaf may be dealt with as a separate 115 mm thick wall (see coverage rates below).Alternatively, if preferred, drill through the selected mortar course, across the cavity, then drill the outer leaf of brickwork to a depth of 100 mm and inject in one continuous process. Always ensure that the cavity is clear of debris before treatment.In random stone and rubble filled walls, as far as practically possible, follow the mortar course at the appropriate level. However, if the stone is of a porous type (mortar/stone), it may be possible to vary the drilling locations as long as the mortar bed perpends are treated. In walls of a thickness greater than 350 mm, it is recommended that drilling is undertaken from both sides at a corresponding height.In the case of drill holes becoming blocked, these should be re-drilled just prior to injection or a new hole should be drilled nearby to ensure that an adequate volume of Siliconate K is introduced.Drill Hole Size, Depth & Location:Drill holes, 10 mm to 16 mm in diameter, in to the mortar bed at intervals between 150mm and 170mm. The hole depths required for various wall thicknesses are shown in the table below.For walls of intermediate thickness the depth of holes should be pro rata. Where the masonry is irregular, ensure the horizontal drilling pattern targets the base of all perpends of the course selected.Where possible, thicker walls (230 mm or more) should be treated from both sides, or if access is restricted, injection can be carried out from one side by sequential drilling (75mm, 190mm etc.).Drill hole depth required, dependent on wall thickness:Wall Thickness4½" (115mm)9" (230mm)13½" (345mm)18" (460mm)Borehole Depth75mm190mm320mm430mm ApplicationInjection:Insert injection nozzle with an expanding rubber sealing washer into the full depth of the pre-drilled hole.Fill each hole fully with Siliconate K at a pressure of 300kPa. In saturated walls, lower pressures (c. 100kPa) delivered over longer periods of time are likely to be more successful.When using a gravity feed technique (transfusion), extra care must be taken to ensure the recommended dose levels are achieved.Spilt material should be wiped up immediately and the wipes disposed of appropriately. Contaminated surfaces should be washed immediately with warm soapy water.If Siliconate K penetrates non-target surfaces (e.g. a patio slab) it will normally dry clear to finish. However, if staining arises consult our Technical Department for further advice.Coverage:This will vary according to the nature and porosity of the substrate. A general guide for 9” (230mm) brickwork would be 3 litres of diluted product per linear metre run.In other words, a 3.6L Container (once diluted to 25L) will cover around 7 - 10 linear metres based on a standard 9" thick brick, depending on porosity of substrate.Plugging:On external faces of walls, drill holes can be re-pointed using a matched mortar or can be plugged with DPC Injection Plugs (Available in a variety of colours, suitable for 10mm - 12mm wide Drill Holes).Curing:Final cure takes 2 - 6 weeks depending on the thickness of the wall.Finishing:The removal and replacement of internal salt contaminated plaster is an important part of an effective damp-proof course. Salts left behind by rising damp are hygroscopic and can cause future staining independent of any issues with structural dampness.It is therefore essential to follow specific re-plastering guidelines drawn up for dealing with the particular challenges posed by damp / salt-affected surfaces.It is advisable to leave walls injected with Siliconate K to dry for as long as possible, and for at least 15 days, before removing excess salts and commencing replastering.It should be noted that whilst insertion of a chemical DPC inhibits further moisture from rising up into the wall, the moisture present before the DPC will take time to dry out.Redecoration:A damp wall takes time to dry out. As a general guide, the drying rate is given as 1 month for every 25mm of wall thickness (BRE Digest 163, ‘Drying out buildings’). Thus 230mm will take approximately 9 months to dry. However, the drying processes depend on conditions, ventilation and the type of masonry, so drying may take considerably longer.Due to the potential prolonged drying of the wall, the following must be considered:Delay any decoration for 4-6 weeks following re-plastering and allow for good natural ventilation to enhance drying. Do not apply heat or accelerated drying methods.Do not use wallpaper for at least 12 months (longer on thick walls).Redecorate using a non vinyl based emulsion.Maintain good ventilation around walls.Note: The initial decorations should be regarded as temporary, the final decorations not taking place for at least 12 months after completion of the damp proofing and ancillary work.Data SheetsTechnical Data SheetSafety Data SheetBBA Certificate shopify_GB_552124973086 shopify_GB_552124973086_7653625102366 new 20.82 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/SILICONATE_K_grande.jpg?v=1605884810 5060207861236 Wykamol Group WYKD21 Damp Proofing Fluid 3.6 Litre (Concentrate) US 3.6 kg Wykamol Group Wykamol Sealing Rope https://www.platinumchemicals.co.uk/products/wykamol-membrane-rope?variant=33186695741539 Wykamol Sealing Rope is used to wrap around the head of Wykamol Plaster Membrane Plugs or Wykamol CM Brick Plugs when installing the Wykamol Range of Damp Proof Membranes or Waterproof Membranes to provide a waterproof seal round the head of the fixing,Wykamol Sealing Rope can also be used to form a jointing waterproof seal on wall and floor membrane systems.Supplied in (W) 10mm x (L) 5.0M RollsDescriptionWykamol Sealing RopeWykamol Sealing Rope is a high quality product for use as part of a Cavity Drain Membrane System.Made from a 10mm bead of butyl rope, Wykamol Sealing Rope is used to either wrap around the head of plugs in a membrane application, giving the fixing a waterproof seal.Wykamol Sealing Rope is can also be used to form a seal at the overlap of adjacent sheets of Wykamol Waterproof Membranes when neither a flange joint of stud into stud joint has been made. shopify_GB_4724106133603 shopify_GB_4724106133603_33186695741539 new 10.74 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0951_grande.jpg?v=1605884763 Wykamol Group WYCMMR5 Waterproof Membrane Ancillaries 1.2 kg Wykamol Group Wykamol RenderProof Render Additive & Waterproofer https://www.platinumchemicals.co.uk/products/waterproofer-render-additive-renderproof?variant=7653628182558 RenderProof is a Render Additive & Waterproofer based on an alkaline soap mixed with fatty acids, designed for use in sand / cement, external render coats following the insertion of a chemical DPC.Available in 5 Litre and 25 Litre Containers, Concentrated Solution. Renderproof is part of the Wykamol Re-Plastering Specification which is supported by BBA Certification Certificate No: 02/3961.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionRenderproof Render Additive & WaterprooferRenderProof is an additive based on an alkaline soap mixed with fatty acids, designed for use in sand / cement, external render coats following the insertion of a chemical DPC.Efflorescent salts are often left behind in the wall after a chemical DPC, which are harmful to the plaster finish, leaving the appearance of damp patches.A suitable re-plastering specification must therefore be used, including a salt inhibiting and waterproofing product such as RenderProof.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Product Benefits:BBA ApprovedReduces pore size in Render to prevent passage of waterCovers large areas in a single applicationHighly Concentrated: 1 part RenderProof to 24 parts waterPrevents passage of residual ground salts which are harmful to plaster finishesVapour permeable, allowing the walls to breatheApplicationSurface Preparation (Masonry):Masonry joints should be raked out and all surface thoroughly cleaned to remove dust or other friable material. All traces of previous plaster must be removed. Any organic matter (including timber fixings) must be removedWhere appropriate, fixing points which necessitate cutting into the background must be prepared.High suction surfaces should be thoroughly wetted or primed using an SBR Bonding Agent. SBR can also be used to provide a mechanical key on smooth, dense surfaces.Where very high levels of salt contamination are present, or suspected, further preparation with Salt Neutraliser may be necessary before application commences. Consult our Technical Department if the extent or nature of the salt contamination is unclearMixing - Backing Coat:A mix of 3 parts by volume of washed, sharp sand to 1 part of cement, gauged with potable water containing 1 part of RenderProof with 24 parts of water. The constituents of mixes should conform to the following descriptions:Ordinary portland Cement (OPC) to BS EN 197-1:2011Aggregate-clean, sharp, washed sand. The coarsest, sharpest sand, suitably graded for plastering, should conform to BS EN 13139:2002Water - Fit for drinking and free from organic matter.N.B. The amount of gauging water in the undercoats should bethe minimum consistent with reasonable application.Mixing - Float Coat:A mix of 4 parts volume of washed, sharp sand to 1 part by volume of Ordinary Portland Cement.Pack SizeGauging Water5 Litre120 Litres of gauging water in dry sand per 250Kg of cement25 Litre600 Litres of gauging water in dry sand per 1250Kg of cementApplication - Backing Coat:The plaster should be applied to a thickness of 10-12mm. The backing coat should finish at least 50mm above the solid floor and must not bridge the Damp-Proof Course.Care should be taken to avoid dropping plaster or other debris through the gap between the wall and the edge of any suspended floor.The surface should be scratched as it begins to set, to give a good key for subsequent coats.Application - Float Coat:The plaster should be applied to a thickness of 8-10mm in the same areas as the backing coat.Application - Subsequent Coats:No more than two plaster coats should be applied in one continuous working process. If a greater thickness is required:The first coats should be scratched and left to cure for 7-14 daysApply SBR Bonding Agent as a primer before proceedingThe sand/ cement undercoats should be scrape finished and mist sprayed for the first 48 hours to reduce the risk of shrinkage and cracking.Conditions & Limitations:Under no circumstances should Gypsum based plaster be used for the backing or float coat, nor should it be added to the mix of either coat.RenderProof is not suitable for use in lime-based mixes or mixes with a lower cement content than recommended.The recommended sand and cement mix can be used to to ‘dab’ any angle beads etc. to avoid salting.Curing:A minimum of 24 hours curing time must be allowed after application of the float coat, even under ideal curing conditions.Finishing:The finishing plaster should be applied at a thickness of 1.5mm - 3mm. Since polished surfaces are undesirable, excessive use of the trowel or brush should be avoided.Redecoration:Initial decoration should be delayed as long as possible and should not be applied within 14 days of the finish plaster coat.Temporary decoration should be limited to a vapour permeable finish such as a breathable paint. Final decorations which reduce permeability, such as papers and oil paints, should not be applied until the walls have dried out, with at least 12 months being allowed following temporary decoration (for typical 225mm brickwork walls).Drying times for thicker walls may extend to several years and will depend, in part, on the level of winter time heating etc. If impermeable decorative finishes are to be applied, in such situations an alternative approach to reinstatement may be considered, involving the use of vapour impermeable ‘air-gap’ membranesData SheetsTechnical Data SheetSafety Data SheetBBA Certificate (Re-Plastering Specification) shopify_GB_552125071390 shopify_GB_552125071390_7653628182558 new 10.74 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/RENDERPROOF_5L_grande.jpg?v=1542974451 5060207861151 Wykamol Group WYBW16 Waterproofer Additive 5 Litres US 5.0 kg Wykamol Group Wykamol RenderProof Render Additive & Waterproofer https://www.platinumchemicals.co.uk/products/waterproofer-render-additive-renderproof?variant=7676272574494 RenderProof is a Render Additive & Waterproofer based on an alkaline soap mixed with fatty acids, designed for use in sand / cement, external render coats following the insertion of a chemical DPC.Available in 5 Litre and 25 Litre Containers, Concentrated Solution. Renderproof is part of the Wykamol Re-Plastering Specification which is supported by BBA Certification Certificate No: 02/3961.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionRenderproof Render Additive & WaterprooferRenderProof is an additive based on an alkaline soap mixed with fatty acids, designed for use in sand / cement, external render coats following the insertion of a chemical DPC.Efflorescent salts are often left behind in the wall after a chemical DPC, which are harmful to the plaster finish, leaving the appearance of damp patches.A suitable re-plastering specification must therefore be used, including a salt inhibiting and waterproofing product such as RenderProof.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Product Benefits:BBA ApprovedReduces pore size in Render to prevent passage of waterCovers large areas in a single applicationHighly Concentrated: 1 part RenderProof to 24 parts waterPrevents passage of residual ground salts which are harmful to plaster finishesVapour permeable, allowing the walls to breatheApplicationSurface Preparation (Masonry):Masonry joints should be raked out and all surface thoroughly cleaned to remove dust or other friable material. All traces of previous plaster must be removed. Any organic matter (including timber fixings) must be removedWhere appropriate, fixing points which necessitate cutting into the background must be prepared.High suction surfaces should be thoroughly wetted or primed using an SBR Bonding Agent. SBR can also be used to provide a mechanical key on smooth, dense surfaces.Where very high levels of salt contamination are present, or suspected, further preparation with Salt Neutraliser may be necessary before application commences. Consult our Technical Department if the extent or nature of the salt contamination is unclearMixing - Backing Coat:A mix of 3 parts by volume of washed, sharp sand to 1 part of cement, gauged with potable water containing 1 part of RenderProof with 24 parts of water. The constituents of mixes should conform to the following descriptions:Ordinary portland Cement (OPC) to BS EN 197-1:2011Aggregate-clean, sharp, washed sand. The coarsest, sharpest sand, suitably graded for plastering, should conform to BS EN 13139:2002Water - Fit for drinking and free from organic matter.N.B. The amount of gauging water in the undercoats should bethe minimum consistent with reasonable application.Mixing - Float Coat:A mix of 4 parts volume of washed, sharp sand to 1 part by volume of Ordinary Portland Cement.Pack SizeGauging Water5 Litre120 Litres of gauging water in dry sand per 250Kg of cement25 Litre600 Litres of gauging water in dry sand per 1250Kg of cementApplication - Backing Coat:The plaster should be applied to a thickness of 10-12mm. The backing coat should finish at least 50mm above the solid floor and must not bridge the Damp-Proof Course.Care should be taken to avoid dropping plaster or other debris through the gap between the wall and the edge of any suspended floor.The surface should be scratched as it begins to set, to give a good key for subsequent coats.Application - Float Coat:The plaster should be applied to a thickness of 8-10mm in the same areas as the backing coat.Application - Subsequent Coats:No more than two plaster coats should be applied in one continuous working process. If a greater thickness is required:The first coats should be scratched and left to cure for 7-14 daysApply SBR Bonding Agent as a primer before proceedingThe sand/ cement undercoats should be scrape finished and mist sprayed for the first 48 hours to reduce the risk of shrinkage and cracking.Conditions & Limitations:Under no circumstances should Gypsum based plaster be used for the backing or float coat, nor should it be added to the mix of either coat.RenderProof is not suitable for use in lime-based mixes or mixes with a lower cement content than recommended.The recommended sand and cement mix can be used to to ‘dab’ any angle beads etc. to avoid salting.Curing:A minimum of 24 hours curing time must be allowed after application of the float coat, even under ideal curing conditions.Finishing:The finishing plaster should be applied at a thickness of 1.5mm - 3mm. Since polished surfaces are undesirable, excessive use of the trowel or brush should be avoided.Redecoration:Initial decoration should be delayed as long as possible and should not be applied within 14 days of the finish plaster coat.Temporary decoration should be limited to a vapour permeable finish such as a breathable paint. Final decorations which reduce permeability, such as papers and oil paints, should not be applied until the walls have dried out, with at least 12 months being allowed following temporary decoration (for typical 225mm brickwork walls).Drying times for thicker walls may extend to several years and will depend, in part, on the level of winter time heating etc. If impermeable decorative finishes are to be applied, in such situations an alternative approach to reinstatement may be considered, involving the use of vapour impermeable ‘air-gap’ membranesData SheetsTechnical Data SheetSafety Data SheetBBA Certificate (Re-Plastering Specification) shopify_GB_552125071390 shopify_GB_552125071390_7676272574494 new 40.32 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/RENDERPROOF_25L_grande.jpg?v=1542974459 5060207861151 Wykamol Group WYBW17 Waterproofer Additive 25 Litres US 25.0 kg Wykamol Group Wykamol Plaster Membrane Plugs (Without Seals) https://www.platinumchemicals.co.uk/products/wykamol-plaster-plugs?variant=32838106021987 Wykamol Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure our range of Wykamol Damp Proof Membranes to the wall / substrate.These plugs are supplied without Sealing Washers. If a seal is required then use Wykamol Ultimate Plaster Membrane Plugs.An 8mm SDS Drill Bit is normally required for fixing Wykamol Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates.Supplied in (W) 8mm x (L) 65mm size only. Available in Pack Sizes of 100 or 200 Fixings.DescriptionWykamol Plaster Membrane PlugsWykamol Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure Wykamol Damp Proof Membranes to the wall / substrate. These fixings are also compatible with any other brand of Damp Proof Membrane available in our online store.Wykamol Plaster Membrane Plugs are supplied without Sealing Washers. If a seal is required then use Wykamol Ultimate Plaster Membrane Plugs.An 8mm SDS Drill Bit is normally required for fixing Wykamol Plaster Membrane Plugs, however a 7mm Bit may be used in 'poorer' substrates. shopify_GB_4662769320035 shopify_GB_4662769320035_32838106021987 new 16.32 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0932_4ecea5dc-8458-4e80-b51f-f07c85daa1c1_grande.jpg?v=1602245062 Wykamol Group WYCMPPW200 Damp Proof Membrane Ancillaries 1.5 kg Wykamol Group Wykamol Plaster Membrane Plugs (Without Seals) https://www.platinumchemicals.co.uk/products/wykamol-plaster-plugs?variant=32838106054755 Wykamol Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure our range of Wykamol Damp Proof Membranes to the wall / substrate.These plugs are supplied without Sealing Washers. If a seal is required then use Wykamol Ultimate Plaster Membrane Plugs.An 8mm SDS Drill Bit is normally required for fixing Wykamol Plaster Membrane Plugs, however a 7mm SDS Drill Bit may be used in 'poorer' substrates.Supplied in (W) 8mm x (L) 65mm size only. Available in Pack Sizes of 100 or 200 Fixings.DescriptionWykamol Plaster Membrane PlugsWykamol Plaster Membrane Plugs are high quality fixing plugs which can be used to fix and secure Wykamol Damp Proof Membranes to the wall / substrate. These fixings are also compatible with any other brand of Damp Proof Membrane available in our online store.Wykamol Plaster Membrane Plugs are supplied without Sealing Washers. If a seal is required then use Wykamol Ultimate Plaster Membrane Plugs.An 8mm SDS Drill Bit is normally required for fixing Wykamol Plaster Membrane Plugs, however a 7mm Bit may be used in 'poorer' substrates. shopify_GB_4662769320035 shopify_GB_4662769320035_32838106054755 new 10.02 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0932_4ecea5dc-8458-4e80-b51f-f07c85daa1c1_grande.jpg?v=1602245062 Wykamol Group WYCMPPW100 Damp Proof Membrane Ancillaries 1.5 kg Wykamol Group Wykamol No More Damp Tanking Slurry https://www.platinumchemicals.co.uk/products/wykamol-tanking-slurry?variant=39422540677219 Wykamol 'No More Damp' Tanking Slurry is a cementitious waterproofing system which creates a monolithic bond using crystalline chemicals when applied to concrete and masonry structures.When mixed with clean water and applied correctly, Wykamol 'No More Damp' Tanking Slurry forms a permanent waterproof coating to the concrete and masonry and is easily applied by brush, roller or spray. Wykamol 'No More Damp' Tanking Slurry is supported by BBA Certification Certificate No: 02/3961.Supplied in 20kg Bags inside a Bucket which can be used for mixing, available in Grey colour only.DescriptionWykamol 'No More Damp' Tanking SlurryTanking Slurry is a cementitious waterproofing system which creates a monolithic bond using crystalline chemicals when applied to concrete and masonry structures.When mixed with clean water and applied correctly, Tanking Slurry forms a permanent waterproof coating to the concrete and masonry and is easily applied by brush, roller or spray.Tanking Slurry waterproofs against positive and negative hydrostatic heads of water and is suitable for use, internally, externally, above and below ground. Tanking slurry is ideal for use as part of a damp-proofing course (DPC).Typical Applications:A permanent Damp Proof Course, particularly on rubble filled walls where a chemical Damp Proof Cream cannot be used.Waterproofing Of: Basements, Cellars, Swimming Pools, Brickwork, Block Work Structures, Concrete and Renders.Product Benefits:BBA ApprovedPermanent Waterproofing for Concrete and Masonry.Resists Positive and Negative Water Pressure.Superior Bond Strength.Resists Salt Contamination in Masonry.Suitable for use Above and Below Ground Level, for Internal and External use.Safe to use in contact with Potable Water.Easy to use, Brush, Roller or Spray Applied.PreparationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Surface Preparation:All active water leaks must be stopped using Wykamol Water Stop (Rapid Setting Plugging Compound) before continuing to the next stage of application.Uneven SurfacesRemove by suitable means, all loose pointing, any remaining render or plaster, wood, dust, grease, oil, organic growth or other foreign materials that may cause contamination or adversely affect adhesion properties. To create a level surface, Universal Mortar should be applied in line with the relevant data sheet, which is available upon request or can be downloaded from our website. Follow the Universal Mortar priming requirements before application.Level SurfacesIf there is any exposed steel present, apply two coats of suitable corrosion inhibitor to the exposed steel, by brush. Remove all loose material and surface latencies, i.e. dust, oil, grease, corrosion and organic growth, preferably by using wet grit or water blasting techniques. The strength of the concrete subbase must be a minimum of 25 N/mm².Note: Special precautions may be necessary to ensure a continuous waterproof barrier at the wall to floor joints and corner joints. This is to avoid sharp changes of angle in the tanking membrane. The joints should be thoroughly raked out and cleaned prior to an application of Wykamol Universal Mortar as a fillet seal.PrimingUsing a brush, roller or spray, apply SBR Bonding Agent, mixed 1:1 (by volume) with water.Allow to become tacky to the touch. This will take approximately 30 minutes to 2 hours.Mixing:The consistency of Wykamol 'No More Damp' Tanking Slurry can be varied to suit the application method.Recommended Water AdditionsPack SizeBrush AppliedTrowel AppliedSpray Applied20Kg Bucket3.2 - 4 Litres3.2 - 3.6 Litres3.5 - 4.2 LitresWhen mixing Wykamol 'No More Damp' Tanking Slurry, use ONLY CLEAN WATER, a clean mixing vessel and a mechanical mixer.Place the recommended amount of clean water into suitable mixing bucket.Using a slow speed electric paddle mixer (400-600 rpm), gradually start to add the powder whilst mixing.Ensure all the powder is added.Mix for approximately 1-3 minutes to achieve a creamy lump free consistency.If required, add small amount of water to obtain the correct consistency depending on application.Once mixed, Wykamol 'No More Damp' Tanking Slurry has a 30 minute pot life at 20°ApplicationBrush and Trowel Application:Wykamol 'No More Damp' Tanking Slurry is a minimum 2 coat application, with each layer applied at a uniform thickness of at least 2mm per coat.Apply in even layers using a stiff bristled brush or broom / trowel on vertical surfaces and a rubber squeegee or stiff bristled brush/ trowel for horizontal surfaces.It is essential the first coat is well brushed or trowelled into the surface to ensure a good bond with the substrate.Allow the first coat to harden (approx. 2 - 5 hours). Apply a second coat of Tanking Slurry as soon as the first coat has hardened, but not fully set.Apply the second coat at 90° angle to the first, ensuring a minimum overall thickness of 2mm.Spray Application:Use traditional wet mortar spraying equipment and processes, ensuring final coat provides a uniform thickness of at least 2mm.Coverage:A 20Kg of Wykamol 'No More Damp' Tanking Slurry should cover approximately 7m² based on two coats.Limitations & Conditions:The product should not be applied in temperatures under 5°C and falling, or if temperatures are expected to fall below 5°C within 24 hours. Ensure the substrate temperature is not below 5°C before commencing application.Avoid application in direct sunlight to prevent rapid drying out. If Tanking Slurry dries out too rapidly between coats, repeat priming process.When applying to environments that will contain aquatic life, such as ponds, always finish with Wykamol Technoseal DPM, and refer to the relevant data sheet, which is available upon request or can be downloaded from our website.Note: Gypsum plaster must not be used in direct contact with Tanking Slurry.Curing & Ventilation:Curing procedures should be strictly adhered to. It is important that the surface of the slurry is protected from strong sunlight and drying winds, with either a suitable curing compound, polythene sheeting, damp hessian or similar, for a minimum of 48 hours.If Wykamol 'No More Damp' Tanking Slurry is to be left unprotected, fine mist spray the surface 3 - 4 times daily, for a minimum of 48 hours.FinishingFinishing Method:Wykamol 'No More Damp' Tanking Slurry is suitable for overcoating once correctly and thoroughly cured. Plaster should take place using Renovation Plaster, ideally 48 hours after the final coat of Tanking Slurry has been applied.Repeat priming process as detailed in the substrate preparation section, prior to an application of Renovation Plaster.If Wykamol 'No More Damp' Tanking Slurry has been applied as a DPC, breathable paint must be used on top of any finish. If redecoration is to occur 12 months after the DPC installation, non-breathable finishes may be considered. However, the moisture content of the plaster and background must be in line with the recommendations of the supplier of the chosen finish.Note: Wykamol 'No More Damp' Tanking Slurry must not be punctured by wall fixings, e.g. dry lining work etc.Data SheetsTechnical Data SheetWykamol Tanking Slurry User GuideSafety Data SheetBBA Certificate shopify_GB_6590534189155 shopify_GB_6590534189155_39422540677219 new 39.00 GBP20.34 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/NoMoreDampTanking_grande.jpg?v=1623413799 Wykamol Group WYBW04 Tanking Slurry 20Kg Bag in a Bucket US 20.0 kg Wykamol Group Wykamol Microtech Masonry Biocide Masonry Dry Rot Treatment https://www.platinumchemicals.co.uk/products/masonry-biocide-dry-rot-treatment-microtech?variant=7653398478878 Microtech Masonry Biocide is an Concentrated Biocide product which is used for the effective treatment of Dry Rot on Masonry Substrates and Brickwork. Microtech Masonry Biocide dilutes with water to make 25 Litres of Ready-to-use product.Microtech Masonry Biocide should only be used on Masonry substrates. For an effective Dry Rot Treatment for use on Timber, see Microtech Dual Purpose or Lignum Pro Gel.  Microtech Masonry Biocide carries the HSE Approval No 7361.Supplied in 1 Litre Containers, Concentrated Solution.DescriptionMicrotech Masonry BiocideMicrotech Masonry Biocide is a unique formulation containing ‘Polyphase’ (a Carbonate Fungicide) for the control of Dry Rot (Serpula Lacrymans) in walls and the removal and prevention of moulds, algae, mosses and lichens from interior / exterior surfaces.The special properties of this unique micro emulsion system give fast action and excellent absorption rates in walls when sprayed or injected.Approved under the Control of Pesticides Regulations 1986.For use only by Professional Operators.For use only as a Surface Biocide.Product Benefits:Dilutes to make 25 litres of Ready-to-use ProductUnique micro emulsion system.Deep penetration in masonry.Non-flammable.Active Ingredients:IPBC (3-Iodo-2-Propynyl Butyl Carbamate)IPBC (3-Iodo-2-Propynyl Butyl Carbamate) 2.85% w/w: A biocide that provides the maximum spectrum of biological activity against the dry rot fungus (Serpula Lacrymans).PreparationPreparation - For Dry Rot Treatment:Rectify the defects contributing to the damp conditions which caused the outbreak (e.g. repair rain water drainage systems, roof leaks, etc. Improve sub-floor ventilation, install DPC).Expose the full extent of the outbreak, including a margin of clearance beyond the last visible signs of growth in all directions, remove all mycelium, built-in timber lintels, wall plates, bonding timbers and plugs from the affected walls and clearance areas and dispose of by burning.N.B. If it is considered impractical to remove all timber from infected walls etc., it may be possible to protect the in-situ depending on the precise conditions prevailing etc.In a clean plastic drum add one litre of concentrate to 24 litres of clean water (makes 25 litres of final solution; rinse container prior to disposal).Once diluted, the Microtech Masonry Biocide solution remains stable for at least 7 days but should be agitated before use after lengthy storage. Drums of diluted material must be clearly labelled with the HSE number etc.Before starting work ensure the following statutory precautions are observed.Wear suitable protective clothing (coveralls) and synthetic rubber / PVC gloves plus eye protection when diluting or spraying overhead. Avoid excessive contamination of overalls and launder regularly.Cover water storage tanks before application. Do not breathe spray mist. When using, do not eat, drink or smoke.Do not contaminate watercourses or ground. Prevent any surface run-off from entering drains.Dispose of waste material or container safely.Preparation - For External Treatments (Algae, Moss, Lichens etc.):In cases of severe moss build up on surfaces, remove as much as possible by physical means or break up the surface before proceeding as below. Observe the general precautions listed above (Preparation - For Dry Rot Treatment).Some species of lichens are resistant to treatment due to their impervious surface.To optimize the effect of the biocide solution it is advisable to abrade the face of such growths prior to treatment (e.g. by wire brush).Preparation - For Treatments Prior to Painting / Mould Control:Removal of all organic growth from plaster and masonry surface is an essential pre-requisite for the successful performance of decorative coatings.For interior work, most races of mould, algae, etc. should be removed initially by normal cleaning methods, followed by an application of Microtech Masonry Biocide solution (see Application - For Treatments Prior to Painting / Mould Control).ApplicationApplication - For Dry Rot Treatment:On Walls: Walls should be treated in depth with diluted Microtech Masonry Biocide at the rate of 10 litres per m³ of brickwork masonry. 4.5” (115mm) brick walls can normally be treated by generous low pressure spray application (at 1 litre per 2m²) to both sides of the wall.Thicker walls will need to be drilled at approximately 230mm staggered intervals over the area to be treated (12-16mm drill bit). Holes should be angles downward between 30° and 45° to facilitate filling them with the treatment solution.When the walls are drilled from both sides, the depth of the hole should reach the centre of the wall. If the walls are drilled from one side only, the depth of the holes should extend to within approximately 50mm of the reverse face of the wall.Such treatments should be completed by surface application to both faces of the walls, although external walls need not be sprayed from the outside. 11” (280mm) cavity walls can be treated as two separate 4.5” (115mm) walls providing sufficient access at suitable intervals to the cavity has been made to ensure proper application of the Biocide to the faces of the brickwork exposed within the cavity.It should be ensured that the cavity is clear and where possible, ventilated.Local conditions, wall materials and type of construction would determine any variations which may be necessary to the suggested method of treatment to ensure the correct quantity of fluid (10 litres per m³) is evenly distributed within the mass of brickwork or masonry being treated.On Floors: Where the fungal growth has extended into the subfloor area below a timber ground floor structure, the base of the structural walls, sleeper walls and oversite of the affected area must also be treated with Microtech Masonry Biocide.Where the growth has penetrated a concrete oversite or subsoil it should be excavated and the exposed surface treated with Microtech Masonry Biocide solution.Note: Areas below ground level (where sources of moisture cannot be isolated) may not be suitable for treatment using the above procedures.Application - For External Treatments (Algae, Moss, Lichens etc.):Following dilution (1:24 with clean water), application can be either with a low pressure pneumatic sprayer (course spray) or by a watering can with a fine rose attachment.For small items such as headstones, etc., Microtech Masonry Biocide solution may be applied by brush provided the solution is flooded generously into inscriptions and other cavities. Always direct the spray away from the body; do not spray directly overhead.For maximum effectiveness Microtech Masonry Biocide should be applied when surfaces are reasonably dry and when rain is not imminent. Treatment should take place in win free conditions to minimise spray drift.Once existing organic growth has been killed by initial application (1-7 days) this should be removed by brushing or power hosing followed by a second application of Microtech Masonry Biocide.In the case of roof treatments temporary wire netting guards should be provided over down pipes and the gutters cleared of dead moss, etc. once all the debris has been removed.Re-treatment will be necessary at intervals to prevent growth becoming re-established. The life of treatments may be considerably shortened on:Surfaces subject to excessive mechanical wearVery dense substrates which do not absorb much fluidSurfaces where dirt etc. is allowed to accumulatePersistently damp surfaces.Note: We do not recommend the use of this product on asbestos cement surface due to the risk of fibre release and dispersal during cleaning.Application - For Treatments Prior to Painting / Mould Control:After Preparation work is complete, apply Microtech Masonry Biocide solution to the surface. On relatively non-porous surfaces such as painted plaster or ceramic tiles the application rate can be reduced and the treating solution applied by fine mist spray.N.B. Mould etc. colonies can cause damage to underlying substrates (paint, wallpaper). Care should be taken to ensure damaged decorations are removed prior to treatments and /or new coatings being applied. As soon as the surface is dry the decorative finish can be applied.FinishingFinishing - For Dry Rot Treatment:N.B. UNPROTECTED PERSONS AND ANIMALS SHOULD BE KEPT AWAY FROM TREATED AREAS FOR 48 HOURS OR UNTIL SURFACES ARE DRY.Ideally, any area affected by dry rot should be left exposed as long as possible after treatment to facilitate rapid drying out of the masonry / oversite.Nevertheless, re-instatement including re-plastering can proceed without delay after the application of Microtech Masonry Biocide if required.All replacement timbers should be treated with a Lignum Wood Preservative or Boron Wood Preservative (see Timber Treatments) and isolated from direct contact with masonry (e.g. use DPC material behind studwork for dry lining plasterboard or galvanised steel hangers to support joist ends).In cases where damp conditions are likely to persist, timbers should be treated by industrial pre-treatment as detailed in BS 5589:1989.If an adequate sub-floor ventilation system was a contributory factor to the Dry Rot outbreak, steps must be taken to improve the system. This can normally be achieved by inserting additional or larger air bricks, strategically placed and free from obstruction (see BRE DAS 73, 1986).Any obstructions within the subfloor areas which would impede the cross flow movement of air must be dealt with. A satisfactory sub-floor ventilation system is one which will maintain the moisture content of the under side of the floor structure below 20%.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552087519262 shopify_GB_552087519262_7653398478878 new 16.08 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MICROTECH_BIOCIDE_1L_grande.jpg?v=1605884705 5060207860581 Wykamol Group WYDR01 Masonry Biocide 1 Litre (Concentrate) US 1.0 kg 0.00 GBP Wykamol Group Wykamol Microtech Insecticide Woodworm Treatment https://www.platinumchemicals.co.uk/products/wykamol-woodworm-treatment-microtech-insecticide?variant=31245916962915 Wykamol Microtech Insecticide is a highly effective Super Concentrated Woodworm Treatment used for the eradication and prevention of Woodworm and other wood boring insects. Wykamol Microtech Insecticide Woodworm Treatment dilutes with water to make up to 25 Litres of Ready-to-use product.Supplied in 150ml Containers, Concentrated Solution.  Wykamol Microtech Insecticide carries the HSE Approval No 10607.  Read our Guide on 'How to Treat Woodworm & Wood Boring Insects'DescriptionWykamol Microtech Insecticide - Woodworm TreatmentWykamol Microtech Insecticide is a Woodworm Treatment supplied as a 150g Concentrate which requires dilution with water to form a ready to use product.Wykamol Microtech Insecticide Concentrate is a highly concentrated woodworm treatment for the eradication and prevention of Woodworm and other Wood Boring Insects.Due to the microscopic size of the active ingredient, Microtech Insecticide is highly penetrating and therefore ultra-effective and long-lasting.Microtech Insecticide has virtually no odour and can be applied either by brush or low pressure spray to give long lasting protection.  Read our Guide on 'How to Treat Woodworm & Wood Boring Insects'Product Benefits:Dilutes to make up to 25 litres of Ready-to-use ProductEradicates and Prevents Infestation of Wood Boring InsectsHighly Penetrating Due to Microscopic Size of SolutionsSuitable for Interior and Exterior UseNon-flammableCan Be Applied Using Brush or Low Pressure SprayVirtually OdourlessApplication to Damp Timbers is Possible Without Reducing EffectivenessActive Ingredients:PermethrinPermethrin 31.06% w/w: The insecticide is effective against all life stages of wood boring insects whilst the surfactant system used in the formulation promotes rapid absorption and deep penetration into timber.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:The active ingredients in this product have been accepted by the nature Conservancy bodies as suitable for the treatment of roof voids where bats roost.However, it is a legal requirement to notify the appropriate Nature Conservancy body prior to any treatment of roof spaces where bats have been identified. Treatment must not be carried out whilst bats are at roost.Ensure that all timbers to be treated are clean and free from wood dust and other contaminants.Any paint, varnish or other surface coatings should be removed prior to application.If decay is present, remove all decayed wood and replace with suitably treated timber.Application Method:Always consult the Safety Data Sheet before commencing application.Microtech Insecticide can be applied using a brush, low pressure spray or dipping.Agitate the solutions well before use.Perform a test on a small, inconspicuous area before commencing complete application to ensure product finish is as expected.For application with low pressure spray or brush.Where possible dip the end grains of timber for a maximum of 3 minutes, otherwise use a good quality brush to work the product into the grains.Coverage:Apply at a rate of 1 Litre per 3 - 4m², once diluted.Re-Entry Time:Wykamol Microtech Insecticide has a HSE statutory 1-hour re-entry time.Finish:Product does not have a finish and leaves the same effect as applying water or solvent. It is always advisable to try on a small inconspicuous area before application to ensure product finish is as expected. Over coating can occur 24 hours after application, depending on the substrate and ambient temperatures. Stability:Product is stable in original packaging for 2 years when stored under ambient conditions. After 2 years product should be re-tested every 6 months to ensure active ingredient levels are within specification.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4343018324067 shopify_GB_4343018324067_31245916962915 new 17.04 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MICROTECH_INSECTICIDE_150G_grande.jpg?v=1605884666 Wykamol Group WYRT01 Woodworm Treatment 150g (Concentrate) US 0.15 kg Wykamol Group Wykamol Microtech Dual Purpose Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/wykamol-dry-rot-treatment-microtech-dual-purpose?variant=31246524579939 Wykamol Microtech Dual Purpose is a highly effective Super Concentrated Woodworm & Timber Rot Treatment used for the eradication and prevention of Woodworm (and other wood boring insects) and Wood Rotting Fungi (Dry Rot and Wet Rot).Wykamol Microtech Dual Purpose should only be used on Timbers. For an effective Dry Rot Treatment on Masonry substrates, see Microtech Masonry Biocide.Wykamol Microtech Dual Purpose dilutes with water to make up to 25 Litres of Ready-to-use product.Supplied in 400ml Containers, Concentrated Solution.  Wykamol Microtech Dual Purpose carries the HSE Approval No 10608.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWykamol Microtech Dual Purpose - Woodworm & Timber Rot TreatmentWykamol Microtech Dual Purpose Concentrate is a Dual Woodworm & Dry Rot Timber Treatment supplied as a 400g concentrate which requires dilution with water to form a ready to use product.Wykamol Microtech Dual Purpose Concentrate offers a solution to a range of wood destroying issues.Containing both insecticide and fungicides, Microtech Dual Purpose Concentrate both protects against and eradicates wood boring insects, wood rotting fungi (both wet rot and dry rot) and blue stain.Due to the microscopic size of the active ingredient, Microtech Dual Purpose is highly penetrating and therefore ultra-effective and long-lasting.Wykamol Microtech Dual Purpose has virtually no odour and can be applied either by brush or low pressure spray to give long lasting protection.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Dilutes to make up to 25 litres of Ready-to-use ProductEradicates Wood Boring Insects and Wood Rotting FungiPrevents Fungal Decay and Blue StainSuitable for Interior and Exterior UseNon-flammableCan Be Applied Using Brush or Low Pressure SprayVirtually OdourlessSolvent Free and Helps Prevent Waste Pollution by Reducing Single Use Plastic ContainersActive Ingredients:PermethrinPermethrin 13.02% w/w: The insecticide is effective against all life stages of wood boring insects whilst the surfactant system used in the formulation promotes rapid absorption and deep penetration into timber.PropiconazolePropiconazole 18.584% w/w: A Triazole Fungicide which has excellent efficacy against a range of wood destroying fungi.IPBC (3-Iodo-2-Propynyl Butyl Carbamate)IPBC (3-Iodo-2-Propynyl Butyl Carbamate) 6.125% w/w: A Carbamate Fungicide which is added to improve the efficacy envelope even further providing excellent efficacy against a range of wood staining fungi.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:The active ingredients in this product have been accepted by the nature Conservancy bodies as suitable for the treatment of roof voids where bats roost.However, it is a legal requirement to notify the appropriate Nature Conservancy body prior to any treatment of roof spaces where bats have been identified. Treatment must not be carried out whilst bats are at roost.Ensure that all timbers to be treated are clean and free from wood dust and other contaminants.Any paint, varnish or other surface coatings should be removed prior to application.If decay is present, remove all decayed wood and replace with suitably treated timber.Application Method:Always consult the Safety Data Sheet before commencing application.Microtech Insecticide can be applied using a brush, low pressure spray or dipping.Agitate the solutions well before use.Perform a test on a small, inconspicuous area before commencing complete application to ensure product finish is as expected.For application with low pressure spray or brush.Where possible dip the end grains of timber for a maximum of 3 minutes, otherwise use a good quality brush to work the product into the grains.Coverage:Apply at a rate of 1 Litre per 3 - 4m², once diluted.Re-Entry Time:Wykamol Dual Purpose has a HSE statutory 1-hour re-entry time.Finish:Product does not have a finish and leaves the same effect as applying water or solvent. It is always advisable to try on a small inconspicuous area before application to ensure product finish is as expected. Over coating can occur 24 hours after application, depending on the substrate and ambient temperatures.Stability:Product is stable in original packaging for 2 years when stored under ambient conditions. After 2 years product should be re-tested every 6 months to ensure active ingredient levels are within specification.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4343055712355 shopify_GB_4343055712355_31246524579939 new 29.64 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MICROTECHDUALPURPOSENEW_grande.jpg?v=1605884616 Wykamol Group WYRT02 Woodworm & Dry Rot Treatment 400g (Concentrate) US 0.4 kg Wykamol Group Wykamol Mesh Tape https://www.platinumchemicals.co.uk/products/wykamol-mesh-tape?variant=32838149603427 Wykamol Mesh Tape is a self-adhesive sealing tape made of a butyl rubber compound with a polypropylene fleece finish, developed for use with our range of Wykamol Damp Proof Membranes and Wykamol Waterproof Membranes.The 'Fleece' surface provides a 'key' for plastering and rendering over, therefore this tape should only be used with Membranes with a MESHED Surface. For a similar tape without the Fleece surface, see Wykamol Corner Strip Tape.Available in (W) 115mm x (L) 25M and (W) 115mm x (L) 12.5M Rolls.DescriptionWykamol Mesh TapeWykamol Mesh Tape is a self-adhesive sealing tape made of a butyl rubber compound with a polypropylene fleece finish.The tape has been developed for use with MESHED Membranes where a surface ‘key’ is required for plastering or rendering over.Wykamol Mesh Tape can also be used as an overtape to provide a key above joints to meshed membranes over joints already sealed with Wykamol Membrane Tape, Wykamol Rope or Wykamol Corner Strip Tape. shopify_GB_4662783213667 shopify_GB_4662783213667_32838149603427 new 49.80 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0928_grande.jpg?v=1602244957 Wykamol Group WYBWA29 Damp Proof Membrane Ancillaries 4.0 kg Wykamol Group Wykamol Mesh Tape https://www.platinumchemicals.co.uk/products/wykamol-mesh-tape?variant=33427389907043 Wykamol Mesh Tape is a self-adhesive sealing tape made of a butyl rubber compound with a polypropylene fleece finish, developed for use with our range of Wykamol Damp Proof Membranes and Wykamol Waterproof Membranes.The 'Fleece' surface provides a 'key' for plastering and rendering over, therefore this tape should only be used with Membranes with a MESHED Surface. For a similar tape without the Fleece surface, see Wykamol Corner Strip Tape.Available in (W) 115mm x (L) 25M and (W) 115mm x (L) 12.5M Rolls.DescriptionWykamol Mesh TapeWykamol Mesh Tape is a self-adhesive sealing tape made of a butyl rubber compound with a polypropylene fleece finish.The tape has been developed for use with MESHED Membranes where a surface ‘key’ is required for plastering or rendering over.Wykamol Mesh Tape can also be used as an overtape to provide a key above joints to meshed membranes over joints already sealed with Wykamol Membrane Tape, Wykamol Rope or Wykamol Corner Strip Tape. shopify_GB_4662783213667 shopify_GB_4662783213667_33427389907043 new 29.64 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0928_grande.jpg?v=1602244957 Wykamol Group WYBWA29-2 Damp Proof Membrane Ancillaries 4.0 kg Wykamol Group Wykamol Membrane Sealing Tape https://www.platinumchemicals.co.uk/products/wykamol-membrane-sealing-tape?variant=33180805922915 Wykamol Membrane Sealing Tape is a high quality, 2mm thick, double sided butyl tape used to attach 2 sheets of Waterproof Tanking Membrane together on walls or on floors along the flange where they overlap.Supplied in (W) 28mm x (L) 22.5M Rolls.DescriptionWykamol Membrane Sealing TapeWykamol Membrane Sealing Tape is a high quality, 2mm thick, double sided butyl tape used to attach 2 sheets of membrane together on walls or floors.The high grade HP600 bitumen makes this a long term solution for all membrane applications.Wykamol Membrane Sealing Tape is used for abutting joints, for repairs or where membranes have been cut to enable them to overlap such as at corners, reveals, wall / floor joints or protrusions through the membrane. shopify_GB_4723457884259 shopify_GB_4723457884259_33180805922915 new 25.86 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0958_grande.jpg?v=1605884549 Wykamol Group WYCMMT22 Waterproof Membrane Ancillaries 3.0 kg Wykamol Group Wykamol MCS3 Fungicidal Paint Additive https://www.platinumchemicals.co.uk/products/wykamol-mcs3-fungicidal-paint-additive?variant=7653547114526 MCS3 Fungicidal Paint Additive is specially formulated to protect decorative finishes from future mould attack. MCS3 Fungicidal Paint Additive should be mixed into emulsion paint, primer, undercoat, varnish, gloss, wallpaper paste, textured paint or tile adhesive.Platinum Building Chemicals supply a wide variety of condensation control and mould control products to aid with mould eradication and treatment.  MCS3 Paint Additive carries the HSE Approval No 7656.Supplied in 100ml Bottles. Each bottle will mix with up to 5 Litres of Water Based Paints.DescriptionMCS3 Fungicidal Paint AdditiveThe Mould Control System (MCS) is a two stage treatment for walls, ceilings etc. affected by condensation mould. When both stages are completed, surfaces will exhibit excellent resistance to mould growth even under severe condensation conditions.Typically, full control can be achieved for up to 5 years but this can be extended considerably where moisture control measures are implemented.MCS3 Paint Additive is specially formulated to protect decorative finishes from future mould attack.This should be mixed into emulsion paint, primer, undercoat, varnish, gloss, wallpaper paste, textured paint or tile adhesive.MCS3 Paint Additive prevents the return of mould and mould spores after an area has been adequately treated by MCS1 Mould Clear Solution.Important: Condensation is almost always the main cause of Black Mould. To reduce this underlying problem, ensure adequate ventilation throughout the property. In very extreme cases of mould other remedial measures may be required.  Our range of PIV Units, Extract Fans and Dehumidifier Vents may be of interest.Product Benefits:Can be used on walls, ceilings, window reveals, frames, doors etc.Add to paints, wallpaper pastes and groutsPrevents further growth of mould sporesActive Ingredient:MCS Paint Additive contains 3-Iodo-2-Propynyl-n-Butyl Carbamate 14.97% w/w.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Mixing:Add 100ml of MCS3 Paint Additive to 5L of water based paint (emulsion, vinyl, silk or matt).Add 50ml of MCS3 Paint Additive to 5L of solvent based paint (primer, undercoat or gloss).Blend the Paint Additive for at least 1 minute or until fully dispersed.Application Method:Apply the paint in accordance with the manufacturers instructions.Data SheetsThere is no individual Data Sheet for this product however the Mould Eradication Kit Data Sheet can be viewed below.Technical Data SheetSafety Data Sheet shopify_GB_552112193566 shopify_GB_552112193566_7653547114526 new 8.22 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MCS3_PAINT_ADDITIVE_grande.jpg?v=1573831993 5060207860901 Wykamol Group WYAC73 Mould Control 100ml Bottle US 0.1 kg Wykamol Group Wykamol MCS1 Mould Clear Solution https://www.platinumchemicals.co.uk/products/wykamol-mcs1-mould-clear-solution?variant=7653546262558 MCS1 Mould Clear Solution is an initial wash and sterilisation treatment to remove and kill mould spores and surface growths on hard surfaces such as walls, floors and ceilings, even on painted or papered surfaces. This product should be used in conjunction with MCS3 Fungicidal Paint Additive to create a fungicidal barrier and protect against future mould attack.Unlike most 'bleaching' products, MCS1 Mould Clear Solution is designed to KILL (not Clean) black surface mould, however a bleaching product may also be used to effectively clean the surface after treatment of MCS1, such as on bathroom tiles etc...  MCS1 Mould Clear Solution carries the HSE Approval No 9453.Supplied in 1 Litre Trigger Spray Bottles, ready-to-use solution.   Got a Larger Area to Treat? Have a look at our MCS1 Mould Clear Concentrate 5X. DescriptionMCS1 Mould Clear SolutionThe Mould Control System (MCS) is a two stage treatment for walls, ceilings etc. affected by condensation mould. When both stages are completed, surfaces will exhibit excellent resistance to mould growth even under severe condensation conditions.Typically, full control can be achieved for up to 5 years but this can be extended considerably where moisture control measures are implemented.MCS1 Mould Clear Solution is an initial wash and sterilisation treatment to KILL mould spores and surface growths on hard surfaces such as walls, floors and ceilings, even on painted or papered surfaces.MCS1 Mould Clear Solution is the cleaning supplied in our Mould Eradication Kit (Stage 1).Once treatment is complete, mix MCS3 Fungicidal Paint Additive into emulsion paint, primer, undercoat, varnish, gloss, wallpaper paste, textured paint or tile adhesive to protect decorative finishes from future mould attack.  Product Benefits:Can be used on walls, ceilings, window reveals, frames, doors etc.Removes and kills mould for up to 5 years when used in conjunction with MCS3 Paint Additive.Cleans and sterilises surfaces.Solution comes in ready-to-use spray bottle.Active Ingredients:MCS1 Mould Clear Solution contains Acticide 50x 4.76% w/w.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Application Method:Spray MCS1 Mould Clear Solution onto the affected surface from a distance of 3-5cm.Treat visible mould PLUS 1 metre beyond. Repeat the treatment on badly affected areas after 10-15 minutes.Areas to be treatedPainted & Timber Areas - Spray the area thoroughly with the MCS1 Mould Clear Solution.Papered Areas - Spray the paper. The MCS1 Mould Clear Solution acts as a biocide and stripping agent. Bag the mould contaminated paper and remove from the property. Treat the exposed plaster with a thorough spraying of MCS1 Mould Clear Solution.General Preparation - Once the surface is dry, scrape off any loose flaking paint and rub down. Previously painted surfaces must be etched using sandpaper.Coverage:1 Litre Solution should cover approximately 12.5m².Data SheetsThere is no individual Data Sheet for this product however the Mould Eradication Kit Data Sheet can be viewed below.Technical Data SheetSafety Data Sheet shopify_GB_552111931422 shopify_GB_552111931422_7653546262558 new 9.18 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MCS1_SPRAY_grande.jpg?v=1573831323 5060207861199 Wykamol Group WYAC71 Mould Control 1 Litre Spray US 1.0 kg Wykamol Group Wykamol MCS1 Mould Clear Concentrate 5X https://www.platinumchemicals.co.uk/products/wykamol-mcs1-mould-killer-concentrate?variant=8732500754531 MCS1 Mould Clear 5X is a concentrated solution designed to effectively KILL mould spores and surface growths on hard surfaces such as walls, floors and ceilings, and even on papered and painted surfaces.MCS1 Mould Clear 5X dilutes with water to make 25 Litres of Ready-to-use product.  MCS1 Mould Clear Solution carries the HSE Approval No 7667.Supplied in 5 Litre Containers, Concentrated Solution.DescriptionMCS1 Mould Clear 5XThe Mould Control System (MCS) is a two stage treatment for walls, floors and ceilings etc. affected by condensation mould. When both stages are completed, surfaces will exhibit excellent resistance to mould growth even under severe condensation conditions.Typically, full control can be achieved for up to 5 years but this can be extended considerably where moisture control measures are implemented.Supplied as a concentrate, MCS1 Mould Clear 5X is designed to provide an initial wash / sterilisation treatment to remove and kill mould spores and surface growths on hard surfaces in and around the home.We recommend the wash is applied before removing mould-damaged paint or paper (to minimize spread of viable spores). When applied liberally to papered surfaces it can be an effective stripping agent.After the first wash, and once damaged paper or plaster has been removed, it is necessary to apply a second wash with Mould Clear solution to leave the surface clean and remove any residues of dead spores etc. It is recommended that mould affected woodchip and Anaglypta papers are always removed and arenot recommended for re-instatement.Based on established active ingredients, the Mould Clear solution both cleans and sterilises the surface as the first stage towards redecoration.Alternatively, it can be used singly, as required, to control spore development where other measures are to be completed at a later time.Product Benefits:Can be used on walls, ceilings, window reveals, frames, doors etc.Removes and kills mould for up to 5 years when used in conjunction with MCS3 Paint Additive.Cleans and sterilises surfaces.Active Ingredients:MCS1 Mould Clear Concentrate 5X contains Benzalkonium Chloride & Ortho Phenol Solution 11.9% w/w; Quaternary Ammonium Compounds; Benzyl-C8-18-alkyldimethyl Chlorides.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Application Method:Dilute one part of concentrate with 4 parts of warm water.Once diluted, spray MCS1 Mould Clear Solution onto the affected surface from a distance of 3-5cm.Treat visible mould PLUS 1 metre beyond. Repeat the treatment on badly affected areas after 10-15 minutes.Areas to be treatedPainted & Timber Areas - Spray the area thoroughly with the MCS1 Mould Clear Solution.Papered Areas - Spray the paper. The MCS1 Mould Clear Solution acts as a biocide and stripping agent. Bag the mould contaminated paper and remove from the property. Treat the exposed plaster with a thorough spraying of MCS1 Mould Clear Solution.General Preparation - Once the surface is dry, scrape off any loose flaking paint and rub down. Previously painted surfaces must be etched using sandpaper.Coverage:Once diluted, the solution should cover approximately 12.5m² per litre.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_780958957667 shopify_GB_780958957667_8732500754531 new 31.44 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/MCS1_CONCENTRATE_grande.jpg?v=1573831619 Wykamol Group WYMCS15 Mould Control 5 Litre (Concentrate) US 5.0 kg Wykamol Group Wykamol HydraFlex - Flexible Tanking Slurry https://www.platinumchemicals.co.uk/products/wykamol-hydraflex-flexible-tanking-slurry?variant=32996946575459 HydraFlex Tanking Slurry is a two-component FLEXIBLE Coating made of a cementitious powder and a high concentration liquid polymer which, when mixed together provides, permanent waterproofing for concrete and masonry. HydraFlex Tanking Slurry also provides a protective waterproof barrier which can bridge cracks in the substrate so the coating remains water tight.Supplied as 15kg Bags of Cementitious Powder with additional 5kg Bottle of Polymer to make 20kg of Slurry Mixture, all supplied in a bucket which can be used for mixing. Available in Grey colour only.DescriptionHydraFlex Flexible Tanking SlurryHydraFlex Tanking Slurry is a two-component FLEXIBLE Coating made of a cementitious powder and a high concentration liquid polymer.HydraFlex Tanking Slurry can be applied to mineral substrates, such as concrete and masonry, to provide a protective waterproof barrier which can bridge cracks in the substrate so the coating remains water-tight.With superior crack-bridging ability down to -5°C, as well as thixotropic application properties, HydraFlex Tanking Slurry is a suitable solution for areas at risk of movement in both internal and external environments.Typical Applications:HydraFlex Tanking Slurry is used for Waterproofing of areas subject to vibration or minor substrate movement that are constructed of concrete, brickwork, or stone.These areas include:BasementsCellarsFoundationsLift PitsWater TanksConstructions Joints (Wall to Floor Junctions)Podium DecksBalconies / TerracesFlat RoofsProduct Benefits:Permanent waterproofing for concrete and masonry.Superior crack-bridging capability, even at sub-zero temperatures, making it ideal for high-risk areas.Resists both positive and negative water pressure.Recommended for both internal and external use.Bag and bottle system ensures accurate and simple mixing.Versatile product which can be used in a variety of areas.Excellent adhesion to well-prepared mineral substrates, even when damp.Exceptional workability, providing easy application on vertical and overhead surfaces.PreparationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Substrate Preparation:All active water leaks must be stopped using HydraDry Waterstop (Rapid Setting Plugging Compound) before continuing to the next stage of application.Uneven SurfacesThis includes non-flush pointed brickwork.Remove by suitable means, all loose pointing, any remaining render or plaster, wood, dust, grease, oil, organic growth or other foreign materials that may cause contamination or adversely affect adhesion properties. To create a level surface, Universal Mortar should be applied in line with the relevant data sheet, which is available upon request or can be downloaded from our website. Follow the Universal Mortar priming requirements before application.Level SurfacesIf there is any exposed steel present, apply two coats of suitable corrosion inhibitor to the exposed steel, by brush. Remove all loose material and surface latencies, i.e. dust, oil, grease, corrosion and organic growth, preferably by using wet grit or water blasting techniques. The strength of the concrete sub-base must be a minimum of 25N/mm².Note: Special precautions may be necessary to ensure a continuous waterproof barrier at the wall to floor joints and corner joints. This is to avoid sharp changes of angle in the tanking membrane. The joints should be thoroughly raked out and cleaned prior to an application of Universal Mortar as a Fillet Seal, this should be applied in line with the relevant data sheet.Priming (If Necessary)Using a brush, roller or spray, apply SBR Bonding Agent, mixed 1:1 (by volume) with water.Allow to become tacky to the touch. Approximately 30 minutes time.Mixing:Remove contents from bucket.Shake Polymer B and then let it settle for 10-20 seconds.Pour Polymer B into empty bucket.Using an electric paddle, gradually start to add Powder A into bucket whilst mixing under low shear to reduce dust generation.Add all Powder A and increase mixing shear so vigorous mixing is achieved.Mix for approximately 2 minutes, stop to scrape the powder stuck to the sides of the mixing vessel back into the mix.Mix for a further 1 minute to achieve a uniform, lump free product.Tap water can now be added into bucket, and mixed in, to provide the desired consistency.A maximum of 0.5L of tap water can be added without affecting the crack-bridging properties.Note: The user must not include any additional components of their own into this product, e.g. sand, cement, etc. It will dramatically impact the properties of this product.ApplicationApplication Methods:After mixing HydraFlex has a pot life of 40 minutes.Apply a tight coat of HydraFlex by Tanking Brush, trowel, or roller to a minimum thickness of 1 mm in the first layer.It is essential the first coat is well worked into the substrate, free of entrapped air as far as possible, and is applied in one continuous direction.Allow the first coat sufficient time to cure to a state where it will accept the second layer (approximately 5 hours at standard room temperatures, longer at lower temperatures).HydraFlex can accept light foot traffic after 24hrs.No more than 48 hrs should be allowed between coats.Apply a second coat of HydraFlex at a 90° angle to the first, ensuring complete coverage and a minimum overall thickness of 2mm.Coverage:A 20Kg of HydraFlex Tanking Slurry should cover approximately 6m² based on two coats.Limitations:Substrate and ambient temperature must be over 5°C at time of application and for the following 24 hours.Avoid application in direct sunlight to prevent rapid drying out.Aquatic environments should be finished with Technoseal DPM.Not tested for use in swimming pools or in contact with potable water.If product is used in an external environment it should be covered after 72 hours and not left as the final finish.Gypsum plaster must not be used in direct contact with HydraFlex.Curing & Ventilation:Curing procedures should be strictly adhered to. It is important that the surface of the coating is protected from strong sunlight and drying winds, use either a suitable curing compound or polythene sheeting, for a minimum of 48 hours, if necessary.Overcoating & Finishing:HydraFlex is suitable for overcoating once a certain level of curing has been achieved.Plastering should take place using Renovation Plaster, at least 48-72 hours after the final coat of HydraFlex has been applied.If HydraFlex has been applied as part of a DPC, breathable paint must be used on top of any finish.If redecoration is to occur 12 months after the DPC installation, non-breathable finishes may be considered. However, the moisture content of the plaster and background must be in line with the recommendations of the supplier of the chosen finish.Note: HydraFlex must not be punctured by wall fixings, e.g. dry lining work etc.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4690310135907 shopify_GB_4690310135907_32996946575459 new 114.00 GBP90.12 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/HydraflexAll_grande.jpg?v=1605884379 5060207863368 Wykamol Group WYBW02 Tanking Slurry 20Kg (With Mixing Bucket) US 20.0 kg Wykamol Group Wykamol HydraDry Universal Mortar & Fillet Seal https://www.platinumchemicals.co.uk/products/wykamol-universal-mortar?variant=12615730856035 Wykamol HydraDry Universal Mortar & Fillet Seal is a Thixotropic, Fibre-reinforced, multi-purpose cementitious mortar which can be used as a mortar for waterproofing, levelling and re-profiling. It can also be used as a Fillet Seal at wall to floor, wall to wall and wall to ceiling junctions.Supplied in 25kg Bags inside a Bucket which can be used for mixing, available in Grey colour only.DescriptionWykamol HydraDry Universal MortarWykamol HydraDry Universal Mortar & Fillet Seal is a single component, thixotropic, fibre reinforced, polymer and micro silica modified cementitious mortar which cures rapidly to produce a high performance, fair faced levelling coat, render and profile mortar with enhanced waterproofing properties. Wykamol HydraDry Universal Mortar & Fillet Seal can be used as a mortar for waterproofing, levelling and re-profiling. It can also be used as a Fillet Seal at wall to floor, wall to wall and wall to ceiling junctions.Typical Applications:As a Mortar for waterproofing, levelling and re-profilingAs a Fillet at wall to floor, wall to wall and wall to ceiling junctionsFoundations, slabs, retaining walls etc.Drinking water structuresAs a High build repair mortarProduct Benefits:Factory batched mortar which provides consistent quality.Wide range of applications from a single product.Ideal for use with specialist waterproofing systems such as our Tanking Slurry Products.High bond strength which ensures monolithic performance.Fibre reinforced to give improved tensile and impact strength.Dense matrix provides excellent protection from ingress of acid gases, moisture and chlorides.Suitable for horizontal, vertical and overhead applications.Economic mortar which generally requires no substrate inter-layer priming.PreparationSubstrate Suitability:Wykamol HydraDry Universal Mortar & Fillet Seal can be applied to Concrete, Brick and Structural BlockworkSurface Preparation:Active water leaks must be stopped using Water Stop Plugging Compound prior to application of Wykamol HydraDry Universal Mortar & Fillet Seal.Areas to be levelled, filled or repaired must be clean and free from all unsound materials.For localised repair, saw cut or cut back the extremities of the repair locations to a depth of at least 10mm to avoid feather-edging and to provide a square edge.Break out the complete repair area to a minimum depth of 10mm up to the sawn edge.Brickwork and Blockwork:Remove by suitable means all loose pointing, any remaining render or plaster, wood, dust, grease, oil, organic growth or other foreign materials that may cause contamination or adversely affect adhesion properties.Concrete:If there is any exposed steel present, apply two coats of suitable corrosion inhibitor to the exposed steel by brush.Remove all loose material and surface latencies, i.e. dust, oil, grease, corrosion by products and organic growth, preferably by using wet grit or water blasting techniques or equivalent approved methods. The strength of the concrete sub-base must be a minimum of 20 N/mm².Priming:On all prepared substrates thoroughly dampen the surface with clean water prior to application.If the substrates are of a highly porous nature it is recommended to apply 1 coat application of SBR at a 1:1 dilution with water, allow approximately 1 - 2 hours drying time prior to application of Wykamol HydraDry Universal Mortar & Fillet Seal.Mixing:Place between 3.00 - 3.75 litres of clean water into suitable mixing bucket.Using a slow speed electric paddle mixer (400 - 600rpm), gradually start to add the powder whilst mixing.Ensure all the powder is added.Mix for approx. 3 minutes to achieve a creamy lump free consistency.If required, add a small amount of water to obtain the correct consistency depending on application.ApplicationApplication Methods:Wykamol HydraDry Universal Mortar & Fillet Seal is applied by gloved hand, trowel or suitable spray equipment.As a Fillet Seal Application:Using bricklaying or pointing trowel, apply a minimum 25mm Fillet at wall / floor, wall / wall and if necessary wall / ceiling junctions.Ensure Wykamol HydraDry Universal Mortar & Fillet Seal is pressed firmly into the chase at the wall / floor and joints at wall / wall, whilst still green form a “bottle” cove and feather for 50mm - 100mm along the adjacent surfaces. Achieve a smooth finish to the fillet.Where excessive stress concentrations can be expected at the wall / floor joints it is recommended a dilution of SBR at 1:2 with water used as the gauging solution.By Spray Application:Use traditional wet mortar spraying equipment and processes.On Vertical Surfaces:Wykamol HydraDry Universal Mortar & Fillet Seal is to be applied at a minimum of 5mm up to a maximum of 15mm layer thickness in one working operation.Apply the product by trowel using a standard rendering technique or spray technique ensuring to remove any trapped air. If more than one coat is required to obtain the desired build, ensure that previous layers are well keyed and stable but not fully set prior to application of the subsequent layers.Final profiling to a high quality can easily be achieved using a steel float after allowing the surface to stabilise.Wooden or plastic floats and damp sponges may also be used to achieve the desired surface texture.On Horizontal Surfaces:Place Wykamol HydraDry Universal Mortar & Fillet Seal onto the horizontal surface, compact and strike off to a maximum layer thickness of 50mm.After initial hardening, final profiling can be achieved to a high quality using a steel float or a brushed finish using a broom to increase skid resistant properties.Soffits and Overhead Applications:When using Wykamol HydraDry Universal Mortar & Fillet Seal as a levelling coat, apply at a minimum of 5mm up to a maximum of 10mm layer thickness in one working operation.Apply the product by trowel using standard rendering technique or spray technique ensuring to remove any entrapped air.If more than one coat is required to obtain the desired build, ensure that previous layers are well keyed and stable but not fully set prior to application of subsequent layers.If sagging occurs during application, Wykamol HydraDry Universal Mortar & Fillet Seal should be completely removed and reapplied at a reduced thickness on to a correctly prepared substrate.Localised Repair Applications:Apply Wykamol HydraDry Universal Mortar & Fillet Seal to the prepared substrate by gloved hand or trowel. Care must be taken to ensure that an initial 5mm - 10mm thickness of mortar is well placed and adhered prior to building up to larger depths.Thoroughly compact the mortar on to the prepared substrate and around any exposed reinforcement if present. If necessary, support with shuttering to allow for compaction when working to reveals, etc.The application thickness achievable is dependent upon the substrate.For repairs which require multi-layer application, it is important to ensure that previous layers are well keyed and stable but not fully set prior to the application of subsequent layers. No inter layer priming is required.Final profiling of a high quality can easily be achieved using a steel float after allowing the surface to stabilise.Application Conditions:Do not apply Wykamol HydraDry Universal Mortar & Fillet Seal in temperatures below 5°C and rising or above 35°C (ambient and substrate).Curing:Curing procedures should be strictly adhered to. It is important that the surface of the mortar is protected from strong sunlight and drying winds with either a suitable curing compound, polythene sheeting, damp hessian or similar.Coverage:A 25kg bag of Wykamol HydraDry Universal Mortar & Fillet Seal covers approximately 1.40m² at 10mm thickness.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_1441359069283 shopify_GB_1441359069283_12615730856035 new 45.30 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/UniversalMortar25KgNEW_grande.jpg?v=1623404731 5060207863339 Wykamol Group WYBW03 Tanking Slurry 25Kg Bag in a Bucket US 25.0 kg 0.00 GBP Wykamol Group Wykamol HydraDry Tanking Slurry https://www.platinumchemicals.co.uk/products/hydradry-tanking-slurry?variant=7653633785886 HydraDry Tanking Slurry is a cementitious waterproof slurry which creates a monolithic bond of the crystalline chemicals when applied to concrete structures. HydraDry Tanking Slurry waterproofs against positive and negative hydrostatic heads of water and can be used in applications such as Basements, Cellars, Foundations and Swimming Pools to name a few. HydraDry Tanking Slurry is supported by BBA Certification Certificate No: 02/3961.Supplied in 20kg Bags inside a Bucket which can be used for mixing, available in Grey colour only.DescriptionHydraDry Tanking SlurryWhen HydraDry Tanking Slurry is mixed with clean water and applied correctly, it forms a permanent waterproof coating to the concrete and masonry and is easily applied by brush, roller or spray.HydraDry Tanking Slurry waterproofs against positive and negative hydrostatic heads of water and is suitable for use, internally, externally, above and below ground.HydraDry Tanking slurry is also ideal for use for in damp-proofing applications.Typical Applications:HydraDry Tanking Slurry is used for the waterproofing of:BasementsCellarsFoundationsSwimming PoolsConcreteRendersBrickworkBlock Work StructuresLining Water Tanks, Pools and Planters etc.Internal & External Applications, Above and Below GroundProduct Benefits:BBA ApprovedPermanent Waterproofing for Concrete & MasonryResists Positive & Negative Water PressureSuperior Bond StrengthResists Salt Contamination in MasonrySuitable for Internal & External UseSuitable for use Above & Below Ground LevelSafe to use in contact with Potable WaterEasy to use, Brush, Roller or Spray AppliedPreparationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Surface Preparation:All surfaces must be free from existing coatings or contamination i.e. paint, laitance, dirt etc.All joints must be flush pointed, defects made good and irregular surfaces must be given a trowelled or floated finish with Universal Mortar.If the surface is dry, thoroughly dampen the surface with water prior to application to aid adhesion.If the surface is of a highly porous nature it is recommended to apply a 1 coat application of SBR at a 1:3 dilution with water, allow approximately. 2 hours drying time prior to application of HydraDry Tanking Slurry.Remove all free standing water before application.Cracks and bolt holes must be cut out and filled solid with Water Stop Plugging Compount prior to the application of HydraDry Tanking Slurry.Substrates contaminated with high levels of soil or ground water sulphates may require attention.Mixing:The consistency of HydraDry Tanking Slurry can be varied to suit the application method.Recommended Water AdditionsPack SizeBrush AppliedTrowel AppliedSpray Applied20Kg Bucket4.8 - 5.6 Litres3.7 - 4.5 Litres4.2 - 5 Litres ApplicationApplication Methods:Brush Applied or Trowel Application:Place the recommended amount of clean water into suitable mixing bucket.Using a slow speed electric paddle mixer (400-600 rpm), gradually start to add the powder whilst mixing.Ensure all the powder is added.Mix for approximately 3 minutes to achieve a creamy lump free consistency.If required, add small amount of water to obtain the correct consistency depending on application.Spray Application:Use traditional wet mortar spraying equipment and processes.HydraDry Tanking Slurry is a minimum 2 coat application system.Once mixed, HydraDry Tanking Slurry has a 30 minute pot life at 20°C.Minimum Layer Thickness1st Coat2nd CoatTotal Thickness (After 2 Coats)1.0mm1.0mm2.0mmBrush Applied Slurry: HydraDry Tanking Slurry in even layers using a stiff bristled brush or broom on vertical surfaces and a rubber squeegee or stiff bristled brush / broom for horizontal surfaces.It is essential the first coat is brushed well into the surface to ensure a good bond with the substrate. Allow the first coat to set firm (2-16 hours).Apply a second coat of HydraDry Tanking Slurry as soon as the first coat has hardened. Apply the second coat at 90° angle to the first coat.Floors: Special precautions may be necessary to ensure a continuous waterproof barrier at the wall to floor joints and corner joints to avoid sharp changes of angle in the tanking membrane. The joints should be thoroughly raked out, cleaned and wetted prior to application of Universal Mortar.Ground Level: Where basement walls finished above the external ground level, the tanking should link up with an effective damp proof course. If basement ceilings are below ground level, the ceiling should also be coated with HydraDry Tanking Slurry.Coverage:A 20Kg of HydraDry Tanking Slurry should cover approximately 6m² based on two coats.Limitations:Do not apply HydraDry Tanking Slurry to substrates with temperatures below 5°C or if the ambient temperature is below 5°C or expected to fall below 5°C within 24 hours.Avoid application in direct sunlight.When applying to environments that will contain aquatic life, such as ponds, always finish with DampSeal Damp Proof Paint.Curing & Ventilation:Do not allow HydraDry Tanking Slurry to dry out too rapidly. After initial set, moist curing is recommended.Fine mist spray the treated area 3 to 4 times daily for a 48 hour period.It is recommended that ventilation is provided, as a lack of ventilation may cause condensation to form on the surface of HydraDry Tanking Slurry.Protect the coating from excessively fast evaporation in hot conditions or drying winds. If these conditions prevail, fine mist spray the surface regularly.FinishingFinishing Method:HydraDry Tanking Slurry is suitable for over coating once correctly and thoroughly cured.Plastering should take place using Renovation Plaster, Universal Mortar or a 1:3 cement : sand plaster with RenderProof incorporated in to protect Tanking Slurry from impact damage.Application should be carried out within two days of the final coat being applied.Gypsum plasters must not be used in direct contact with HydraDry Tanking Slurry.HydraDry Tanking Slurry must not be punctured by wall fixings (e.g. Dry lining work etc.) and a period of 6 months should be allowed before permanent decoration is considered. During this period only use permeable emulsion paints for final decoration purposes.Avoid using impermeable decorative finishes.Data SheetsTechnical Data SheetWykamol Tanking Slurry User GuideSafety Data SheetBBA Certificate shopify_GB_552125431838 shopify_GB_552125431838_7653633785886 new 44.10 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/HYDRADRY_TANKING_SLURRY_grande.jpg?v=1543408500 5060207860536 Wykamol Group WYBW01 Tanking Slurry 20Kg Bag in a Bucket US 20.0 kg 0.00 GBP Wykamol Group Wykamol Floor Drain Channel https://www.platinumchemicals.co.uk/products/wykamol-floor-drain-channel?variant=33354624958563 Wykamol Floor Drain Channel is a PVC drainage conduit used to connect the perimeter Waterguard Channel to the sump via the Waterguard T-Piece.Supplied in 2 Metre Lengths.Our full range of Wykamol Waterguard Channel Products can be found here.DescriptionWykamol Floor Drain ChannelWykamol Floor Drain Channel is a PVC drainage conduit used to connect the perimeter Waterguard Channel to the sump via the Waterguard T-Piece.As it does not contain the upstand, Wykamol Floor Drain Channel may also be used to replace Waterguard Drainage Channel at door thresholds.Benefits:Quick and easy to installPre-drilled drainage holes.Tough and durable.Part of a complete Type C cavity drain membrane system for waterproofing below-ground structures in line with BS8102:2009InstallationApplication Method:For detailed information on the installation of the Wykamol Waterguard System, please view the Installation Section on the Waterguard Drainage Channel, found here.Data SheetsWykamol Waterguard Drainage Channel BrochureWykamol Waterproofing & Gas Protection GuideWykamol Cavity Drain Membrane Installation Guide shopify_GB_4766168121443 shopify_GB_4766168121443_33354624958563 new 20.82 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WykamolFloorDrainChannel_grande.jpg?v=1609246536 Wykamol Group WYWG41FD Basement Drainage Systems 2 Metre Length US 2.5 kg Wykamol Group Wykamol EP40 - Two Part Epoxy Floor Paint Coating System https://www.platinumchemicals.co.uk/products/ep40-epoxy-floor-damp-proof-paint?variant=7653647515678 EP40 Epoxy Floor Paint Coating System is a water based, easy to apply Epoxy Floor Coating system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Floor Paint FINISH COAT.EP40 Epoxy Floor Paint Coating System can be used on concrete floors in a variety of commercial and industrial environments, such as Industrial Plants, Commercial and Retail Stores, Warehouses etc...The EP40 Epoxy Floor Paint PRIMER is supplied in 5kg (Two-Part) Packs, available in Clear colour only.The EP40 Epoxy Floor Paint FINISH COAT is supplied in 5kg (Two-Part) Packs, available in Grey and Clear colours.DescriptionEP40 Epoxy Floor Paint Coating SystemThe EP40 Epoxy Floor Coating System is a water based, easy to apply system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Paint FINISH COAT.EP40 Epoxy Floor Paint Primer is designed to soak into the substrate, block pores, improve adhesion and ensure an even, high quality finish.After the final application of EP40 Epoxy Floor Paint Finish Coat, floors become easier to clean with a hard-wearing, dustfree, waterproof, impervious finish and are substantially more resistant to damage by fork-lift trucks, chemicals, fuels and lubricants.Product Uses:Over concrete floors in a variety of commercial and industrial environments, such as:Industrial PlantsCommercial and Retail StoresWarehousesHospitalsShowroomsGaragesGymnasiumsIndustrial Food Preparation AreasProduct Benefits:Can Be Applied to Green Concrete After 7 Days.Ideal for Areas in Contact With Vehicles Such as Forklifts and Lorries.Ideal for Areas With High Foot Traffic.Excellent Adhesion to Concrete and Wood.Floor Becomes Easier to Clean Due to the Impervious Finish.Makes the Substrate Substantially More Resistant to Chemicals, Fuels and Lubricants.Provides Attractive, Dust-Free Finish.Can Be Used Internally and Externally.Can Be Used as a Liquid DPM (Damp-Proofing Membrane) at Ground Level.ApplicationSubstrate Preparation:All substrates should be dry, clean and free from laitance, oil, grease and other contaminants.Ideally, concrete surfaces should be vacuum shot-blasted or mechanically abraded (grinding) to both clean and open the surface, providing good mechanical key.Please Note: Following sufficient substrate preparation, EP40 Epoxy Floor Paint  Primer should always be applied prior to the application of either the Grey or Clear Finish Coat.Substrate humidity should be ≤ 80% before application commences.The concrete sub-base must be ≥ 25 N/mm² as per BS 8204-6.The sub-base must be level and have no more than 5mm undulations. If floor unevenness is significant a polymer modified C35 screed can be used to level.Mixing:EP40 Epoxy Floor Primer and EP40 Epoxy Finish Coat are both made by combining two components: Part A and Part B.The Part A container is large enough to act as a mixing vessel when combining Part A and Part B.By hand, thoroughly mix both Part A and Part B in their own vessels before combining. Add the entire contents of Part B to the entire contents of the Part A vessel and mix nthoroughly.Ideally, use a mechanical mixer under low shear to combine, ensuring minimal air entrapment. Do not allow mixture to sit for any considerable amount of time before applying, as it will begin to harden.Application:EP40 Epoxy Floor PRIMERUsing a stiff brush or roller, work the product into the substrate, ensuring all areas are completely covered.Allow to cure for at least 12 hours prior to applying a second coat of primer or EP40 Epoxy Finish Coat. If atmospheric or substrate temperatures are below 20°C, allow for a longer initial curing time. Product should be just tack free.Depending on porosity and texture of substrate, 2 coats may be necessary.Do not allow Primer to fully cure - do not allow curing time to exceed 36 hours before applying a 2nd coat of Primer or Finish Coat.EP40 Epoxy FINISH COATWhen using EP40 Epoxy Finish Coat in clear, perform a small test application in an inconspicuous area, to ensure the finish is as desired.One coat of EP40 Epoxy Finish Coat in clear or grey can be applied with a brush or roller, aiming for a continuous coating.Spread the product as thinly as possible while achieveing maximum coverage. Ensure no pooling or excess product remains.Only 1 application of EP40 Epoxy Finish Coat is necessary for areas which will experience light traffic, such as school corridors. 2 coats should be applied in areas of medium traffic, such as warehouses.Achieving Slip ResistanceSlip resistance can be improved by scattering anti-slip aggregates onto the EP40 Epoxy Finish Coat, whilst still wet, and back rolling at a rate of 75g/m². Following initial cure (16 - 24 hours), apply a second coat of EP40 Epoxy Finish Coat to secure the aggregates.Conditions & Limitations:ONLY apply system at temperatures between 10°C and 30°C. Applying at temperatures under 10°C will significantly inhibit curing.DO NOT apply to substrates, or in atmospheric conditions, with > 80% humidity.DO NOT use any kind of steam cleaning on the treated surface, even after full cure.DO NOT subject EP40 Epoxy Floor Coating System to high levels of UV light, even after full cure.DO NOT use on floors experiencing hydrostatic pressure from groundwater.Note: EP40 Epoxy Floor Coating System is not suitable as a continuous waterproof coating for blockwork due to the texture of the substrate. It will, however, provide a wearing surface.Coverage:Up to 8m² per 1Kg, depending on substrate porosity and roughness.Data SheetsTechnical Data SheetSafety Data Sheet - FINISH COAT GREY Part ASafety Data Sheet - FINISH COAT GREY Part BSafety Data Sheet - FINISH COAT CLEAR Part ASafety Data Sheet - FINISH COAT CLEAR Part BSafety Data Sheet - PRIMER CLEAR Part ASafety Data Sheet - PRIMER CLEAR Part B shopify_GB_552128610334 shopify_GB_552128610334_7653647515678 new 68.04 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/EP40_CLEAR_grande.jpg?v=1580723523 Wykamol Group WYBW32C Epoxy Floor Paint 5kg US 5.0 kg Wykamol Group Wykamol EP40 - Two Part Epoxy Floor Paint Coating System https://www.platinumchemicals.co.uk/products/ep40-epoxy-floor-damp-proof-paint?variant=30602016817251 EP40 Epoxy Floor Paint Coating System is a water based, easy to apply Epoxy Floor Coating system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Floor Paint FINISH COAT.EP40 Epoxy Floor Paint Coating System can be used on concrete floors in a variety of commercial and industrial environments, such as Industrial Plants, Commercial and Retail Stores, Warehouses etc...The EP40 Epoxy Floor Paint PRIMER is supplied in 5kg (Two-Part) Packs, available in Clear colour only.The EP40 Epoxy Floor Paint FINISH COAT is supplied in 5kg (Two-Part) Packs, available in Grey and Clear colours.DescriptionEP40 Epoxy Floor Paint Coating SystemThe EP40 Epoxy Floor Coating System is a water based, easy to apply system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Paint FINISH COAT.EP40 Epoxy Floor Paint Primer is designed to soak into the substrate, block pores, improve adhesion and ensure an even, high quality finish.After the final application of EP40 Epoxy Floor Paint Finish Coat, floors become easier to clean with a hard-wearing, dustfree, waterproof, impervious finish and are substantially more resistant to damage by fork-lift trucks, chemicals, fuels and lubricants.Product Uses:Over concrete floors in a variety of commercial and industrial environments, such as:Industrial PlantsCommercial and Retail StoresWarehousesHospitalsShowroomsGaragesGymnasiumsIndustrial Food Preparation AreasProduct Benefits:Can Be Applied to Green Concrete After 7 Days.Ideal for Areas in Contact With Vehicles Such as Forklifts and Lorries.Ideal for Areas With High Foot Traffic.Excellent Adhesion to Concrete and Wood.Floor Becomes Easier to Clean Due to the Impervious Finish.Makes the Substrate Substantially More Resistant to Chemicals, Fuels and Lubricants.Provides Attractive, Dust-Free Finish.Can Be Used Internally and Externally.Can Be Used as a Liquid DPM (Damp-Proofing Membrane) at Ground Level.ApplicationSubstrate Preparation:All substrates should be dry, clean and free from laitance, oil, grease and other contaminants.Ideally, concrete surfaces should be vacuum shot-blasted or mechanically abraded (grinding) to both clean and open the surface, providing good mechanical key.Please Note: Following sufficient substrate preparation, EP40 Epoxy Floor Paint  Primer should always be applied prior to the application of either the Grey or Clear Finish Coat.Substrate humidity should be ≤ 80% before application commences.The concrete sub-base must be ≥ 25 N/mm² as per BS 8204-6.The sub-base must be level and have no more than 5mm undulations. If floor unevenness is significant a polymer modified C35 screed can be used to level.Mixing:EP40 Epoxy Floor Primer and EP40 Epoxy Finish Coat are both made by combining two components: Part A and Part B.The Part A container is large enough to act as a mixing vessel when combining Part A and Part B.By hand, thoroughly mix both Part A and Part B in their own vessels before combining. Add the entire contents of Part B to the entire contents of the Part A vessel and mix nthoroughly.Ideally, use a mechanical mixer under low shear to combine, ensuring minimal air entrapment. Do not allow mixture to sit for any considerable amount of time before applying, as it will begin to harden.Application:EP40 Epoxy Floor PRIMERUsing a stiff brush or roller, work the product into the substrate, ensuring all areas are completely covered.Allow to cure for at least 12 hours prior to applying a second coat of primer or EP40 Epoxy Finish Coat. If atmospheric or substrate temperatures are below 20°C, allow for a longer initial curing time. Product should be just tack free.Depending on porosity and texture of substrate, 2 coats may be necessary.Do not allow Primer to fully cure - do not allow curing time to exceed 36 hours before applying a 2nd coat of Primer or Finish Coat.EP40 Epoxy FINISH COATWhen using EP40 Epoxy Finish Coat in clear, perform a small test application in an inconspicuous area, to ensure the finish is as desired.One coat of EP40 Epoxy Finish Coat in clear or grey can be applied with a brush or roller, aiming for a continuous coating.Spread the product as thinly as possible while achieveing maximum coverage. Ensure no pooling or excess product remains.Only 1 application of EP40 Epoxy Finish Coat is necessary for areas which will experience light traffic, such as school corridors. 2 coats should be applied in areas of medium traffic, such as warehouses.Achieving Slip ResistanceSlip resistance can be improved by scattering anti-slip aggregates onto the EP40 Epoxy Finish Coat, whilst still wet, and back rolling at a rate of 75g/m². Following initial cure (16 - 24 hours), apply a second coat of EP40 Epoxy Finish Coat to secure the aggregates.Conditions & Limitations:ONLY apply system at temperatures between 10°C and 30°C. Applying at temperatures under 10°C will significantly inhibit curing.DO NOT apply to substrates, or in atmospheric conditions, with > 80% humidity.DO NOT use any kind of steam cleaning on the treated surface, even after full cure.DO NOT subject EP40 Epoxy Floor Coating System to high levels of UV light, even after full cure.DO NOT use on floors experiencing hydrostatic pressure from groundwater.Note: EP40 Epoxy Floor Coating System is not suitable as a continuous waterproof coating for blockwork due to the texture of the substrate. It will, however, provide a wearing surface.Coverage:Up to 8m² per 1Kg, depending on substrate porosity and roughness.Data SheetsTechnical Data SheetSafety Data Sheet - FINISH COAT GREY Part ASafety Data Sheet - FINISH COAT GREY Part BSafety Data Sheet - FINISH COAT CLEAR Part ASafety Data Sheet - FINISH COAT CLEAR Part BSafety Data Sheet - PRIMER CLEAR Part ASafety Data Sheet - PRIMER CLEAR Part B shopify_GB_552128610334 shopify_GB_552128610334_30602016817251 new 62.40 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/EP40_PRIMER_grande.jpg?v=1580723540 Wykamol Group WYBW32P Epoxy Floor Paint 5kg US 5.0 kg Wykamol Group Wykamol EP40 - Two Part Epoxy Floor Paint Coating System https://www.platinumchemicals.co.uk/products/ep40-epoxy-floor-damp-proof-paint?variant=7653647482910 EP40 Epoxy Floor Paint Coating System is a water based, easy to apply Epoxy Floor Coating system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Floor Paint FINISH COAT.EP40 Epoxy Floor Paint Coating System can be used on concrete floors in a variety of commercial and industrial environments, such as Industrial Plants, Commercial and Retail Stores, Warehouses etc...The EP40 Epoxy Floor Paint PRIMER is supplied in 5kg (Two-Part) Packs, available in Clear colour only.The EP40 Epoxy Floor Paint FINISH COAT is supplied in 5kg (Two-Part) Packs, available in Grey and Clear colours.DescriptionEP40 Epoxy Floor Paint Coating SystemThe EP40 Epoxy Floor Coating System is a water based, easy to apply system which consists of the EP40 Epoxy Floor Paint PRIMER and the EP40 Epoxy Paint FINISH COAT.EP40 Epoxy Floor Paint Primer is designed to soak into the substrate, block pores, improve adhesion and ensure an even, high quality finish.After the final application of EP40 Epoxy Floor Paint Finish Coat, floors become easier to clean with a hard-wearing, dustfree, waterproof, impervious finish and are substantially more resistant to damage by fork-lift trucks, chemicals, fuels and lubricants.Product Uses:Over concrete floors in a variety of commercial and industrial environments, such as:Industrial PlantsCommercial and Retail StoresWarehousesHospitalsShowroomsGaragesGymnasiumsIndustrial Food Preparation AreasProduct Benefits:Can Be Applied to Green Concrete After 7 Days.Ideal for Areas in Contact With Vehicles Such as Forklifts and Lorries.Ideal for Areas With High Foot Traffic.Excellent Adhesion to Concrete and Wood.Floor Becomes Easier to Clean Due to the Impervious Finish.Makes the Substrate Substantially More Resistant to Chemicals, Fuels and Lubricants.Provides Attractive, Dust-Free Finish.Can Be Used Internally and Externally.Can Be Used as a Liquid DPM (Damp-Proofing Membrane) at Ground Level.ApplicationSubstrate Preparation:All substrates should be dry, clean and free from laitance, oil, grease and other contaminants.Ideally, concrete surfaces should be vacuum shot-blasted or mechanically abraded (grinding) to both clean and open the surface, providing good mechanical key.Please Note: Following sufficient substrate preparation, EP40 Epoxy Floor Paint  Primer should always be applied prior to the application of either the Grey or Clear Finish Coat.Substrate humidity should be ≤ 80% before application commences.The concrete sub-base must be ≥ 25 N/mm² as per BS 8204-6.The sub-base must be level and have no more than 5mm undulations. If floor unevenness is significant a polymer modified C35 screed can be used to level.Mixing:EP40 Epoxy Floor Primer and EP40 Epoxy Finish Coat are both made by combining two components: Part A and Part B.The Part A container is large enough to act as a mixing vessel when combining Part A and Part B.By hand, thoroughly mix both Part A and Part B in their own vessels before combining. Add the entire contents of Part B to the entire contents of the Part A vessel and mix nthoroughly.Ideally, use a mechanical mixer under low shear to combine, ensuring minimal air entrapment. Do not allow mixture to sit for any considerable amount of time before applying, as it will begin to harden.Application:EP40 Epoxy Floor PRIMERUsing a stiff brush or roller, work the product into the substrate, ensuring all areas are completely covered.Allow to cure for at least 12 hours prior to applying a second coat of primer or EP40 Epoxy Finish Coat. If atmospheric or substrate temperatures are below 20°C, allow for a longer initial curing time. Product should be just tack free.Depending on porosity and texture of substrate, 2 coats may be necessary.Do not allow Primer to fully cure - do not allow curing time to exceed 36 hours before applying a 2nd coat of Primer or Finish Coat.EP40 Epoxy FINISH COATWhen using EP40 Epoxy Finish Coat in clear, perform a small test application in an inconspicuous area, to ensure the finish is as desired.One coat of EP40 Epoxy Finish Coat in clear or grey can be applied with a brush or roller, aiming for a continuous coating.Spread the product as thinly as possible while achieveing maximum coverage. Ensure no pooling or excess product remains.Only 1 application of EP40 Epoxy Finish Coat is necessary for areas which will experience light traffic, such as school corridors. 2 coats should be applied in areas of medium traffic, such as warehouses.Achieving Slip ResistanceSlip resistance can be improved by scattering anti-slip aggregates onto the EP40 Epoxy Finish Coat, whilst still wet, and back rolling at a rate of 75g/m². Following initial cure (16 - 24 hours), apply a second coat of EP40 Epoxy Finish Coat to secure the aggregates.Conditions & Limitations:ONLY apply system at temperatures between 10°C and 30°C. Applying at temperatures under 10°C will significantly inhibit curing.DO NOT apply to substrates, or in atmospheric conditions, with > 80% humidity.DO NOT use any kind of steam cleaning on the treated surface, even after full cure.DO NOT subject EP40 Epoxy Floor Coating System to high levels of UV light, even after full cure.DO NOT use on floors experiencing hydrostatic pressure from groundwater.Note: EP40 Epoxy Floor Coating System is not suitable as a continuous waterproof coating for blockwork due to the texture of the substrate. It will, however, provide a wearing surface.Coverage:Up to 8m² per 1Kg, depending on substrate porosity and roughness.Data SheetsTechnical Data SheetSafety Data Sheet - FINISH COAT GREY Part ASafety Data Sheet - FINISH COAT GREY Part BSafety Data Sheet - FINISH COAT CLEAR Part ASafety Data Sheet - FINISH COAT CLEAR Part BSafety Data Sheet - PRIMER CLEAR Part ASafety Data Sheet - PRIMER CLEAR Part B shopify_GB_552128610334 shopify_GB_552128610334_7653647482910 new 68.04 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/EP40_GREY_grande.jpg?v=1580723528 Wykamol Group WYBW32G Epoxy Floor Paint 5kg US 5.0 kg Wykamol Group Wykamol Enviroseal Masonry Water Repellent https://www.platinumchemicals.co.uk/products/enviroseal-masonry-water-repellent?variant=7653390581790 Enviroseal is an effective masonry water repellent liquid based on a solvent-free silicone/siloxane emulsion for use above ground on a wide range of exterior surfaces.Available in 5 Litre and 25 Litre Containers. Ready to Use Product.DescriptionEnviroseal Masonry Water RepellentEnviroseal is an effective masonry water repellent liquid based on a solvent-free silicone/siloxane emulsion for use above ground on porous brickwork, cement renderings, asbestos, cement/mineral boards, unglazed tiles, cast concrete, roughcast, stonework (including calcareous materials, i.e. those containing limestone), wood, canvas and leather.Surfaces treated with Enviroseal masonry water repellent remain permeable to vapour so that moisture within the structure does not remain trapped.Enviroseal is clear and colourless and will not normally alter the appearance of treated surfaces. In some circumstances, however, very slight darkening may occur.Note: Enviroseal is NOT a dust-proofing sealer or a damp-proofing membrane.Product Benefits:Highly penetrating.Low odour.May be applied by brush or low pressure spray.Will shed waterborne dirt and reduce surface contamination.Improves insulation by keeping surfaces dry.Colourless, and non staining.Vapour permeable (allows the surface to breath).Becomes effective immediately after drying (approximately 3 hours).May be over-coated at a later date with decorative paints.Conforms to the performance requirements of BS 6477:1992 for substrate groups I and II.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Substrates should be prepared by cleaning to remove all surface contaminants, including fungal / mould growths. Contaminated areas should be treated with one of our Masonry Fungicide product or a Moss & Algae Cleaner.Mould release agents or decorative paints should be removed completely.Structural defects, particularly mortar joints, repointing or rendering must be made good and allowed to cure for at least 1 month before treatment. Enviroseal will not prevent ingress of water through cracks or defective joints.If sandblasting / microblasting are carried out, ensure that the surface is hosed down with water extremely thoroughly. Repeat twice. Allow to dry. This is to ensure that the pores within the stone are not blocked with sand which may affect the application and Enviroseal.Surfaces must be substantially dry before application of Enviroseal, and it is recommended that Treatment is carried out following a period of dry weather. Nonabsorbent surfaces should be treated.Where backings are heavily contaminated with salts, there is an increased risk of spalling of surfaces treated with water repellents. The application of Enviroseal is not recommended under these circumstances.Protect surfaces liable to be splashed during treatment, especially glass window panes, UPVC window frames and decorative coatings (See our Glass Protector Films).Application Method:Apply two coats of Enviroseal liberally to the prepared surface using a large brush, lambswool roller or low pressure pneumatic spray equipment.Take care to ensure no excessive overspray occurs and avoid inhalation during application. In exceptional circumstances a further coat may be necessary.Allow at least 2 hours between coats and do not apply to surfaces affected by rain or frost.Any overspray should be removed with silicone cleaner. Treated surfaces may be overpainted with masonry paints after approximately 1 week.Coverage:Coverage will depend upon the porosity of the surface to be treated.Typical consumption is 4-5m² per litre per coat, this may be reduced to 2m² per litre on highly absorbent surfaces.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552086274078 shopify_GB_552086274078_7653390581790 new 21.36 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/ENVIROSEAL_5L_grande.jpg?v=1538490241 5060207860024 Wykamol Group WYWR05 Water Repellent 5 Litres US 5.0 kg 0.00 GBP Wykamol Group Wykamol Enviroseal Masonry Water Repellent https://www.platinumchemicals.co.uk/products/enviroseal-masonry-water-repellent?variant=7664593403934 Enviroseal is an effective masonry water repellent liquid based on a solvent-free silicone/siloxane emulsion for use above ground on a wide range of exterior surfaces.Available in 5 Litre and 25 Litre Containers. Ready to Use Product.DescriptionEnviroseal Masonry Water RepellentEnviroseal is an effective masonry water repellent liquid based on a solvent-free silicone/siloxane emulsion for use above ground on porous brickwork, cement renderings, asbestos, cement/mineral boards, unglazed tiles, cast concrete, roughcast, stonework (including calcareous materials, i.e. those containing limestone), wood, canvas and leather.Surfaces treated with Enviroseal masonry water repellent remain permeable to vapour so that moisture within the structure does not remain trapped.Enviroseal is clear and colourless and will not normally alter the appearance of treated surfaces. In some circumstances, however, very slight darkening may occur.Note: Enviroseal is NOT a dust-proofing sealer or a damp-proofing membrane.Product Benefits:Highly penetrating.Low odour.May be applied by brush or low pressure spray.Will shed waterborne dirt and reduce surface contamination.Improves insulation by keeping surfaces dry.Colourless, and non staining.Vapour permeable (allows the surface to breath).Becomes effective immediately after drying (approximately 3 hours).May be over-coated at a later date with decorative paints.Conforms to the performance requirements of BS 6477:1992 for substrate groups I and II.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Substrates should be prepared by cleaning to remove all surface contaminants, including fungal / mould growths. Contaminated areas should be treated with one of our Masonry Fungicide product or a Moss & Algae Cleaner.Mould release agents or decorative paints should be removed completely.Structural defects, particularly mortar joints, repointing or rendering must be made good and allowed to cure for at least 1 month before treatment. Enviroseal will not prevent ingress of water through cracks or defective joints.If sandblasting / microblasting are carried out, ensure that the surface is hosed down with water extremely thoroughly. Repeat twice. Allow to dry. This is to ensure that the pores within the stone are not blocked with sand which may affect the application and Enviroseal.Surfaces must be substantially dry before application of Enviroseal, and it is recommended that Treatment is carried out following a period of dry weather. Nonabsorbent surfaces should be treated.Where backings are heavily contaminated with salts, there is an increased risk of spalling of surfaces treated with water repellents. The application of Enviroseal is not recommended under these circumstances.Protect surfaces liable to be splashed during treatment, especially glass window panes, UPVC window frames and decorative coatings (See our Glass Protector Films).Application Method:Apply two coats of Enviroseal liberally to the prepared surface using a large brush, lambswool roller or low pressure pneumatic spray equipment.Take care to ensure no excessive overspray occurs and avoid inhalation during application. In exceptional circumstances a further coat may be necessary.Allow at least 2 hours between coats and do not apply to surfaces affected by rain or frost.Any overspray should be removed with silicone cleaner. Treated surfaces may be overpainted with masonry paints after approximately 1 week.Coverage:Coverage will depend upon the porosity of the surface to be treated.Typical consumption is 4-5m² per litre per coat, this may be reduced to 2m² per litre on highly absorbent surfaces.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552086274078 shopify_GB_552086274078_7664593403934 new 65.52 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/ENVIROSEAL_25L_grande.jpg?v=1538490247 5060207860031 Wykamol Group WYWR06 Water Repellent 25 Litres US 25.0 kg 0.00 GBP Wykamol Group Wykamol Enviroseal (Concentrate) Masonry Water Repellent https://www.platinumchemicals.co.uk/products/enviroseal-concentrate-masonry-water-repellent?variant=30343877787747 Enviroseal (Concentrate) is an effective concentrated masonry water repellent liquid product based on a solvent-free silicone/siloxane emulsion, for use above ground on a wide range of exterior surfaces.Supplied in 2 Litre Containers, Concentrated Solution, dilutes to make up to 25 Litres of Ready-to-use product.DescriptionEnviroseal (Concentrate) Masonry Water RepellentEnviroseal (Concentrate) is an effective concentrated masonry water repellent based on a solvent-free silicone/siloxane emulsion. Enviroseal (Concentrate) must be diluted with clean water prior to use and is suitable for use above ground on porous brickwork, cement renderings, asbestos, cement/mineral boards, unglazed tiles, cast concrete, roughcast, stonework (including calcareous materials, i.e. those containing limestone), wood, canvas and leather.Once diluted with water, surfaces treated with Enviroseal Masonry Water Repellent remain permeable to vapour so that moisture within the structure does not remain trapped.Once dried, Enviroseal is clear and colourless and will not normally alter the appearance of treated surfaces. In some circumstances, however, very slight darkening may occur.Note: Enviroseal is NOT a dust-proofing sealer or a damp-proofing membrane.Product Benefits:Concentrated Solution - Dilutes to make 25 Litres.Highly penetrating.Low odour.May be applied by brush or low pressure spray.Will shed waterborne dirt and reduce surface contamination.Improves insulation by keeping surfaces dry.Colourless, and non staining.Vapour permeable (allows the surface to breath).Becomes effective immediately after drying (approximately 3 hours).May be over-coated at a later date with decorative paints.Conforms to the performance requirements of BS 6477:1992 for substrate groups I and II.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Substrates should be prepared by cleaning to remove all surface contaminants, including fungal / mould growths. Contaminated areas should be treated with one of our Masonry Fungicide product or a Moss & Algae Cleaner.Mould release agents or decorative paints should be removed completely.Structural defects, particularly mortar joints, repointing or rendering must be made good and allowed to cure for at least 1 month before treatment. Enviroseal will not prevent ingress of water through cracks or defective joints.If sandblasting / microblasting are carried out, ensure that the surface is hosed down with water extremely thoroughly. Repeat twice. Allow to dry. This is to ensure that the pores within the stone are not blocked with sand which may affect the application and Enviroseal.Surfaces must be substantially dry before application of Enviroseal, and it is recommended that Treatment is carried out following a period of dry weather. Nonabsorbent surfaces should be treated.Where backings are heavily contaminated with salts, there is an increased risk of spalling of surfaces treated with water repellents. The application of Enviroseal is not recommended under these circumstances.Protect surfaces liable to be splashed during treatment, especially glass window panes, UPVC window frames and decorative coatings (See our Glass Protector Films).Application Method:Dilute 2 Litres of Enviroseal (Concentrate) with 23 Litres of clean water to make 25 Litres and mix well.Apply two coats of Enviroseal liberally to the prepared surface using a large brush, lambswool roller or low pressure pneumatic spray equipment.Take care to ensure no excessive overspray occurs and avoid inhalation during application. In exceptional circumstances a further coat may be necessary.Allow at least 2 hours between coats and do not apply to surfaces affected by rain or frost.Any overspray should be removed with silicone cleaner. Treated surfaces may be overpainted with masonry paints after approximately 1 week.Coverage:Coverage will depend upon the porosity of the surface to be treated.Typical consumption is 4-5m² per litre per coat, this may be reduced to 2m² per litre on highly absorbent surfaces.Data SheetsEnviroseal (Concentrate), once diluted, is exactly the same products as Standard Enviroseal, therefore the 'Enviroseal Technical Data Sheet' will apply to both products.Technical Data SheetSafety Data Sheet shopify_GB_4173471744099 shopify_GB_4173471744099_30343877787747 new 50.10 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/ENVIROSEAL_CONCENTRATE_grande.jpg?v=1605883877 Wykamol Group WYWR08 Water Repellent 2 Litre (Concentrate) US 2.0 kg Wykamol Group Wykamol Dryseal Masonry Waterproofing Cream https://www.platinumchemicals.co.uk/products/dryseal-masonry-waterproofer-cream?variant=7653386321950 Dryseal Masonry Waterproofing Cream is a BBA Approved, one coat application, Water Repellent Cream used for the treatment of Penetrating Damp in external masonry.Dryseal Masonry Waterproofing Cream has been formulated to penetrate as deeply as possible into porous masonry substrates providing optimal protection against the absorption of water and pollutants as well as frost and salt damage.Supplied in 3 Litre Buckets.  Dryseal Masonry Waterproofing Cream is supported by BBA Certification Certificate No: 19/5631.DescriptionDryseal Masonry Waterproofing CreamWith its unique thixotropic consistency and excellent water repellent properties on a range of building materials, Dryseal Masonry Waterproofing Cream stands out.As opposed to conventional liquid products, Dryseal can be applied in just one working operation to achieve the desired loadings for maximum effectiveness.Dependent on porosity, the effective siloxane ingredient penetrates the substrate within a short time (30 minutes to several hours) where it reacts to become a polymer silicone resin.The initial white layer disappears completely and, since the effective ingredient is the same as in conventional liquid water repellents, substrates treated with Dryseal remain permeable to water vapour (allow the structure to ‘breathe’).Dryseal has been formulated to penetrate as deeply as possible into porous masonry substrates and this provides optimal protection against the absorption of water and pollutants as well as frost/salt damage.This effect should not be confused with the "beading" effect often associated with water repellents.The beading effect demonstrates the surface action of a water repellent but may not be significant when assessing a product’s overall performance (resistance to rainwater penetration under wind pressure).Product Benefits:BBA ApprovedExcellent penetrationAlkali resistantCompatible with damp substratesRemain permeable to water vapour, allowing the structure to ‘breathe’Good coating propertiesAqueous formulation, low environmental impactThixotropic – multi-coat performance in one applicationApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Dryseal is especially useful for treating cementitious materials including concrete blockwork as well as natural stone, clay and sand/lime bricks etc. The substrate must be in sound condition.Structural defects such as cracks, open joints, etc. plus rising damp and hygroscopic moisture must be remedied first. It must be ensured that water and damaging salts dissolved in the water cannot penetrate behind the treated surface since this can lead to frost damage (spalling).Before a water repellent impregnation is carried out, crusts of dirt and pollutants as well as efflorescence, algae and moss must be removed by a suitable cleaning procedure. Cleaning opens the pores and capillaries, allowing them to absorb the impregnation agent.Dependent on the substrate, type and degree of soiling, we recommend the use of one of our Masonry Fungicide Products or a Moss & Algae Cleaner. When cleaning, make sure that the masonry is damaged as little as possible.Chase out defective mortar joints and cracks and repair with a suitable re-pointing mortar. Close expansion and connection joints with elastic joint-sealing compounds.Application Method:Dryseal is applied to building materials undiluted in the desired layer thickness using airless spray equipment, a brush or lambskin roller.Dependent on the absorbency of the substrate, application rates of up to 0.3 l/mÇ can be applied in one working operation, even on vertical surfaces/ceilings without a loss of material.A second application can be carried out at any time but is usually not necessary. Resistance to rain is normally achieved within one hour of application.Full cure up to two weeks depending on climactic conditions. Tools and equipment must be clean and dry prior to use but can be kept wrapped in plastic during short breaks in use.Clean thoroughly after use and before longer storage with water and/or white spirit.Limitations:Dryseal is not suitable for very dense, nonabsorbent substrates such as e.g. fine crystalline marble.Absorption of Dryseal is a prerequisite for optimal performance. This depends on the natural porosity and moisture content of the building material. For this reason, the substrate should be as dry as possible. If damaging salts are present, a quantitative salt analysis is essential.High salt concentrations (especially chlorides, nitrates and sulphates) may lead to damage that cannot be prevented by a water repellent treatment alone.Adjoining Surfaces: Due to the thixotropic nature of this product, where it is applied by brush or roller, accidental contamination of non-target surfaces can usually be avoided by taking reasonable care.However, where sprayed, items such as windows and surfaces which are (or will be) varnished or painted, as well as plants, should be covered with Polythene Sheets. Our Glass Protection Film is ideal use on windows.Coverage:A 3 Litre Tub of Dryseal will cover up to 15m², however this can be greatly reduced depending of the porosity of the substrate.Data SheetsTechnical Data SheetSafety Data SheetBBA Certificate shopify_GB_552085487646 shopify_GB_552085487646_7653386321950 new 57.90 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DRYSEAL_grande.jpg?v=1536146179 5060207860468 Wykamol Group WYWR11 Masonry Protection Cream 3 Litre Tub US 3.0 kg 0.00 GBP Wykamol Group Wykamol Corner Strip Tape https://www.platinumchemicals.co.uk/products/wykamol-membrane-corner-tape?variant=33180702933091 Wykamol Corner Strip Tape is a Heavy Duty, 1.2mm Thick membrane sealing tape with many uses.It is most commonly used to seal Waterproof Tanking Membranes from walls to floors and fixing Perimeter Drainage Channels.Wykamol Corner Strip Tape can also be used to overtape external joints and for oversealing on Floor Membranes.Supplied in (W) 150mm x (L) 20M Rolls.DescriptionWykamol Corner TapeWykamol Corner Strip Tape is a Heavy Duty, 1.2mm Thick membrane sealing tape with many uses.It is most commonly used to seal Waterproof Tanking Membranes from walls to floors and fixing Perimeter Drainage Channels (i.e Wykamol Waterguard Drainage Channel) in place.Wykamol Corner Strip Tape can be used to overtape external joints and for oversealing on Floor Membranes.Wykamol Corner Strip Tape may also be used as a repair product for sealing over any protrusions or punctures on the membrane.Wykamol Corner Strip Tape does NOT have a surface which can be directly plastered or rendered over, for an overtape tape which is designed for this purpose, see Wykamol Mesh Tape. shopify_GB_4723445432419 shopify_GB_4723445432419_33180702933091 new 59.88 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0954_grande.jpg?v=1605883710 Wykamol Group WYCMCT20 Waterproof Membrane Ancillaries 8.0 kg Wykamol Group Wykamol CM8-MESH Waterproof Membrane Kit (With CM Brick Plugs) https://www.platinumchemicals.co.uk/products/wykamol-cm8-mesh-basement-waterproof-membrane-kit?variant=39393817690211 A high quality Basement Waterproofing MESHED Membrane Kit using Wykamol CM8 MESH Membrane, supplied with a roll Wykamol Membrane Tape, a roll of Wykamol Mesh Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.Note: This particular kit is recommended for use in below ground structures (i.e Basements), hence the use of the 'heavier-duty' CM Brick Plugs for fixing. If this membrane is for use above ground level, the Wykamol CM8-MESH Tanking Membrane Kit (With Plaster Plugs) should be used instead.The Wykamol CM8 MESH Waterproof Membrane Kit can be purchased in 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM8 MESH Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM8 MESH Cavity Drain Membrane Kit (With CM Brick Plugs)Wykamol CM8 MESH Membrane is a high quality Cavity Drain Waterproofing Membrane comprising of high density polyethylene membrane with a strong HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM8 MESH Membrane is suitable for the waterproofing of earth retained walls and vaulted soffits below ground level (i.e Basements) delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 MESH Membrane is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof, and resistant to bacteria, fungi and other small organisms.Kit Contents:Wykamol CM8 MESH Waterproof  Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Waterseal TapeNo. of Mesh TapeNo. of SDS Drill Bits20M² Kit(W) 2.0M x (L) 10M320 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Tape(W) 28mm x (L) 22M1 x Roll of Wykamol Mesh Tape(W) 115mm x (L) 12.5M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Tape(W) 28mm x (L) 22M1 x Roll of Wykamol Mesh Tape(W) 115mm x (L) 12.5M2 x SDS Bits(W) 10mm x (L) 160mm Benefits & Features:BBA ApprovedExtremely Robust Membrane with High Performance Bonded MeshFor use in Below Ground Applications (Basements etc.)Part of a Type C Cavity Drain Membrane System in Line With BS8102:2009 when applying Below Ground.Waterproof, Salt Inhibiting, Root and Contaminate ResistantCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeEasy to Fold Around Windows and DoorsQuick to Install - Minimal Preparation Needed to Wall SurfacesNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureAssociated Products:Wykamol CM Brick Plugs: The recommended Fixing used to fix the Membrane to the substrate (Included In Kit).Wykamol Mesh Tape: A Sealing / Jointing Tape made of a butyl rubber compound with a polypropylene fleece finish. The 'Fleece' surface provides a 'key' for direct plastering and rendering over (Included In Kit).Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the studded flange where they overlap (Included In Kit).Wykamol Rope: Used to form a seal around the neck of the Fixing Plug if not using Sealing Washers. Can also be used to patch up any punctures in the membrane.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces in basements prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junctions in Basements. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures (basements) to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505kg/m²Sheet Thickness0.6mmStud Height7mmColourClearWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class FType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Unsound plaster, render or screed should be removed and surfaces made level. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.We recommend an application of Platinum Lime Inhibitor to the concrete walls, before an application of CM8 MESH, to prevent lime efflorescence and dusting, which can block Perimeter Drainage Channels.Application on Walls:Wykamol CM8 MESH Membrane is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. However as this product is not available in 2.4M height and also due to the heavy weight of the material, most fixing of Wykamol CM8 MESH Membrane will be Vertical.When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane.Horizontal Fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall using the Wykamol CM Brick Plugs.Place the membrane in position as level as you can judge by eye. Using the correct size of SDS Drill Bit required for the fixing, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer on the fixings re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing Vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet is joined by overlapping the edge of one sheet by another underneath by a minimum of 2 studs. Fix Brick Plugs & Seals through the studs as close as possible to the edge of the membrane.Apply Wykamol Mesh Tape along the joint with equal overlaps of the tape onto each sheet of membrane and press firmly into place.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Fix in a square at 350mm centres, and then fix a plug in the centre of four fixings so it looks like a 5 on a dice.All fixings will then be a maximum of 250mm centres.On very flat walls, the horizontal and vertical centres can be moved out to 400mm so when the centre plug is fixed, the centres are not more than 300mm.FinishingWykamol CM8 MESH Membrane can be plastered or rendered, or can be plasterboarded using a dab fix.Plasters:The recommended plaster to be applied to Wykamol CM8 MESH Membrane is Tarmac Whitewall which should be in two coats when applied to Wykamol Mesh Membranes.The plasters can accept a finishing 3mm skim coat to finish.Note: Manufacturers recommended drying times may vary according to atmospheric conditions.Cement Based Renders:For internal cement renders the mix should be six parts clean sharp sand / one part lime / one part cement. A two-coat application is recommended allowing 7-10 days between coats.Drying time is important because shrinkage cracks may appear.A weaker mix of seven or even eight parts sand can be used for the second coat.Hydraulic Lime Based Mortars:First CoatUsing a ratio of 1 part Lime to 2½ - 3 parts sharp washed sand with evenly distributed hair throughout the mortar and working to a layer of 10mm thick, push the plaster into and across the pre-wet laths at a 45 degree angle to the lathes.The plaster should be correctly cured until hardSecond CoatThe second coat also known as the intermediate or float coat will be applied similar to the first coat only without any hair being added to the mortar.You must ensure you wet down the first coat with a fine mist before spreading a 7mm coat, before scratching up and leaving in preparation of the finish coat.Finish CoatFor the final top coat a fine mix of 1 part lime putty to 2 parts well graded super fine sand. Remembering to wet down the surface before application with a fine mist spray.Allow time for the water to absorb into the plaster then apply a coat of approximately 5mm, then rule off and leave for a couple of hours.When ready, rub up the finish coat using a plastic or wooden trowel to bring back the fat until the required finish has been reached in the case of any light crazing this can be rubbed up and trowelled out.General Plastering & Rendering Considerations:Note: All plasters and renders etc. must be to a minimum total depth of 15mm.The undercoat should be applied with firm pressure to ensure the product is fully pushed behind the mesh so that the studs are fully filled, and to an approximate thickness of 5mm and be well scratched with a wire scratcher.When the scratch coat has set, the floating coat should be applied to a depth of 7mm and lightly scratched to provide a firm key for the final coat, which should be to a minimum thickness of 3mm.All plasters and renders should be applied strictly in accordance with the manufacturer’s instructions, and good plastering / rendering practice as described in BS5492 and BS5262 Code of Practice.Do not apply decoration until the plaster or render is thoroughly dry.If any special renders or plasters are to be considered, technical advice must be sought from the Company’s technical department.Curing:Note: Cement and Lime based mortars require curing. Curing is the process of keeping a mortar or render under a specific environmental condition until the chemical set (referred to as hydration) is sufficient to withstand the environment into which the mortar has been placed.Lime binders are generally weaker than cements taking longer to acquire their strength and hardness, leaving them potentially more vulnerable for a longer period than cement equivalents, and curing them once placed is simply regarded as best practice.Good curing is typically considered to be that of providing a humid environment stimulating full hydration of the lime or cement binders, providing strength development along with other benefits, especially the ability to withstand hairline cracking.The most common cause of failure is allowing a mortar / render to dry out too quickly, impeding the chemical process for hydration, stressing the mortar resulting in cracking.Standard practice for protecting cement or lime based renders/mortars is with wet / dampened hessian sheeting draped over the area in relatively close proximity to the render. This should be left in place for at least a week and is a standard requirement that is required in all cases.During the warmer months, the hessian will need to be repeatedly wetted and/or covered with plastic sheeting to ensure the correct curing environment.Curing should be of at least 7 days.Dry Lining:Wykamol CM8 MESH Membrane can be effectively used in conjunction with dry lining by dab fixing the plasterboard using a proprietary dabbing compound.Be careful when installing laminated or insulated plasterboard, as when they are dot & dabbed to Wykamol Meshed membranes, building regulations require two mechanical fixes to each laminated board. These fixings may breach the membrane which cannot be repaired.Where insulation is required to the wall build, we recommend to use a NON-MESHED Membrane (such as Wykamol CM8 Membrane) and use an independent dry-lining frame.House the insulation within the frame and plasterboard over.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP)BBA Certificate shopify_GB_6579336511587 shopify_GB_6579336511587_39393817690211 new 523.98 GBP499.02 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1013_grande.jpg?v=1621956216 Wykamol Group WYCM8MKB1 Basement Waterproof Membrane Kit 30.0 kg Wykamol Group Wykamol CM8-MESH Waterproof Membrane Kit (With CM Brick Plugs) https://www.platinumchemicals.co.uk/products/wykamol-cm8-mesh-basement-waterproof-membrane-kit?variant=39393817722979 A high quality Basement Waterproofing MESHED Membrane Kit using Wykamol CM8 MESH Membrane, supplied with a roll Wykamol Membrane Tape, a roll of Wykamol Mesh Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.Note: This particular kit is recommended for use in below ground structures (i.e Basements), hence the use of the 'heavier-duty' CM Brick Plugs for fixing. If this membrane is for use above ground level, the Wykamol CM8-MESH Tanking Membrane Kit (With Plaster Plugs) should be used instead.The Wykamol CM8 MESH Waterproof Membrane Kit can be purchased in 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM8 MESH Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM8 MESH Cavity Drain Membrane Kit (With CM Brick Plugs)Wykamol CM8 MESH Membrane is a high quality Cavity Drain Waterproofing Membrane comprising of high density polyethylene membrane with a strong HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM8 MESH Membrane is suitable for the waterproofing of earth retained walls and vaulted soffits below ground level (i.e Basements) delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 MESH Membrane is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof, and resistant to bacteria, fungi and other small organisms.Kit Contents:Wykamol CM8 MESH Waterproof  Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Waterseal TapeNo. of Mesh TapeNo. of SDS Drill Bits20M² Kit(W) 2.0M x (L) 10M320 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Tape(W) 28mm x (L) 22M1 x Roll of Wykamol Mesh Tape(W) 115mm x (L) 12.5M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Tape(W) 28mm x (L) 22M1 x Roll of Wykamol Mesh Tape(W) 115mm x (L) 12.5M2 x SDS Bits(W) 10mm x (L) 160mm Benefits & Features:BBA ApprovedExtremely Robust Membrane with High Performance Bonded MeshFor use in Below Ground Applications (Basements etc.)Part of a Type C Cavity Drain Membrane System in Line With BS8102:2009 when applying Below Ground.Waterproof, Salt Inhibiting, Root and Contaminate ResistantCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeEasy to Fold Around Windows and DoorsQuick to Install - Minimal Preparation Needed to Wall SurfacesNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureAssociated Products:Wykamol CM Brick Plugs: The recommended Fixing used to fix the Membrane to the substrate (Included In Kit).Wykamol Mesh Tape: A Sealing / Jointing Tape made of a butyl rubber compound with a polypropylene fleece finish. The 'Fleece' surface provides a 'key' for direct plastering and rendering over (Included In Kit).Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the studded flange where they overlap (Included In Kit).Wykamol Rope: Used to form a seal around the neck of the Fixing Plug if not using Sealing Washers. Can also be used to patch up any punctures in the membrane.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces in basements prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junctions in Basements. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures (basements) to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505kg/m²Sheet Thickness0.6mmStud Height7mmColourClearWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class FType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Unsound plaster, render or screed should be removed and surfaces made level. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.We recommend an application of Platinum Lime Inhibitor to the concrete walls, before an application of CM8 MESH, to prevent lime efflorescence and dusting, which can block Perimeter Drainage Channels.Application on Walls:Wykamol CM8 MESH Membrane is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. However as this product is not available in 2.4M height and also due to the heavy weight of the material, most fixing of Wykamol CM8 MESH Membrane will be Vertical.When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane.Horizontal Fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall using the Wykamol CM Brick Plugs.Place the membrane in position as level as you can judge by eye. Using the correct size of SDS Drill Bit required for the fixing, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer on the fixings re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing Vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet is joined by overlapping the edge of one sheet by another underneath by a minimum of 2 studs. Fix Brick Plugs & Seals through the studs as close as possible to the edge of the membrane.Apply Wykamol Mesh Tape along the joint with equal overlaps of the tape onto each sheet of membrane and press firmly into place.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Fix in a square at 350mm centres, and then fix a plug in the centre of four fixings so it looks like a 5 on a dice.All fixings will then be a maximum of 250mm centres.On very flat walls, the horizontal and vertical centres can be moved out to 400mm so when the centre plug is fixed, the centres are not more than 300mm.FinishingWykamol CM8 MESH Membrane can be plastered or rendered, or can be plasterboarded using a dab fix.Plasters:The recommended plaster to be applied to Wykamol CM8 MESH Membrane is Tarmac Whitewall which should be in two coats when applied to Wykamol Mesh Membranes.The plasters can accept a finishing 3mm skim coat to finish.Note: Manufacturers recommended drying times may vary according to atmospheric conditions.Cement Based Renders:For internal cement renders the mix should be six parts clean sharp sand / one part lime / one part cement. A two-coat application is recommended allowing 7-10 days between coats.Drying time is important because shrinkage cracks may appear.A weaker mix of seven or even eight parts sand can be used for the second coat.Hydraulic Lime Based Mortars:First CoatUsing a ratio of 1 part Lime to 2½ - 3 parts sharp washed sand with evenly distributed hair throughout the mortar and working to a layer of 10mm thick, push the plaster into and across the pre-wet laths at a 45 degree angle to the lathes.The plaster should be correctly cured until hardSecond CoatThe second coat also known as the intermediate or float coat will be applied similar to the first coat only without any hair being added to the mortar.You must ensure you wet down the first coat with a fine mist before spreading a 7mm coat, before scratching up and leaving in preparation of the finish coat.Finish CoatFor the final top coat a fine mix of 1 part lime putty to 2 parts well graded super fine sand. Remembering to wet down the surface before application with a fine mist spray.Allow time for the water to absorb into the plaster then apply a coat of approximately 5mm, then rule off and leave for a couple of hours.When ready, rub up the finish coat using a plastic or wooden trowel to bring back the fat until the required finish has been reached in the case of any light crazing this can be rubbed up and trowelled out.General Plastering & Rendering Considerations:Note: All plasters and renders etc. must be to a minimum total depth of 15mm.The undercoat should be applied with firm pressure to ensure the product is fully pushed behind the mesh so that the studs are fully filled, and to an approximate thickness of 5mm and be well scratched with a wire scratcher.When the scratch coat has set, the floating coat should be applied to a depth of 7mm and lightly scratched to provide a firm key for the final coat, which should be to a minimum thickness of 3mm.All plasters and renders should be applied strictly in accordance with the manufacturer’s instructions, and good plastering / rendering practice as described in BS5492 and BS5262 Code of Practice.Do not apply decoration until the plaster or render is thoroughly dry.If any special renders or plasters are to be considered, technical advice must be sought from the Company’s technical department.Curing:Note: Cement and Lime based mortars require curing. Curing is the process of keeping a mortar or render under a specific environmental condition until the chemical set (referred to as hydration) is sufficient to withstand the environment into which the mortar has been placed.Lime binders are generally weaker than cements taking longer to acquire their strength and hardness, leaving them potentially more vulnerable for a longer period than cement equivalents, and curing them once placed is simply regarded as best practice.Good curing is typically considered to be that of providing a humid environment stimulating full hydration of the lime or cement binders, providing strength development along with other benefits, especially the ability to withstand hairline cracking.The most common cause of failure is allowing a mortar / render to dry out too quickly, impeding the chemical process for hydration, stressing the mortar resulting in cracking.Standard practice for protecting cement or lime based renders/mortars is with wet / dampened hessian sheeting draped over the area in relatively close proximity to the render. This should be left in place for at least a week and is a standard requirement that is required in all cases.During the warmer months, the hessian will need to be repeatedly wetted and/or covered with plastic sheeting to ensure the correct curing environment.Curing should be of at least 7 days.Dry Lining:Wykamol CM8 MESH Membrane can be effectively used in conjunction with dry lining by dab fixing the plasterboard using a proprietary dabbing compound.Be careful when installing laminated or insulated plasterboard, as when they are dot & dabbed to Wykamol Meshed membranes, building regulations require two mechanical fixes to each laminated board. These fixings may breach the membrane which cannot be repaired.Where insulation is required to the wall build, we recommend to use a NON-MESHED Membrane (such as Wykamol CM8 Membrane) and use an independent dry-lining frame.House the insulation within the frame and plasterboard over.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP)BBA Certificate shopify_GB_6579336511587 shopify_GB_6579336511587_39393817722979 new 308.70 GBP294.00 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1013_grande.jpg?v=1621956216 Wykamol Group WYCM8MKB2 Basement Waterproof Membrane Kit 0.0 kg Wykamol Group Wykamol CM8 Waterproof Membrane Kit https://www.platinumchemicals.co.uk/products/wykamol-cm8-basement-waterproof-membrane-kit?variant=39393754349667 A high quality Waterproof Membrane Kit using Wykamol CM8 Membrane supplied with a roll Wykamol Membrane Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.The Wykamol CM8 Waterproof Membrane Kit can be purchased in 10M², 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM8 Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM8 Waterproof Membrane KitWykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).Wykamol CM8 Waterproof Membrane is suitable for 'Type C' Waterproofing in Basements, delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Kit Contents:CM3 Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Sealing TapeNo. of SDS Drill Bits10M² Kit(W) 2.0M x (L) 5M25 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm20M² Kit(W) 2.0M x (L) 10M50 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M100 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M2 x SDS Bits(W) 10mm x (L) 160mmTypical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate (Included in this Kit).Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap (Included in this Kit).Wykamol Rope: Used to form a seal around the neck of the Bricks Plug if not using Sealing Washers or for quick repairs of any accidental punctures in the membrane. Wykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6579298336867 shopify_GB_6579298336867_39393754349667 new 207.90 GBP198.00 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1012_grande.jpg?v=1621952586 Wykamol Group WYCM8K1S Basement Waterproof Membrane Kit 25.0 kg Wykamol Group Wykamol CM8 Waterproof Membrane Kit https://www.platinumchemicals.co.uk/products/wykamol-cm8-basement-waterproof-membrane-kit?variant=39393754382435 A high quality Waterproof Membrane Kit using Wykamol CM8 Membrane supplied with a roll Wykamol Membrane Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.The Wykamol CM8 Waterproof Membrane Kit can be purchased in 10M², 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM8 Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM8 Waterproof Membrane KitWykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).Wykamol CM8 Waterproof Membrane is suitable for 'Type C' Waterproofing in Basements, delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Kit Contents:CM3 Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Sealing TapeNo. of SDS Drill Bits10M² Kit(W) 2.0M x (L) 5M25 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm20M² Kit(W) 2.0M x (L) 10M50 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M100 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M2 x SDS Bits(W) 10mm x (L) 160mmTypical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate (Included in this Kit).Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap (Included in this Kit).Wykamol Rope: Used to form a seal around the neck of the Bricks Plug if not using Sealing Washers or for quick repairs of any accidental punctures in the membrane. Wykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6579298336867 shopify_GB_6579298336867_39393754382435 new 110.70 GBP105.48 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1012_grande.jpg?v=1621952586 Wykamol Group WYCM8K3S Basement Waterproof Membrane Kit 10.0 kg Wykamol Group Wykamol CM8 Waterproof Membrane Kit https://www.platinumchemicals.co.uk/products/wykamol-cm8-basement-waterproof-membrane-kit?variant=39393754415203 A high quality Waterproof Membrane Kit using Wykamol CM8 Membrane supplied with a roll Wykamol Membrane Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.The Wykamol CM8 Waterproof Membrane Kit can be purchased in 10M², 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM8 Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM8 Waterproof Membrane KitWykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).Wykamol CM8 Waterproof Membrane is suitable for 'Type C' Waterproofing in Basements, delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Kit Contents:CM3 Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Sealing TapeNo. of SDS Drill Bits10M² Kit(W) 2.0M x (L) 5M25 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm20M² Kit(W) 2.0M x (L) 10M50 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M100 x Wykamol CM Brick Plugs1 x Roll of Wykamol Membrane Sealing Tape(W) 28mm x (L) 22M2 x SDS Bits(W) 10mm x (L) 160mmTypical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate (Included in this Kit).Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap (Included in this Kit).Wykamol Rope: Used to form a seal around the neck of the Bricks Plug if not using Sealing Washers or for quick repairs of any accidental punctures in the membrane. Wykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6579298336867 shopify_GB_6579298336867_39393754415203 new 145.62 GBP138.72 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1012_grande.jpg?v=1621952586 Wykamol Group WYCM8K2S Basement Waterproof Membrane Kit 17.5 kg Wykamol Group Wykamol CM8 Waterproof Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-waterproof-membrane?variant=31807433703523 Wykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).  Wykamol CM8 Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.Available in 10M², 20M² and 40M² Rolls.DescriptionWykamol CM8 Waterproof MembraneWykamol CM8 Cavity Drain Membrane is an 8mm studded Waterproof Membrane, suitable for 'Type C' Waterproofing in Basements and delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Typical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate.Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap.Wykamol Rope: Used to form a seal around the neck of the Waterseal Plug if not using Sealing WashersWykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plug. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time. Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4426893951075 shopify_GB_4426893951075_31807433703523 new 148.68 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WykamolCM8Membrane1_grande.jpg?v=1605883643 Wykamol Group WYCM82020 Basement Waterproof Membranes (W) 2.07M x (L) 20M (40M²) US 20.0 kg Wykamol Group Wykamol CM8 Waterproof Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-waterproof-membrane?variant=31807433736291 Wykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).  Wykamol CM8 Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.Available in 10M², 20M² and 40M² Rolls.DescriptionWykamol CM8 Waterproof MembraneWykamol CM8 Cavity Drain Membrane is an 8mm studded Waterproof Membrane, suitable for 'Type C' Waterproofing in Basements and delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Typical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate.Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap.Wykamol Rope: Used to form a seal around the neck of the Waterseal Plug if not using Sealing WashersWykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plug. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time. Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4426893951075 shopify_GB_4426893951075_31807433736291 new 72.48 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WykamolCM8Membrane1_grande.jpg?v=1605883643 Wykamol Group WYCM82020-05 Basement Waterproof Membranes (W) 2.07M x (L) 5M (10M²) US 5.0 kg Wykamol Group Wykamol CM8 Waterproof Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-waterproof-membrane?variant=31807433769059 Wykamol CM8 Waterproof Membrane is a High Quality, BBA Approved, 8mm Stud Basement Waterproof Tanking Membrane. Wykamol CM8 is manufactured from High Density Polyethylene and is impermeable to water and water vapour.Wykamol CM8 Waterproof Membrane is suitable for the waterproofing of earth retained Walls, Floors and Vaulted Soffits below ground level (i.e in Basements).  Wykamol CM8 Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.Available in 10M², 20M² and 40M² Rolls.DescriptionWykamol CM8 Waterproof MembraneWykamol CM8 Cavity Drain Membrane is an 8mm studded Waterproof Membrane, suitable for 'Type C' Waterproofing in Basements and delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 has a life expectancy of the design life of the building / structure.Typical Uses:WallsFloorsVaultsTunnelsWaterproofing Applications Below Ground LevelBenefits & Features:BBA ApprovedCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsWaterproof, Salt Inhibiting, Rot and Contaminate ResistantQuick to Install - Minimal Preparation Needed to Wall SurfacesEasily Cut Down Using a Sharp BladeNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureLow and High Temperature TolerancePart of a 'Type C' Cavity Drain Membrane System in Line With BS8102:2009Clear in Colour for Easy Application and Fixing of Wykamol CM Brick PlugsAssociated Products:Wykamol CM Brick Plugs: For Fixing the Membrane to the substrate.Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the flange where they overlap.Wykamol Rope: Used to form a seal around the neck of the Waterseal Plug if not using Sealing WashersWykamol Corner Strip Tape: Used to link Waterproof Membranes at Floor to Wall joints.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junction. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.5Kg/m²Sheet Thickness0.45mmStud Height7mmColourClear (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 Membrane. This reduces potential damage to masonry and timber etc.We recommend an application of Platinum Lime Inhibitor to the concrete walls and slab, before an application of CM8, to prevent lime efflorescence and dusting, which can block perimeter drainage channels.Application on WallsWykamol CM8 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plug. The CM Brick Plug has a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm SDS Drill Bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet should overlap by at least the width of the flange of the new sheet. You may find it easier to interlock the first stud of the new sheet to the last stud of the last sheet as this helps to keep the new sheet level.The vertical joints have to be sealed with Wykamol Membrane Tape. It is easier to apply the tape to the inner surface of the flange of the next sheet. Clean the flange and the face of the last sheet with a clean rag.When you have fixed the new sheet level with the correct overlap, pull off the backing paper from the tape and peel down whilst applying pressure to the flange.Once all the backing paper has been removed, apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into the CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. The plug will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Wykamol CM8 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plug for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application On FloorsDrainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time. Methods of Drainage For Floor Membranes:Any drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage Channel:Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall/floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the membrane to the up-stand of the Wykamol Waterguard Channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Installation to VaultsA ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. CM Brick Plug with a seal made from Wykamol Rope should be used for application to vaulted ceilings.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where a membrane is to be installed in vaulted cellars our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.The CM Brick Plug with Wykamol Rope should be used to seal the plugs.NOTE: The Rubber Sealing Washers should not be used with the CM Plugs for this application as the washers are not suitable for this purpose.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the sealing tape.Once you have the second sheet positioned correctly over the sealing tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Membrane Tape, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape.Alternatively, Newton 601 Slimline or Platon Stop Membranes can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens. Services and protrusion should be collated where possible and passed through a pipe sealed with a pipe sleeve.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4426893951075 shopify_GB_4426893951075_31807433769059 new 100.20 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WykamolCM8Membrane1_grande.jpg?v=1605883643 Wykamol Group WYCM82020-10 Basement Waterproof Membranes (W) 2.07M x (L) 10M (20M²) US 10.0 kg Wykamol Group Wykamol CM8 MESH Waterproof Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-mesh-membrane?variant=31830272409699 Wykamol CM8 MESH Membrane is a High Quality, 8mm Stud, Basement Waterproofing Tanking Membrane comprising of HDPE Membrane with a strong HDPE mesh on the surface of one side.Mainly used in Below Ground Applications, Wykamol CM8 MESH Membrane can also be used in Above Ground Damp Proofing Applications.The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM8 MESH Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.Available in (W) 2.0M x (L) 10M (20M²) and (W) 2.0M x (L) 20M (40M²) Rolls.DescriptionWykamol CM8 MESH Cavity Drain MembraneWykamol CM8 MESH Membrane is a high quality Cavity Drain Waterproofing Membrane comprising of high density polyethylene membrane with a strong HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM8 MESH Membrane is suitable for the waterproofing of earth retained walls and vaulted soffits below ground level (i.e Basements) delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 MESH Membrane is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof, and resistant to bacteria, fungi and other small organisms.Benefits & Features:BBA ApprovedExtremely Robust Membrane with High Performance Bonded MeshCan be used in Above Ground or Below Ground ApplicationsPart of a Type C Cavity Drain Membrane System in Line With BS8102:2009 when applying Below Ground.Waterproof, Salt Inhibiting, Root and Contaminate ResistantCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeEasy to Fold Around Windows and DoorsQuick to Install - Minimal Preparation Needed to Wall SurfacesNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureAssociated Products:Wykamol CM Brick Plugs: The recommended Fixing used to fix the Membrane to the substrate in Below Ground Waterproofing Applications.Wykamol Ultimate Plaster Plugs: The recommended Fixing used to fix the Membrane to the substrate in Above Ground Damp Proofing Applications.Wykamol Mesh Tape: A Sealing / Jointing Tape made of a butyl rubber compound with a polypropylene fleece finish. The 'Fleece' surface provides a 'key' for direct plastering and rendering over.Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the studded flange where they overlap.Wykamol Rope: Used to form a seal around the neck of the Fixing Plug if not using Sealing Washers. Can also be used to patch up any punctures in the membrane.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces in basements prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junctions in Basements. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures (basements) to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505kg/m²Sheet Thickness0.6mmStud Height7mmColourClearWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class FType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Unsound plaster, render or screed should be removed and surfaces made level. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above Ground Level, it is recommended that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 MESH Membrane. This reduces potential damage to masonry and timber etc.Below Ground Level (Basements), we recommend an application of Platinum Lime Inhibitor to the concrete walls, before an application of CM8 MESH, to prevent lime efflorescence and dusting, which can block Perimeter Drainage Channels.Application on Walls:Wykamol CM8 MESH Membrane is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. However as this product is not available in 2.4M height and also due to the heavy weight of the material, most fixing of Wykamol CM8 MESH Membrane will be Vertical.When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane.Horizontal Fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall using either Wykamol CM Brick Plugs (in Below Ground Applications) or Wykamol Ultimate Plaster Plugs (in Above Ground Applications).Place the membrane in position as level as you can judge by eye. Using the correct size of SDS Drill Bit required for the fixing, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer on the fixings re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing Vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet is joined by overlapping the edge of one sheet by another underneath by a minimum of 2 studs. Fix Brick Plugs & Seals through the studs as close as possible to the edge of the membrane.Apply Wykamol Mesh Tape along the joint with equal overlaps of the tape onto each sheet of membrane and press firmly into place.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Fix in a square at 350mm centres, and then fix a plug in the centre of four fixings so it looks like a 5 on a dice.All fixings will then be a maximum of 250mm centres.On very flat walls, the horizontal and vertical centres can be moved out to 400mm so when the centre plug is fixed, the centres are not more than 300mm.FinishingWykamol CM8 MESH Membrane can be plastered or rendered, or can be plasterboarded using a dab fix.Plasters:The recommended plaster to be applied to Wykamol CM8 MESH Membrane is Tarmac Whitewall which should be in two coats when applied to Wykamol Mesh Membranes.The plasters can accept a finishing 3mm skim coat to finish.Note: Manufacturers recommended drying times may vary according to atmospheric conditions.Cement Based Renders:For internal cement renders the mix should be six parts clean sharp sand / one part lime / one part cement. A two-coat application is recommended allowing 7-10 days between coats.Drying time is important because shrinkage cracks may appear.A weaker mix of seven or even eight parts sand can be used for the second coat.Hydraulic Lime Based Mortars:First CoatUsing a ratio of 1 part Lime to 2½ - 3 parts sharp washed sand with evenly distributed hair throughout the mortar and working to a layer of 10mm thick, push the plaster into and across the pre-wet laths at a 45 degree angle to the lathes.The plaster should be correctly cured until hardSecond CoatThe second coat also known as the intermediate or float coat will be applied similar to the first coat only without any hair being added to the mortar.You must ensure you wet down the first coat with a fine mist before spreading a 7mm coat, before scratching up and leaving in preparation of the finish coat.Finish CoatFor the final top coat a fine mix of 1 part lime putty to 2 parts well graded super fine sand. Remembering to wet down the surface before application with a fine mist spray.Allow time for the water to absorb into the plaster then apply a coat of approximately 5mm, then rule off and leave for a couple of hours.When ready, rub up the finish coat using a plastic or wooden trowel to bring back the fat until the required finish has been reached in the case of any light crazing this can be rubbed up and trowelled out.General Plastering & Rendering Considerations:Note: All plasters and renders etc. must be to a minimum total depth of 15mm.The undercoat should be applied with firm pressure to ensure the product is fully pushed behind the mesh so that the studs are fully filled, and to an approximate thickness of 5mm and be well scratched with a wire scratcher.When the scratch coat has set, the floating coat should be applied to a depth of 7mm and lightly scratched to provide a firm key for the final coat, which should be to a minimum thickness of 3mm.All plasters and renders should be applied strictly in accordance with the manufacturer’s instructions, and good plastering / rendering practice as described in BS5492 and BS5262 Code of Practice.Do not apply decoration until the plaster or render is thoroughly dry.If any special renders or plasters are to be considered, technical advice must be sought from the Company’s technical department.Curing:Note: Cement and Lime based mortars require curing. Curing is the process of keeping a mortar or render under a specific environmental condition until the chemical set (referred to as hydration) is sufficient to withstand the environment into which the mortar has been placed.Lime binders are generally weaker than cements taking longer to acquire their strength and hardness, leaving them potentially more vulnerable for a longer period than cement equivalents, and curing them once placed is simply regarded as best practice.Good curing is typically considered to be that of providing a humid environment stimulating full hydration of the lime or cement binders, providing strength development along with other benefits, especially the ability to withstand hairline cracking.The most common cause of failure is allowing a mortar / render to dry out too quickly, impeding the chemical process for hydration, stressing the mortar resulting in cracking.Standard practice for protecting cement or lime based renders/mortars is with wet / dampened hessian sheeting draped over the area in relatively close proximity to the render. This should be left in place for at least a week and is a standard requirement that is required in all cases.During the warmer months, the hessian will need to be repeatedly wetted and/or covered with plastic sheeting to ensure the correct curing environment.Curing should be of at least 7 days.Dry Lining:Wykamol CM8 MESH Membrane can be effectively used in conjunction with dry lining by dab fixing the plasterboard using a proprietary dabbing compound.Be careful when installing laminated or insulated plasterboard, as when they are dot & dabbed to Wykamol Meshed membranes, building regulations require two mechanical fixes to each laminated board. These fixings may breach the membrane which cannot be repaired.Where insulation is required to the wall build, we recommend to use a NON-MESHED Membrane (such as Wykamol CM8 Membrane) and use an independent dry-lining frame.House the insulation within the frame and plasterboard over.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP)BBA Certificate shopify_GB_4433491525731 shopify_GB_4433491525731_31830272409699 new 264.60 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM8_Mesh_Membrane_grande.jpg?v=1605883570 Wykamol Group WYCM8M2020 Basement Waterproof Membranes (W) 2.0M x (L) 20M (40M²) US 12.0 kg Wykamol Group Wykamol CM8 MESH Waterproof Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-mesh-membrane?variant=31830272442467 Wykamol CM8 MESH Membrane is a High Quality, 8mm Stud, Basement Waterproofing Tanking Membrane comprising of HDPE Membrane with a strong HDPE mesh on the surface of one side.Mainly used in Below Ground Applications, Wykamol CM8 MESH Membrane can also be used in Above Ground Damp Proofing Applications.The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM8 MESH Waterproof Membrane is supported by BBA Certification Certificate Number 18/5595.Available in (W) 2.0M x (L) 10M (20M²) and (W) 2.0M x (L) 20M (40M²) Rolls.DescriptionWykamol CM8 MESH Cavity Drain MembraneWykamol CM8 MESH Membrane is a high quality Cavity Drain Waterproofing Membrane comprising of high density polyethylene membrane with a strong HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM8 MESH Membrane is suitable for the waterproofing of earth retained walls and vaulted soffits below ground level (i.e Basements) delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM8 MESH Membrane is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof, and resistant to bacteria, fungi and other small organisms.Benefits & Features:BBA ApprovedExtremely Robust Membrane with High Performance Bonded MeshCan be used in Above Ground or Below Ground ApplicationsPart of a Type C Cavity Drain Membrane System in Line With BS8102:2009 when applying Below Ground.Waterproof, Salt Inhibiting, Root and Contaminate ResistantCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeEasy to Fold Around Windows and DoorsQuick to Install - Minimal Preparation Needed to Wall SurfacesNo Drying Out Process - Redecoration Can Occur ImmediatelyLittle or No Damage to the Existing StructureAssociated Products:Wykamol CM Brick Plugs: The recommended Fixing used to fix the Membrane to the substrate in Below Ground Waterproofing Applications.Wykamol Ultimate Plaster Plugs: The recommended Fixing used to fix the Membrane to the substrate in Above Ground Damp Proofing Applications.Wykamol Mesh Tape: A Sealing / Jointing Tape made of a butyl rubber compound with a polypropylene fleece finish. The 'Fleece' surface provides a 'key' for direct plastering and rendering over.Wykamol Membrane Tape: Provides a double-sided waterproof seal when joining Membranes along the studded flange where they overlap.Wykamol Rope: Used to form a seal around the neck of the Fixing Plug if not using Sealing Washers. Can also be used to patch up any punctures in the membrane.Platinum Lime Inhibitor: Used for the control of primary and secondary efflorescence in concrete mixes. Should be applied to concrete surfaces in basements prior to the installation of a 'Type C' Cavity Drain Membrane System to prevent the ‘leaching’ of free lime from the concrete.Waterguard Basement Channel: A PVC Drainage Channel System which should be fitted around the periphery of an internal floor at the vulnerable wall / floor junctions in Basements. Any water entering the building through walls or curved soffits is controlled behind the membrane and enters the channel through before being diverted to a Mechanical (Sump and Pump System) or Natural drainage point.Basement Sump & Pump Systems: Complete water control systems principally designed for use in below ground structures (basements) to control water ingress.Technical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505kg/m²Sheet Thickness0.6mmStud Height7mmColourClearWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)180 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class FType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Unsound plaster, render or screed should be removed and surfaces made level. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding.Above Ground Level, it is recommended that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM8 MESH Membrane. This reduces potential damage to masonry and timber etc.Below Ground Level (Basements), we recommend an application of Platinum Lime Inhibitor to the concrete walls, before an application of CM8 MESH, to prevent lime efflorescence and dusting, which can block Perimeter Drainage Channels.Application on Walls:Wykamol CM8 MESH Membrane is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. However as this product is not available in 2.4M height and also due to the heavy weight of the material, most fixing of Wykamol CM8 MESH Membrane will be Vertical.When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane.Horizontal Fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape for jointing.The membrane is fixed to the wall using either Wykamol CM Brick Plugs (in Below Ground Applications) or Wykamol Ultimate Plaster Plugs (in Above Ground Applications).Place the membrane in position as level as you can judge by eye. Using the correct size of SDS Drill Bit required for the fixing, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer on the fixings re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing Vertically, hang each subsequent sheet by the two fixings as described above. The subsequent sheet is joined by overlapping the edge of one sheet by another underneath by a minimum of 2 studs. Fix Brick Plugs & Seals through the studs as close as possible to the edge of the membrane.Apply Wykamol Mesh Tape along the joint with equal overlaps of the tape onto each sheet of membrane and press firmly into place.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Fix in a square at 350mm centres, and then fix a plug in the centre of four fixings so it looks like a 5 on a dice.All fixings will then be a maximum of 250mm centres.On very flat walls, the horizontal and vertical centres can be moved out to 400mm so when the centre plug is fixed, the centres are not more than 300mm.FinishingWykamol CM8 MESH Membrane can be plastered or rendered, or can be plasterboarded using a dab fix.Plasters:The recommended plaster to be applied to Wykamol CM8 MESH Membrane is Tarmac Whitewall which should be in two coats when applied to Wykamol Mesh Membranes.The plasters can accept a finishing 3mm skim coat to finish.Note: Manufacturers recommended drying times may vary according to atmospheric conditions.Cement Based Renders:For internal cement renders the mix should be six parts clean sharp sand / one part lime / one part cement. A two-coat application is recommended allowing 7-10 days between coats.Drying time is important because shrinkage cracks may appear.A weaker mix of seven or even eight parts sand can be used for the second coat.Hydraulic Lime Based Mortars:First CoatUsing a ratio of 1 part Lime to 2½ - 3 parts sharp washed sand with evenly distributed hair throughout the mortar and working to a layer of 10mm thick, push the plaster into and across the pre-wet laths at a 45 degree angle to the lathes.The plaster should be correctly cured until hardSecond CoatThe second coat also known as the intermediate or float coat will be applied similar to the first coat only without any hair being added to the mortar.You must ensure you wet down the first coat with a fine mist before spreading a 7mm coat, before scratching up and leaving in preparation of the finish coat.Finish CoatFor the final top coat a fine mix of 1 part lime putty to 2 parts well graded super fine sand. Remembering to wet down the surface before application with a fine mist spray.Allow time for the water to absorb into the plaster then apply a coat of approximately 5mm, then rule off and leave for a couple of hours.When ready, rub up the finish coat using a plastic or wooden trowel to bring back the fat until the required finish has been reached in the case of any light crazing this can be rubbed up and trowelled out.General Plastering & Rendering Considerations:Note: All plasters and renders etc. must be to a minimum total depth of 15mm.The undercoat should be applied with firm pressure to ensure the product is fully pushed behind the mesh so that the studs are fully filled, and to an approximate thickness of 5mm and be well scratched with a wire scratcher.When the scratch coat has set, the floating coat should be applied to a depth of 7mm and lightly scratched to provide a firm key for the final coat, which should be to a minimum thickness of 3mm.All plasters and renders should be applied strictly in accordance with the manufacturer’s instructions, and good plastering / rendering practice as described in BS5492 and BS5262 Code of Practice.Do not apply decoration until the plaster or render is thoroughly dry.If any special renders or plasters are to be considered, technical advice must be sought from the Company’s technical department.Curing:Note: Cement and Lime based mortars require curing. Curing is the process of keeping a mortar or render under a specific environmental condition until the chemical set (referred to as hydration) is sufficient to withstand the environment into which the mortar has been placed.Lime binders are generally weaker than cements taking longer to acquire their strength and hardness, leaving them potentially more vulnerable for a longer period than cement equivalents, and curing them once placed is simply regarded as best practice.Good curing is typically considered to be that of providing a humid environment stimulating full hydration of the lime or cement binders, providing strength development along with other benefits, especially the ability to withstand hairline cracking.The most common cause of failure is allowing a mortar / render to dry out too quickly, impeding the chemical process for hydration, stressing the mortar resulting in cracking.Standard practice for protecting cement or lime based renders/mortars is with wet / dampened hessian sheeting draped over the area in relatively close proximity to the render. This should be left in place for at least a week and is a standard requirement that is required in all cases.During the warmer months, the hessian will need to be repeatedly wetted and/or covered with plastic sheeting to ensure the correct curing environment.Curing should be of at least 7 days.Dry Lining:Wykamol CM8 MESH Membrane can be effectively used in conjunction with dry lining by dab fixing the plasterboard using a proprietary dabbing compound.Be careful when installing laminated or insulated plasterboard, as when they are dot & dabbed to Wykamol Meshed membranes, building regulations require two mechanical fixes to each laminated board. These fixings may breach the membrane which cannot be repaired.Where insulation is required to the wall build, we recommend to use a NON-MESHED Membrane (such as Wykamol CM8 Membrane) and use an independent dry-lining frame.House the insulation within the frame and plasterboard over.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP)BBA Certificate shopify_GB_4433491525731 shopify_GB_4433491525731_31830272442467 new 151.20 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM8_Mesh_Membrane_grande.jpg?v=1605883570 Wykamol Group WYCM8M2020-10 Basement Waterproof Membranes (W) 2.0M x (L) 10M (20M²) US 12.0 kg Wykamol Group Wykamol CM8 Geotextile External Drainage Membrane (8mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm8-geotextile-membrane?variant=32841104097379 Wykamol CM8 Geotextile Membrane is a High Quality, 8mm Stud, External Basement Drainage Membrane comprising of an 8mm studded HDPE Membrane and a non-woven geotextile.Wykamol CM8 Geotextile Membrane is designed to manage water to the land drain, relieving pressure from the structure.Supplied in (W) 2.0M x (L) 20M - (40M²) Rolls.DescriptionWykamol CM8 Geotextile External Drainage MembraneWykamol CM8 Geotextile Membrane is a Twin-Layered Cavity Drain Membrane, designed to manage water to the land drain, relieving pressure from the structure.The dual layers comprise of a High Quality 8mm Studded HDPE Membrane and a Non-Woven Geotextile manufactured from UV stabilised, high tenacity, virgin polypropylene fibres that have been mechanically entangled to provide high strength, high extensibility, high loft and excellent abrasion characteristics.The Geotextiles are also thermally treated to reduce thickness while maintaining excellent mechanical properties.Benefits & Features:Suitable for use with all Construction TypesDrains off water before reaching the Waterproof CoatingEasy Handling, Rapid InstallationRugged, Durable Construction with Thermal Insulation BenefitsFiltration Layers prevents silting-upHigh Compressive Strength and Drainage CapacityCombined Drainage and Protection BoardAllows Back-filling with Excavated EarthWithstands Stress and Movement in the Background.Product Uses:Isolate and protect external structure from surround soilHelps relieve hydrostatic pressure from the face of the structureIdeal for retaining walls, podium decks, external tanking and green roof applications.Technical Data:Technical Characteristics:Technical DataResultTest StandardsMaterialHDPE & Geotextile FabricN/ATotal Unit Weight0.61 kg/m²N/ATotal Sheet Thickness0.97EN  149-2Stud Height7mmN/AColourBlackN/AWater Tightness (60kPa; 24H)PassEN 1928Working Temperature-50°C to +80°CN/ASoftening Temperature126°CN/ATensile Strength MD416 NBS 12311-2Tensile Strength CD488 NBS 12311-2Resistance to Static Loading>20KgBS 12730Compressive Strength180 kNBS EN ISO 25619-2Reaction to FireClass EBS EN 13501-1 : 2007+A1:2009Type of ApplicationType VN/ALife ExpectancyLifetime of StructureGeotextile Mechanical Properties:Technical DataResultTest StandardsCBR Puncture ResistanceHDPE & Geotextile FabricEN ISO 12236Tensile Strength (M)8 Kn/mEN ISO 10319Tensile Strength (CMD)8.5 kN/mEN ISO 10319Tensile Elongation (MD)50%EN ISO 10319Tensile Elongation (CMD)60%EN ISO 10319Dynamic Perforation35mmEN ISO 13433Geotextile Hydraulic Properties:Technical DataResultTest StandardsPore Size (O 90)100μmEN ISO 12956Permeability (H 50)79 l/m²/sEN ISO 11058Geotextile Physical Properties:Technical DataResultTest StandardsMass Per Unit Area0.11 Kg/m²EN ISO 9864Thickness0.52 mmEN ISO 9863-1Design ConsiderationsDesign Considerations:Build new structures to the requirements of BS 8102:2009. Further guidance is available in CIRIA Report 139 - Water Resisting Basements.Use Waterbars at construction joints as part of an effective multi-staged approach to the waterproofing.Carry out a geotechnical survey to evaluate soil characteristics and groundwater conditions in accordance with BS 8004. Great care should be taken when considering waterproofing that requires the permanent removal of the ground water to be effective. See BS 8102:2009 Section 5 for further guidance.When used as a drainage membrane, Wykamol CM8 Geotextile Membrane should only be used to sloping sites where ground water is diverted around and drained away safely downhill of the structure.The land drain or perforated pipe to the base of an externally applied drainage membrane should be maintainable and graded to an open outlet below the level of the lowest slab. If risk of surcharge exists a pumped back flow protection device should be used. See BS 8102:2009 Section 6.4 for further information.Land drains or perforated pipes should be maintainable. Include accessible jetting ports at regular intervals with at least one jetting port to each elevation.InstallationSubstrate Preparation:Prior to application of Wykamol CM8 Geotextile Membrane, consideration needs to be given to the soil composition and at what depth the water table is. We would recommend this investigation be carried out by a Geotechnical Engineer to determine the potential risks.Ensure all surfaces are free from any sharp protrusions and in reasonably sound condition. Using Universal Mortar, provide a triangular mortar fillet at any point of the wall where it is necessary to smooth out angles between the vertical and horizontal elements of the structure.Installation - Vertical Surfaces:Apply a suitable Liquid Applied Waterproofing Membrane to walls in accordance with the product data sheets. If the Liquid Waterproof has been applied below the raft, link the raft and wall membrane to provide continuous waterproofing.Apply Wykamol CM8 Geotextile Membrane horizontally. The membrane is held to the wall by the back-fill. Do not use fixings through the drainage layer as this will also perforate the waterproofing membrane. Use Wykamol CM Brick Plugs as a final fix to the top of the installation ensuring that this is above external ground level. Using temporary means to hold the membrane in place whilst backfilling, overlap subsequent sheets of Wykamol CM8 Geotextile Membrane, ensuring that the filter fabric of the next sheet overlaps the previous studded core - a section of filter fabric is separated from the drainage core for this purpose.Seal the edges of sheets using the flange at the edge of each sheet using Wykamol Membrane Tape or Wykamol Corner Strip Tape.Place a slotted drain to the base of the foundation so that the top of the drain is below the top of the internal slab level. Place the drain within a bed of clean graded 20mm stone surrounded by a sheet of Geotextile filter fabric ensuring that enough Geotextile is available to lap to the Wykamol CM8 Geotextile Membrane to give continuity of the filter fabric.NOTE: If Wykamol CM8 Geotextile Membrane is used below the raft also, the slotted pipe will need to be lowered so it is below the horizontal membrane.Ensure the slotted pipe drains freely to a safe collection point that is downhill of the structure.Place the Geotex filter fabric to the face of the membrane so that it is held in place by the back-fill.Use Newton GeoStrip Capping Profile to the top edge of the membrane to prevent debris and back-fill from entering the cavity between the drainage core and the filter fabricCarefully back-fill the excavation. If graded stone is used, a protection board is not required but the stone should be placed in controlled layers of no more than 600mm so as to prevent slump to the membrane. If the removed soil is re-used, ensure that it does not contain sharp stones and ensure that the soil is compacted every 600mm. If sharp stones exist within the re-used soil a protection board will be required.Installation - Under the Concrete Raft:Lay Wykamol CM8 Geotextile Membrane in adjoining strips above the hard-core. Sand blinding is not required. Extend Wykamol CM8 Geotextile Membrane past the footprint of the raft by 500mm and continue to the slotted drain surrounded in clean graded stone. Overlap and tape sheets with Wykamol Membrane Tape.The Liquid Waterproofing Membrane should be laid above the Wykamol CM8 Geotextile Membrane as the primary waterproofing membrane, prior to the placing of the concrete raft.Limitations:Wykamol CM8 Geotextile Membrane is a drainage membrane, not a waterproofing membrane. Waterproofing of the structure should be achieved with a High Quality Primary Liquid Waterproofing Membrane.Wykamol CM8 Geotextile Membrane should not be used to de-water permanently high water levels. See BS 8102:2009 Section 5 for further guidance.Backfill should be compacted every 600mm to prevent linear shear of the filter fabric from the drainage core if no protection board is usedDo not fix through the waterproofing membrane to fix the drainage membrane.Finishing:We advise that the drainage pipes are checked to ensure they will carry water away from the footings either passively (taking advantage of natural gradients) or actively, using a sump and pump.Pipes should have a jetting detail so pipework can be flushed at regular intervals.Back-filling should be carried out with care to minimise the risk of physical damage to the membrane and prevent tears around the fixings.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP): shopify_GB_4663573151843 shopify_GB_4663573151843_32841104097379 new 226.80 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/PlatinumGeotex1_grande.jpg?v=1605883490 Wykamol Group WYCM8G2020 External Drainage Membranes (W) 2.0M x (L) 20M (40M²) US 20.0 kg Wykamol Group Wykamol CM3 Waterproof Membrane Kit https://www.platinumchemicals.co.uk/products/wykamol-cm3-waterproof-membrane-kit?variant=39388281340003 A high quality Waterproof Membrane Kit using Wykamol CM3 NON-MESH Membrane, supplied with a roll Wykamol Corner Strip Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 Waterproof Membrane Kit can be purchased in 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM3 Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM3 Waterproof Membrane KitWykamol CM3 Waterproof Membrane is a High Quality, 3mm Studded, NON-MESHED, HDPE Membrane suitable for use on Walls, Floors, Vaults and Tunnels, above and below ground level.Wykamol CM3 Waterproof Membrane can be used for both Damp Proofing (Above Ground Level) and for 'Type C' Structural Waterproofing (Below Ground Level; i.e. Basements).Wykamol CM3 Waterproof Membrane can be used as an alternative to meshed membranes where a meshed surface is not required, typically where the wall finish to the membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Waterproof Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.Kit Contents:CM3 Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Sealing TapeNo. of SDS Drill Bits20M² Kit(W) 2.0M x (L) 10M50 x Wykamol CM Brick Plugs1 x Roll of Wykamol Corner Strip Tape(W) 150mm x (L) 12.5M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M100 x Wykamol CM Brick Plugs1 x Roll of Wykamol Corner Strip Tape(W) 150mm x (L) 25M2 x SDS Bits(W) 10mm x (L) 160mmProduct Uses:For use as a 'Type C' Waterproofing Membrane: As a Waterproof Membrane, Wykamol CM3 Membrane is suitable for the 'Type C' Waterproofing of earth retained walls, floors, vaults and tunnels below ground level (i.e basements).Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years, delivering a Grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.For use as a Damp Proofing Membrane:As a Damp Proof Membrane, Wykamol CM3 Membrane can be used above ground level, as an alternative to meshed membranes where a meshed surface is NOT required, typically where the wall finish to the damp proof membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedSuitable for use in Above Ground (Damp Proofing) and Below Ground (Basement Waterproofing) applications.Does not require extensive and damaging preparation to the wall surface.Only 3mm in thickness and so is ideal for when space is tight, such as with stairs or low headroom.Speed of installation.Provides vapour control and, when used with humidity control systems, is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009 and NHBC Chapter 5.4.Creates a dry, habitable living space in areas previously suffering from damp / wet conditions.Waterproof, Salt Inhibiting, Root and Contaminate resistant.Technical Data:Membrane MaterialHDPEMembrane Thickness0.6mmStud Depth3.0mmDensity500g/m²Softening Temperature126°CService Temperature-50°C to +80°CTensile Strength MD (BS 12311-2)418 NTensile Strength CD (BS 12311-2)488 NWater Vapour Resistance>3020 MNs/gResistance to Static Loading (BS 12730)>20 KgResistance to Fire (BS EN 13501-1)Class FLife ExpectancyLifetime of Structure For WaterproofingWhen Using As A 'Type C' Basement Waterproof MembranePreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding. Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM3 Membrane. This reduces potential damage to masonry and timber etc.Application on Walls:Wykamol CM3 should be installed by those with experience of structural waterproofing.It is recommended that Wykamol CM3 and its ancillary products be installed by contractors trained for the correct use and specification of the product.Wykamol CM3 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Corner Strip Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. These plugs have a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm drill bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. CM Brick Plugs will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Newton 503 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plugs for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application on Floors:Drainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.A Flooring Membrane can also be installed over the floor in above ground situations to provide isolation from damp floors either as the primary DPM or above green concrete to accelerate the contract program.The concrete will continue to cure below the dry membrane surface allowing for floor finishes to be laid above the membrane much quicker than normal.Methods of Drainage For Floor Membranes:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a sump chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point. Wykamol Waterguard Drainage Channel: Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Seal the Wykamol CM3 Membrane to the up-stand of the Wykamol Waterguard perimeter drainage channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Application to Vaults:A ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. Use CM Brick Plugs (Without the Rubber Sealing Washers) but instead with a seal made from Wykamol Rope for application to vaulted ceilings.NOTE: The Rubber Sealing Washers should not be used with the CM Brick Plugs for this application as the washers are not suitable for this purpose.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where these membranes are to be installed in vaulted cellars, our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.Again, the CM Brick Plugs (Excluding the Rubber Seals) with Wykamol Rope should be used to seal the plugs.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Membrane Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the membrane tape.Once you have the second sheet positioned correctly over the membrane tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Rope, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol CM3 Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape. Alternatively, a slim Flooring Membrane such as Newton 601 Slimline Membrane or Platon Stop Membrane can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens.For Damp ProofingWhen Using As A Damp Proof MembranePreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and Wykamol CM3 Membrane can be fitted directly over. Loose or crumbling render should be removed.If evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membrane.If any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialist.If a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Membrane ready for the concrete placement.Cutting to Size:Wykamol CM3 Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or vertically.Fit the edge of the next length of membrane adjacent to the previous sheet with a butt-joint. Overtape the butt-joint with Wykamol Corner Strip Tape.Wykamol CM3 Membrane can be taken round corners. Try to fit the membrane square with neat creases to the internal and external corners. Where the membrane starts to be misshapen due to the contours of the wall, cut the membrane and start again with a new butt-joint secured with Wykamol Corner Strip Tape.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture prior to the application of the Wykamol Corner Strip Tape.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the membrane.Wykamol CM3 Membrane is fitted to the wall with the studs facing the wall and the flat surface facing inwards towards the applicator. Fix the membrane to the wall with the CM Brick Plugs to all substrates except to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 Membrane can be fitted horizontally or vertically. Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used.Using a 10mm SDS Drill Bit, drill through the membrane into the wall to a depth of at least 60mm.Fix only as many plugs as are required to fix the membrane neatly to the wallIf fixings are required for fixing of timber battens, brackets for Gypliner type dry-lining frame or wall ties, add further plugs to the correct centres required for the wall lining.Hammer the plugs home using a wide headed hammer such as a lump hammer or mallet.Fit Wykamol CM3 Membrane to return walls to isolate wall finishes from dampness transmitting from the main wall being treated.Wykamol CM3 Membrane can be taken into reveals.Using CM Brick Plugs for Fixing:CM Brick Plugs have a hollow core that is designed to receive 5mm self-tapping screws. Use either plug to secure timber battens or locating brackets from wall lining systems. Heavier items can be supported by screwing a piece of chipboard to the plugs at fairly close centres and then fixing the heavier item to the chipboard in a conventional wayFixing Heavier Objects to the Wall:Heavier objects should be attached to the wall using resin anchors. Seal around the resin anchor with Newton 801-M Mastic Sealant.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP):BBA Certificate: shopify_GB_6577644896355 shopify_GB_6577644896355_39388281340003 new 244.08 GBP232.50 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1010_grande.jpg?v=1621607211 Wykamol Group WYCM3K1S Basement Waterproof Membrane Kit 20.0 kg Wykamol Group Wykamol CM3 Waterproof Membrane Kit https://www.platinumchemicals.co.uk/products/wykamol-cm3-waterproof-membrane-kit?variant=39388281372771 A high quality Waterproof Membrane Kit using Wykamol CM3 NON-MESH Membrane, supplied with a roll Wykamol Corner Strip Tape, and the recommended number of Wykamol CM Brick Plugs for fixing.Each kit size is also supplied with a high quality (W) 10mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 Waterproof Membrane Kit can be purchased in 20M² or 40M² sizes, use the drop-down box option below to choose your preferred kit size.A full table of each Waterproof Membrane Kit Contents is shown below in the 'Description' Tab.  Wykamol CM3 Membrane is supported by BBA Certification Certificate Number 18/5595.DescriptionWykamol CM3 Waterproof Membrane KitWykamol CM3 Waterproof Membrane is a High Quality, 3mm Studded, NON-MESHED, HDPE Membrane suitable for use on Walls, Floors, Vaults and Tunnels, above and below ground level.Wykamol CM3 Waterproof Membrane can be used for both Damp Proofing (Above Ground Level) and for 'Type C' Structural Waterproofing (Below Ground Level; i.e. Basements).Wykamol CM3 Waterproof Membrane can be used as an alternative to meshed membranes where a meshed surface is not required, typically where the wall finish to the membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Waterproof Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.Kit Contents:CM3 Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of Sealing TapeNo. of SDS Drill Bits20M² Kit(W) 2.0M x (L) 10M50 x Wykamol CM Brick Plugs1 x Roll of Wykamol Corner Strip Tape(W) 150mm x (L) 12.5M1 x SDS Bit(W) 10mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M100 x Wykamol CM Brick Plugs1 x Roll of Wykamol Corner Strip Tape(W) 150mm x (L) 25M2 x SDS Bits(W) 10mm x (L) 160mmProduct Uses:For use as a 'Type C' Waterproofing Membrane: As a Waterproof Membrane, Wykamol CM3 Membrane is suitable for the 'Type C' Waterproofing of earth retained walls, floors, vaults and tunnels below ground level (i.e basements).Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years, delivering a Grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.For use as a Damp Proofing Membrane:As a Damp Proof Membrane, Wykamol CM3 Membrane can be used above ground level, as an alternative to meshed membranes where a meshed surface is NOT required, typically where the wall finish to the damp proof membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedSuitable for use in Above Ground (Damp Proofing) and Below Ground (Basement Waterproofing) applications.Does not require extensive and damaging preparation to the wall surface.Only 3mm in thickness and so is ideal for when space is tight, such as with stairs or low headroom.Speed of installation.Provides vapour control and, when used with humidity control systems, is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009 and NHBC Chapter 5.4.Creates a dry, habitable living space in areas previously suffering from damp / wet conditions.Waterproof, Salt Inhibiting, Root and Contaminate resistant.Technical Data:Membrane MaterialHDPEMembrane Thickness0.6mmStud Depth3.0mmDensity500g/m²Softening Temperature126°CService Temperature-50°C to +80°CTensile Strength MD (BS 12311-2)418 NTensile Strength CD (BS 12311-2)488 NWater Vapour Resistance>3020 MNs/gResistance to Static Loading (BS 12730)>20 KgResistance to Fire (BS EN 13501-1)Class FLife ExpectancyLifetime of Structure For WaterproofingWhen Using As A 'Type C' Basement Waterproof MembranePreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding. Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM3 Membrane. This reduces potential damage to masonry and timber etc.Application on Walls:Wykamol CM3 should be installed by those with experience of structural waterproofing.It is recommended that Wykamol CM3 and its ancillary products be installed by contractors trained for the correct use and specification of the product.Wykamol CM3 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Corner Strip Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. These plugs have a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm drill bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. CM Brick Plugs will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Newton 503 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plugs for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application on Floors:Drainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.A Flooring Membrane can also be installed over the floor in above ground situations to provide isolation from damp floors either as the primary DPM or above green concrete to accelerate the contract program.The concrete will continue to cure below the dry membrane surface allowing for floor finishes to be laid above the membrane much quicker than normal.Methods of Drainage For Floor Membranes:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a sump chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point. Wykamol Waterguard Drainage Channel: Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Seal the Wykamol CM3 Membrane to the up-stand of the Wykamol Waterguard perimeter drainage channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Application to Vaults:A ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. Use CM Brick Plugs (Without the Rubber Sealing Washers) but instead with a seal made from Wykamol Rope for application to vaulted ceilings.NOTE: The Rubber Sealing Washers should not be used with the CM Brick Plugs for this application as the washers are not suitable for this purpose.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where these membranes are to be installed in vaulted cellars, our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.Again, the CM Brick Plugs (Excluding the Rubber Seals) with Wykamol Rope should be used to seal the plugs.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Membrane Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the membrane tape.Once you have the second sheet positioned correctly over the membrane tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Rope, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol CM3 Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape. Alternatively, a slim Flooring Membrane such as Newton 601 Slimline Membrane or Platon Stop Membrane can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens.For Damp ProofingWhen Using As A Damp Proof MembranePreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and Wykamol CM3 Membrane can be fitted directly over. Loose or crumbling render should be removed.If evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membrane.If any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialist.If a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Membrane ready for the concrete placement.Cutting to Size:Wykamol CM3 Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or vertically.Fit the edge of the next length of membrane adjacent to the previous sheet with a butt-joint. Overtape the butt-joint with Wykamol Corner Strip Tape.Wykamol CM3 Membrane can be taken round corners. Try to fit the membrane square with neat creases to the internal and external corners. Where the membrane starts to be misshapen due to the contours of the wall, cut the membrane and start again with a new butt-joint secured with Wykamol Corner Strip Tape.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture prior to the application of the Wykamol Corner Strip Tape.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the membrane.Wykamol CM3 Membrane is fitted to the wall with the studs facing the wall and the flat surface facing inwards towards the applicator. Fix the membrane to the wall with the CM Brick Plugs to all substrates except to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 Membrane can be fitted horizontally or vertically. Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used.Using a 10mm SDS Drill Bit, drill through the membrane into the wall to a depth of at least 60mm.Fix only as many plugs as are required to fix the membrane neatly to the wallIf fixings are required for fixing of timber battens, brackets for Gypliner type dry-lining frame or wall ties, add further plugs to the correct centres required for the wall lining.Hammer the plugs home using a wide headed hammer such as a lump hammer or mallet.Fit Wykamol CM3 Membrane to return walls to isolate wall finishes from dampness transmitting from the main wall being treated.Wykamol CM3 Membrane can be taken into reveals.Using CM Brick Plugs for Fixing:CM Brick Plugs have a hollow core that is designed to receive 5mm self-tapping screws. Use either plug to secure timber battens or locating brackets from wall lining systems. Heavier items can be supported by screwing a piece of chipboard to the plugs at fairly close centres and then fixing the heavier item to the chipboard in a conventional wayFixing Heavier Objects to the Wall:Heavier objects should be attached to the wall using resin anchors. Seal around the resin anchor with Newton 801-M Mastic Sealant.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP):BBA Certificate: shopify_GB_6577644896355 shopify_GB_6577644896355_39388281372771 new 152.76 GBP145.50 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1008_grande.jpg?v=1621607211 Wykamol Group WYCM3K2S Basement Waterproof Membrane Kit 12.5 kg Wykamol Group Wykamol CM3 Waterproof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-waterproof-membrane?variant=31807179096163 Wykamol CM3 Waterproof Membrane is a High Quality, 3mm Stud Cavity Drain Membrane suitable for Waterproofing of Walls, Floors, Vaults and Tunnels. With its 3mm Stud, Wykamol CM3 Waterproof Membrane is ideal for when space is tight, such as with stairs or low headroom.Wykamol CM3 Membrane is suitable for use in both below-ground 'Type C' Waterproofing Applications and for above-ground Damp Proofing Applications while delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.  Wykamol CM3 Membrane is supported by BBA Certification Certificate Number 18/5595.Available in (W) 2.0M x (L) 10M - (20M²) and (W) 2.0M x (L) 20M - (40M²) Rolls.DescriptionFor use as a 'Type C' Waterproofing Membrane: As a Waterproof Membrane, Wykamol CM3 Membrane is suitable for the 'Type C' Waterproofing of earth retained walls, floors, vaults and tunnels below ground level (i.e basements).Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years, delivering a Grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.For use as a Damp Proofing Membrane:As a Damp Proof Membrane, Wykamol CM3 Membrane can be used above ground level, as an alternative to meshed membranes where a meshed surface is NOT required, typically where the wall finish to the damp proof membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedSuitable for use in Above Ground (Damp Proofing) and Below Ground (Basement Waterproofing) applications.Does not require extensive and damaging preparation to the wall surface.Only 3mm in thickness and so is ideal for when space is tight, such as with stairs or low headroom.Speed of installation.Provides vapour control and, when used with humidity control systems, is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009 and NHBC Chapter 5.4.Creates a dry, habitable living space in areas previously suffering from damp / wet conditions.Waterproof, Salt Inhibiting, Root and Contaminate resistant.Technical Data:Membrane MaterialHDPEMembrane Thickness0.6mmStud Depth3.0mmDensity500g/m²Softening Temperature126°CService Temperature-50°C to +80°CTensile Strength MD (BS 12311-2)418 NTensile Strength CD (BS 12311-2)488 NWater Vapour Resistance>3020 MNs/gResistance to Static Loading (BS 12730)>20 KgResistance to Fire (BS EN 13501-1)Class FLife ExpectancyLifetime of Structure For WaterproofingWhen Using As A 'Type C' Basement Waterproof MembranePreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding. Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM3 Membrane. This reduces potential damage to masonry and timber etc.Application on Walls:Wykamol CM3 should be installed by those with experience of structural waterproofing.It is recommended that Wykamol CM3 and its ancillary products be installed by contractors trained for the correct use and specification of the product.Wykamol CM3 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape or Wykamol Corner Strip Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. These plugs have a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm drill bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. CM Brick Plugs will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Newton 503 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plugs for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application on Floors:Drainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.A Flooring Membrane can also be installed over the floor in above ground situations to provide isolation from damp floors either as the primary DPM or above green concrete to accelerate the contract program.The concrete will continue to cure below the dry membrane surface allowing for floor finishes to be laid above the membrane much quicker than normal.Methods of Drainage For Floor Membranes:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a sump chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point. Wykamol Waterguard Drainage Channel: Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Seal the Wykamol CM3 Membrane to the up-stand of the Wykamol Waterguard perimeter drainage channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Application to Vaults:A ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. Use CM Brick Plugs (Without the Rubber Sealing Washers) but instead with a seal made from Wykamol Rope for application to vaulted ceilings.NOTE: The Rubber Sealing Washers should not be used with the CM Brick Plugs for this application as the washers are not suitable for this purpose.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where these membranes are to be installed in vaulted cellars, our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.Again, the CM Brick Plugs (Excluding the Rubber Seals) with Wykamol Rope should be used to seal the plugs.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Membrane Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the membrane tape.Once you have the second sheet positioned correctly over the membrane tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Rope, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol CM3 Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape. Alternatively, a slim Flooring Membrane such as Newton 601 Slimline Membrane or Platon Stop Membrane can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens.For Damp ProofingWhen Using As A Damp Proof MembranePreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and Wykamol CM3 Membrane can be fitted directly over. Loose or crumbling render should be removed.If evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membrane.If any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialist.If a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Membrane ready for the concrete placement.Cutting to Size:Wykamol CM3 Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or vertically.Fit the edge of the next length of membrane adjacent to the previous sheet with a butt-joint. Overtape the butt-joint with Wykamol Corner Strip Tape.Wykamol CM3 Membrane can be taken round corners. Try to fit the membrane square with neat creases to the internal and external corners. Where the membrane starts to be misshapen due to the contours of the wall, cut the membrane and start again with a new butt-joint secured with Wykamol Corner Strip Tape.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture prior to the application of the Wykamol Corner Strip Tape.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the membrane.Wykamol CM3 Membrane is fitted to the wall with the studs facing the wall and the flat surface facing inwards towards the applicator. Fix the membrane to the wall with the CM Brick Plugs to all substrates except to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 Membrane can be fitted horizontally or vertically. Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used.Using a 10mm SDS Drill Bit, drill through the membrane into the wall to a depth of at least 60mm.Fix only as many plugs as are required to fix the membrane neatly to the wallIf fixings are required for fixing of timber battens, brackets for Gypliner type dry-lining frame or wall ties, add further plugs to the correct centres required for the wall lining.Hammer the plugs home using a wide headed hammer such as a lump hammer or mallet.Fit Wykamol CM3 Membrane to return walls to isolate wall finishes from dampness transmitting from the main wall being treated.Wykamol CM3 Membrane can be taken into reveals.Using CM Brick Plugs for Fixing:CM Brick Plugs have a hollow core that is designed to receive 5mm self-tapping screws. Use either plug to secure timber battens or locating brackets from wall lining systems. Heavier items can be supported by screwing a piece of chipboard to the plugs at fairly close centres and then fixing the heavier item to the chipboard in a conventional wayFixing Heavier Objects to the Wall:Heavier objects should be attached to the wall using resin anchors. Seal around the resin anchor with Newton 801-M Mastic Sealant.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP):BBA Certificate: shopify_GB_4422208192611 shopify_GB_4422208192611_31807179096163 new 148.68 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/PlatinumCV31_grande.jpg?v=1602244876 Wykamol Group WYCM32020 Basement Waterproof Membranes (W) 2.0M x (L) 20M (40M²) US 20.0 kg Wykamol Group Wykamol CM3 Waterproof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-waterproof-membrane?variant=31807179128931 Wykamol CM3 Waterproof Membrane is a High Quality, 3mm Stud Cavity Drain Membrane suitable for Waterproofing of Walls, Floors, Vaults and Tunnels. With its 3mm Stud, Wykamol CM3 Waterproof Membrane is ideal for when space is tight, such as with stairs or low headroom.Wykamol CM3 Membrane is suitable for use in both below-ground 'Type C' Waterproofing Applications and for above-ground Damp Proofing Applications while delivering a Grade 3 Environment to BS8102:2009 and NHBC Chapter 5.4.  Wykamol CM3 Membrane is supported by BBA Certification Certificate Number 18/5595.Available in (W) 2.0M x (L) 10M - (20M²) and (W) 2.0M x (L) 20M - (40M²) Rolls.DescriptionFor use as a 'Type C' Waterproofing Membrane: As a Waterproof Membrane, Wykamol CM3 Membrane is suitable for the 'Type C' Waterproofing of earth retained walls, floors, vaults and tunnels below ground level (i.e basements).Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years, delivering a Grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.For use as a Damp Proofing Membrane:As a Damp Proof Membrane, Wykamol CM3 Membrane can be used above ground level, as an alternative to meshed membranes where a meshed surface is NOT required, typically where the wall finish to the damp proof membrane is timber battens, a dry-lining frame or block wall.Wykamol CM3 Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedSuitable for use in Above Ground (Damp Proofing) and Below Ground (Basement Waterproofing) applications.Does not require extensive and damaging preparation to the wall surface.Only 3mm in thickness and so is ideal for when space is tight, such as with stairs or low headroom.Speed of installation.Provides vapour control and, when used with humidity control systems, is capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2009 and NHBC Chapter 5.4.Creates a dry, habitable living space in areas previously suffering from damp / wet conditions.Waterproof, Salt Inhibiting, Root and Contaminate resistant.Technical Data:Membrane MaterialHDPEMembrane Thickness0.6mmStud Depth3.0mmDensity500g/m²Softening Temperature126°CService Temperature-50°C to +80°CTensile Strength MD (BS 12311-2)418 NTensile Strength CD (BS 12311-2)488 NWater Vapour Resistance>3020 MNs/gResistance to Static Loading (BS 12730)>20 KgResistance to Fire (BS EN 13501-1)Class FLife ExpectancyLifetime of Structure For WaterproofingWhen Using As A 'Type C' Basement Waterproof MembranePreparation:When used in new construction, the concrete slab must be laid in accordance with BS 8204-1:2003+A1:2009 to achieve a flat surface not deviating more than 5mm from the underside of a 3000mm straight edge.Unsound plaster, render or screed should be removed and surfaces made level, with floors to the above tolerances. This can be achieved using Universal Mortar, or a 3:1 sand:cement mix incorporating Renderproof Waterproofing Additive.Leave all new works to dry thoroughly before any membranes are fixed.In case of walls suffering from mould or masonry fungi, prior to fixing the membrane, remove surface contamination by brushing, then apply a Masonry Biocide in line with the relevant Technical Data SheetIf Dry Rot (Serpula Lacrymans) is present in the walls, this will require detailed assessment before proceeding. Above ground level it is recommended, that where possible, all sources of moisture are alleviated at the source using a DPC such as Ultracure, before applying Wykamol CM3 Membrane. This reduces potential damage to masonry and timber etc.Application on Walls:Wykamol CM3 should be installed by those with experience of structural waterproofing.It is recommended that Wykamol CM3 and its ancillary products be installed by contractors trained for the correct use and specification of the product.Wykamol CM3 is fixed with the studs against the wall to create an air / depressurisation gap.The membrane can be fixed either vertically or horizontally. When making this decision, you will need to take into account the size of the area to be lined, and the height of the walls relative to the width of the membrane. Horizontal fixing requires less cuts and jointing but the full roll is very heavy at first. Vertical fixing has much lighter strips to fix, but requires that each of these is taped back together again. You may find that vertical fixing is easier, but requires more Wykamol Membrane Tape or Wykamol Corner Strip Tape for jointing.The membrane is fixed to the wall with the Wykamol CM Brick Plugs. These plugs have a soft rubber sealing washer fitted to the plug for sealing to the wall membrane.Place the membrane in position as level as you can judge by eye. Using a 10mm drill bit, drill through the centre of a stud near the top and edge to a depth greater than the fixing.The fixing is then hammered into the pre-drilled hole until the plug sits flush in the stud. The rubber washer re-seals the hole. Level the membrane using the spirit level or laser level if used, and fix another plug about 2 metres along at the top of the sheet. The membrane will now be hanging level to the wall.If you are fixing horizontally, continue fixing every 2 metres until you have reached the end of the roll or you have covered all of the wall(s) to be treated. It is very important to regularly check the level. If the membrane is not level, you may well find that the membrane is kinked and looks unsightly, it will also dive down when fitted around corners.If you are fixing vertically, hang each subsequent sheet by the two fixings as described above.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Fixing Centres:Once the wall membrane is hanging from the top fixings the rest of the fixing plugs need to be fixed.The spacing of these fixings is dependant on the type of wall finish to be used:Timber Battens - 600mm centres vertically and 400mm horizontally.Barrel Vaults - Tighter centres 300mm around the vault and 600mm down the vault.Fixed Metal Track (Gypliner) - 800mm centres vertically and 600mm horizontally.Brick or Block Walls restrained to the retaining wall using ties should have the fixings at centres to provide the correct number of restraints at the correct centres.Free standing timber and metal frames and free standing block walls do not require specific fixing centres. In these cases use sufficient fixings to ensure the membrane is neat and tidy and reasonably tight to the wall, especially around corners and reveals.When fixing the system to vaulted soffits you must ensure that enough fixings are used to keep the wall membrane tight to the soffits with no sagging.All fixings should be in line both horizontally and vertically.Battens:Battens should be pre-treated and of a minimum dimension of 25mm x 38mm although you may find that 25mm x 50mm offers better fixing at the edge of the plasterboard.The battens can be fixed into CM Brick Plugs without piercing the membrane, by using 5mm (size 10) self-tapping screws. CM Brick Plugs will take 30mm of screw, so be sure to purchase the correct length for the thickness of batten.Over-tightening of over length screws can loosen the plug. Be very careful not to puncture the wall membrane when drilling and fixing the battens. Battens should be fixed so that all plasterboard edges are supported. Use a Timber Treatment to protect cut battens.Once the battens are fitted into position, plasterboard can be fixed to them using clout nails or preferably plasterboard screws. Care should be taken not to exceed the depth of the battens with the screws, and thereby puncture the membrane.Alternative Fixings:Other finishes may be employed depending on the requirements of the specifier.Free Standing Frame:This method should be employed if the wall is undulating, as with some stone structures or where space loss is a secondary consideration. The frame would be fixed to the soffit and the floor finish with the supplied ‘U’ channels.With the increasing requirement of insulation to meet Part ‘L’ of building code, the use of these frames is becoming more popular, the thickness of insulation required is often in excess of the thickness of the frame, and so the use of these frames does not add extra depth to the wall build when using this method.Because the frame is free standing and has no relationship with the wall membrane, very few fixings are required and so this wall finish above allows for the fastest and most efficient method of fixing Newton 503 to the wall.Proprietary Fixing Systems:Fixing systems such as Gypliner or Lafarge can be used. It is also possible to use metal profile systems when constructing new internal walls.Internal Block Walls:If preferred the system can provide a water and vapour proof barrier, and then be lined with a block or brick inner skin. Special ties are available that fit into the CM Brick Plugs for lateral restraint of the internal wall. The ties and retaining clips can also be used for the fixing and holding in place the wall insulation.Application on Floors:Drainage Requirements:When used in a full or part earth-retaining situation, the membrane system must be drained.To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.A Flooring Membrane can also be installed over the floor in above ground situations to provide isolation from damp floors either as the primary DPM or above green concrete to accelerate the contract program.The concrete will continue to cure below the dry membrane surface allowing for floor finishes to be laid above the membrane much quicker than normal.Methods of Drainage For Floor Membranes:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a sump chamber or a form of safe natural drainage. Standing water can block the membrane with silt or limescale so it is important for water to flow uninterrupted to the drainage point. Wykamol Waterguard Drainage Channel: Wykamol Waterguard Channel is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard Channel is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc. It can also be maintainable by inserting Wykamol Flexi Jetting Eyes into the system.Installation:Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet.Wykamol CM3 does not have a flange, so a butted joint is used.Starting at one side of the room, unroll the membrane with the studs down. The next membrane width is rolled out so that edges of the two rolls meet at a ‘butt joint’. Clean both edges.Wykamol Corner Strip Tape (150mm wide) is then applied above the butted joint to join the two widths of membrane. This process is repeated until all areas are covered.Apply more pressure with the palm of your hand to further seal the whole of the joint. A Hot Air Gun should be used to help sealing, especially in cold or damp conditions.Seal the Wykamol CM3 Membrane to the up-stand of the Wykamol Waterguard perimeter drainage channel with Wykamol Corner Strip Tape. Use a heat-gun to dry the membrane surface and to assist with the bonding of the tapes.Where the floor membrane is required to be jointed to horizontal DPC’s, such as DPC Roll, through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality MS or SMX Polymer Adhesive. If necessary, a patch of membrane or Damp Proof Course (DPC) is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape. It should be noted that protrusions through the floor slab / raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Fast Track Application of Floor Finishes:Following the installation of new concrete slabs and screeds, it is normal to expect lengthy drying periods before floor finishes can be applied.The membranes can be laid onto green concrete as soon as it is ‘walkable’, allowing instant application of floor coverings without reference to RH levels.The construction moisture is controlled in the air gap.Application to Vaults:A ceiling which is to be covered, as in a vaulted cellar construction, should be fixed and lapped in such a way so that water does not pond behind the system.The laps and joints should also be detailed correctly to allow correct drainage, and prevent water from sitting on joints. Use CM Brick Plugs (Without the Rubber Sealing Washers) but instead with a seal made from Wykamol Rope for application to vaulted ceilings.NOTE: The Rubber Sealing Washers should not be used with the CM Brick Plugs for this application as the washers are not suitable for this purpose.Where flat soffits are being considered it is imperative that they should have a fall in line with drainage requirements.Again, sagging of the membrane should be avoided to prevent ponding.Application:Where these membranes are to be installed in vaulted cellars, our experience shows that the best method of application is as follows:Measure the depth of the vault from front to back wall and allow for a down turn at each end of 200mm. Unroll the sheet and cut to size.Estimate the approximate centre of the arched ceiling and mark it. Measure down the arch 1.2 meters from there and again mark it. Strike a horizontal line along the wall from back to front. This will give you a guide line for your sheet edge as you fix it along the length of the ceiling, thereby keeping your sheet sections symmetrical. You may wish to hammer in masonry nails to the guide line to give a physical edge to the guide line.Offer up your first section of membrane to the ceiling allowing a lap to the back wall of 200mm. Using your guide line to keep the sheet square, drill and fix the sheet along the apex of the arch following the same line of studs.Again, the CM Brick Plugs (Excluding the Rubber Seals) with Wykamol Rope should be used to seal the plugs.The fixings should be fixed through the centre of the membrane studs at approximately 600mm centres.It should be remembered that the plugs provide the fixing points for your battens; therefore they should be kept in line.Your next section of membrane is again cut to size allowing a 200mm lap at each end. Before offering up the next sheet, a Wykamol Membrane Tape joint should be applied to the edges of the first sheet, either on the flanged edge or between the last two rows of studs on the none-flanged edge.With the protective paper left on the tape you can now offer up the next sheet ensuring that you use the flanged edge to overlap onto the membrane tape.Once you have the second sheet positioned correctly over the membrane tape, remove the protective paper working out from the middle and effect a seal.You can now carry on fixing the sheet as previously described. This process is repeated until you have covered the arched walls to the springer and the vertical walls below the springer, maintaining a 200mm lap to the end walls.Vaults - End Walls:At the end walls of the vaulted construction an ‘end piece’ of flat membrane is fitted to the end wall of the vault. The 200mm lap from the soffit membrane is cut in fans to fit the curve and sit neatly against the wall, filling each cut with a small piece of Wykamol Rope or Wykamol Membrane Tape. Do not make the cuts all the way up to the ceiling and make as few cuts as possible.Measuring the highest point of the arch, the ‘end piece’ membrane is cut to size and fixed to the end walls in front of the fanned ceiling membrane. The membrane is then trimmed to fit neatly into the curve of the ceiling.The end wall membrane is then pulled back at the sides and around the arch to expose the studs on the reverse side.Using Wykamol Rope, a joint is made by the same method at the stud / stud joint details, with the exception that around the arch the rope should follow the contour of the ceiling curve.Door Reveals:When you fit the Wykamol CM3 Membrane to the end wall with the door opening, please bear in mind that you will have to fit a section of membrane around the door head and lapped down the sides by approximately 100mm.You can then wrap the wall membrane around the sides, maintaining the correct drainage detail and forming an overlap.This application detail will produce a small gap on the angle of the door opening.This should be sealed using Wykamol Corner Strip Tape. Alternatively, a slim Flooring Membrane such as Newton 601 Slimline Membrane or Platon Stop Membrane can be used a flat DPC in lieu of the studded membrane if space is limited.Overhead Intrusions:Where service pipes, electrical wiring or other intrusions occur overhead or around the arch, these should be re-sited to a vertical surface where they can be better sealed and re-situated on the dry side of the system.Most services can be concealed between the battens.For Damp ProofingWhen Using As A Damp Proof MembranePreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and Wykamol CM3 Membrane can be fitted directly over. Loose or crumbling render should be removed.If evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membrane.If any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialist.If a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Membrane ready for the concrete placement.Cutting to Size:Wykamol CM3 Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or vertically.Fit the edge of the next length of membrane adjacent to the previous sheet with a butt-joint. Overtape the butt-joint with Wykamol Corner Strip Tape.Wykamol CM3 Membrane can be taken round corners. Try to fit the membrane square with neat creases to the internal and external corners. Where the membrane starts to be misshapen due to the contours of the wall, cut the membrane and start again with a new butt-joint secured with Wykamol Corner Strip Tape.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture prior to the application of the Wykamol Corner Strip Tape.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the membrane.Wykamol CM3 Membrane is fitted to the wall with the studs facing the wall and the flat surface facing inwards towards the applicator. Fix the membrane to the wall with the CM Brick Plugs to all substrates except to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 Membrane can be fitted horizontally or vertically. Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used.Using a 10mm SDS Drill Bit, drill through the membrane into the wall to a depth of at least 60mm.Fix only as many plugs as are required to fix the membrane neatly to the wallIf fixings are required for fixing of timber battens, brackets for Gypliner type dry-lining frame or wall ties, add further plugs to the correct centres required for the wall lining.Hammer the plugs home using a wide headed hammer such as a lump hammer or mallet.Fit Wykamol CM3 Membrane to return walls to isolate wall finishes from dampness transmitting from the main wall being treated.Wykamol CM3 Membrane can be taken into reveals.Using CM Brick Plugs for Fixing:CM Brick Plugs have a hollow core that is designed to receive 5mm self-tapping screws. Use either plug to secure timber battens or locating brackets from wall lining systems. Heavier items can be supported by screwing a piece of chipboard to the plugs at fairly close centres and then fixing the heavier item to the chipboard in a conventional wayFixing Heavier Objects to the Wall:Heavier objects should be attached to the wall using resin anchors. Seal around the resin anchor with Newton 801-M Mastic Sealant.Data SheetsTechnical Data Sheet:Declaration of Performance (DoP):BBA Certificate: shopify_GB_4422208192611 shopify_GB_4422208192611_31807179128931 new 100.20 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/PlatinumCV31_grande.jpg?v=1602244876 Wykamol Group WYCM32020-10 Basement Waterproof Membranes (W) 2.0M x (L) 10M (20M²) US 10.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061780579 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061780579 new 36.42 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0997_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K1 Damp Proof Membrane Kit 4.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061813347 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061813347 new 55.92 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0997_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K2 Damp Proof Membrane Kit 7.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061846115 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061846115 new 76.32 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0996_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K3 Damp Proof Membrane Kit 9.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061878883 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061878883 new 91.92 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0996_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K4 Damp Proof Membrane Kit 12.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061911651 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061911651 new 127.44 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0995_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K5 Damp Proof Membrane Kit 14.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061944419 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061944419 new 155.04 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0995_grande.jpg?v=1618412915 Wykamol Group WYCM3M1K6 Damp Proof Membrane Kit 17.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323061977187 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323061977187 new 104.46 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0996_grande.jpg?v=1618412915 Wykamol Group WYCM3M3K2 Damp Proof Membrane Kit 12.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323062009955 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323062009955 new 183.66 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0995_grande.jpg?v=1618412915 Wykamol Group WYCM3M3K1 Damp Proof Membrane Kit 24.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323062042723 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323062042723 new 155.04 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0995_grande.jpg?v=1618412915 Wykamol Group WYCM3M2K2 Damp Proof Membrane Kit 17.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings Only) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit?variant=39323062075491 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Membrane, supplied with the recommended number of Fixings (Wykamol Plaster Membrane Plugs) and a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The fixings in this kit are not supplied with a fitted sealing washer. If dampness is a 'high' risk then we recommend the CM3 MESH Waterproof Membrane Kit (With Sealing Washers).The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Fixing Plugs Only)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Plaster Membrane Plugs 1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Plaster Membrane Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Plaster Membrane Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Plaster Membrane Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs WITHOUT a Sealing Washer. In some cases, where dampness is a greater risk, you may require a fixing fitted with a damp proof seal around the plug head, see the CM3 MESH Membrane Kit (With Sealing Washers).Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Plaster Membrane Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554456490083 shopify_GB_6554456490083_39323062075491 new 291.78 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0995_grande.jpg?v=1618412915 Wykamol Group WYCM3M2K1 Damp Proof Membrane Kit 25.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322304839779 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322304839779 new 40.92 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0998_grande.jpg?v=1618344313 Wykamol Group WYCM3M1K1SW Damp Proof Membrane Kit 4.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322304905315 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322304905315 new 63.42 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0998_grande.jpg?v=1618344313 Wykamol Group WYCM3M1K2SW Damp Proof Membrane Kit 7.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322304970851 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322304970851 new 85.80 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0999_grande.jpg?v=1618344313 Wykamol Group WYCM3M1K3SW Damp Proof Membrane Kit 9.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322305036387 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322305036387 new 102.72 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0999_grande.jpg?v=1618344313 Wykamol Group WYCM3M1K4SW Damp Proof Membrane Kit 12.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322305101923 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322305101923 new 144.12 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1000_grande.jpg?v=1618344304 Wykamol Group WYCM3M1K5SW Damp Proof Membrane Kit 14.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322305200227 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322305200227 new 177.54 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1000_grande.jpg?v=1618344304 Wykamol Group WYCM3M1K6SW Damp Proof Membrane Kit 17.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322343800931 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322343800931 new 118.32 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_0999_grande.jpg?v=1618344313 Wykamol Group WYCM3M3K2SW Damp Proof Membrane Kit 12.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322344620131 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322344620131 new 214.80 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1000_grande.jpg?v=1618344304 Wykamol Group WYCM3M3K1SW Damp Proof Membrane Kit 24.0 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322305265763 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322305265763 new 177.54 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1000_grande.jpg?v=1618344304 Wykamol Group WYCM3M2K2SW Damp Proof Membrane Kit 17.5 kg Wykamol Group Wykamol CM3 MESH Waterproof Membrane Kit (With Fixings & Sealing Washers) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-damp-proof-membrane-kit-with-seals?variant=39322305331299 A high quality Waterproof & Damp Proof Membrane Kit using Wykamol CM3 MESH Waterproof Membrane, supplied with the recommended number of Wykamol Ultimate Plaster Plugs (fitted with Sealing Washers) which provide a Damp Proof Seal around the plug head.Each kit size is also supplied with a high quality (W) 8mm x (L) 160mm SDS Drill Bit.The Wykamol CM3 MESH Waterproof Membrane Kit can be purchased in many different sizes from 2.5M² to 40M², use the drop-down box option below to choose your preferred kit size.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Waterproof Membrane Kit (With Sealing Washers)Wykamol CM3 Mesh is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 Mesh is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 Mesh is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 Mesh is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Kit Contents:Wykamol CM3 Mesh Waterproof Membrane KitKit SizeMembrane Roll SizeNo. of FixingsNo. of SDS Drill Bits2.5M² Kit(W) 1.0M x (L) 2.5M40 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm5M² Kit(W) 1.0M x (L) 5M80 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 7.5M² Kit(W) 1.0M x (L) 7.5M120 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 10M² Kit(W) 1.0M x (L) 10M160 x Wykamol Ultimate Plaster Plugs1 x SDS Bit(W) 8mm x (L) 160mm 12M² Kit(W) 1.2M x (L) 10M200 x Wykamol Ultimate Plaster Plugs1 x SDS Bits(W) 8mm x (L) 160mm15M² Kit(W) 1.0M x (L) 15M240 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 20M² Kit(W) 1.0M x (L) 20MOR(W) 2.0M x (L) 10M320 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm 24M² Kit(W) 1.2M x (L) 20M400 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm40M² Kit(W) 2.0M x (L) 20M650 x Wykamol Ultimate Plaster Plugs2 x SDS Bits(W) 8mm x (L) 160mm Note: This version of the CM3 MESH Damp Proof Membrane Kit is supplied with Fixing Plugs fitted with a Sealing Washer. In some cases, where dampness is not at great risk, you may only require a basic fixing on its own, see the CM3 MESH Membrane Kit with Fixings Only.Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 Mesh can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 Mesh. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 Mesh will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 Mesh prior to the laying of the floor slab with the floor DPM extending upwards in front of the Wykamol CM3 Mesh ready for the concrete pour.Cutting to Size:Wykamol CM3 Mesh can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 Mesh can be taken round corners. On particularly difficult shaped corners, cut the Wykamol CM3 Mesh and butt joint and seal as above.Wykamol Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 Mesh to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton 801-M Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 Mesh should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 Mesh.Wykamol CM3 Mesh is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with the Wykamol Ultimate Plaster Plugs to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Platinum Cob Plug should be used.Wykamol CM3 Mesh can be fitted horizontally or verticallyFit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 Mesh is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or renderingUsing a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of at least 65mm.Hammer the fixing plug home, the washer will seal between the plug and the membrane and so prevent migration of dampness and salting from the substrate to the wall finish.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 Mesh 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 Mesh can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 Mesh is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 Mesh as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 Mesh and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 Mesh is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 Mesh by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 Mesh.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK building code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Damp Proofing Membrane, such as Wykamol CM3 Membrane, with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_6554293665891 shopify_GB_6554293665891_39322305331299 new 336.90 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/DSC_1000_grande.jpg?v=1618344304 Wykamol Group WYCM3M2K1SW Damp Proof Membrane Kit 25.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541502563 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541502563 new 132.30 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020 Damp Proof Membranes (W) 1.0M x (L) 20M - (20M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541666403 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541666403 new 31.50 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020-025 Damp Proof Membranes (W) 1.0M x (L) 2.5M - (2.5M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541633635 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541633635 new 48.54 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020-05 Damp Proof Membranes (W) 1.0M x (L) 5M - (5M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541600867 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541600867 new 66.18 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020-075 Damp Proof Membranes (W) 1.0M x (L) 7.5M - (7.5M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541535331 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541535331 new 78.78 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020-10 Damp Proof Membranes (W) 1.0M x (L) 10M - (10M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541568099 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541568099 new 110.28 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1020-15 Damp Proof Membranes (W) 1.0M x (L) 15M - (15M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541731939 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541731939 new 91.38 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1220-10 Damp Proof Membranes (W) 1.2M x (L) 10M - (12M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541699171 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541699171 new 156.24 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M1220 Damp Proof Membranes (W) 1.2M x (L) 20M - (24M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541797475 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541797475 new 132.30 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M2220-10 Damp Proof Membranes (W) 2.0M x (L) 10M - (20M²) US 0.0 kg Wykamol Group Wykamol CM3 MESH Damp Proof Membrane (3mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm3-mesh-membrane?variant=31778541764707 Wykamol CM3 MESH Membrane is a High Quality, 3mm Stud, Damp Proof Meshed Membrane comprising of HDPE Membrane with a rot-proof HDPE mesh on the surface of one side, perfect for damp proofing. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.  Wykamol CM3 MESH Membrane is supported by BBA Certification Certificate Number 18/5595.Wykamol CM3 MESH Membrane is available in 1.0 Metre, 1.2 Metre and 2.0 Metre Widths.Available in various Roll sizes ranging from 2.5M² to 40M².  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'DescriptionWykamol CM3 MESH Damp Proof MembraneWykamol CM3 MESH Membrane is a composite damp proof membrane comprising of HDPE membrane with a rot-proof HDPE mesh heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.Wykamol CM3 MESH Membrane is 0.5mm thick and has a pattern of raised 3mm studs. The studs face the wall and create air channels that allow for vapour equalisation to take place between the membrane and the wall.Wykamol CM3 MESH Membrane is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.Wykamol CM3 MESH Membrane is guaranteed against deterioration for 30 years and has a life expectancy of at least 50 years.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Benefits & Features:BBA ApprovedProvides a surface that is totally separated and unaffected by the dampness within the wall, ensuring that the wall finish will never be affected by moisture or saltsSuperb ‘key’ for renders or plastersCompletely moisture-resistant but allows vapour diffusionQuick and easy to installIn many cases the existing render can be left on the wallNo requirement for damaging preparation to the wall surfaceTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight0.505 Kg/m²Sheet Thickness0.7mmStud Height3mmColourBeige (Semi-Transparent)Water Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)250 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Clean the substrate to remove all loose debris and organic matter. Plaster should be removed as it can soften over time, which will weaken the fix of the membrane to the wall. If the wall render is in good condition, it does not have to be removed and the Wykamol CM3 MESH Membrane can be fitted directly over. If the render is damaged, local repairs may be requiredLoose or crumbling render should be removed and local repairs made. If the render is in very poor condition, all of it may need to be removedObtain as flat a surface as possible. If the wall is undulating, better results are produced if the wall surface is dubbed-out flat with sand & cement prior to installation of the membrane, rather than dubbing out over the top of Wykamol CM3 MESH Membrane. A flat, uniform surface to the substrate means that the plaster or render above Wykamol CM3 MESH Membrane will also be uniform and less likely to have cracking caused by differential thicknessesIf evidence of bacterial growth can be seen, use a fungicidal product prior to the fitting of the membraneIf any evidence of wet rot or dry rot is seen, have it dealt with by a qualified remedial specialistIf a new slab is to be laid as part of the works, it is preferable to fit Wykamol CM3 MESH Membrane prior to the laying of the floor slab with the floor DPM extending upwards in front of the Membrane ready for the concrete pour.Cutting to Size:Wykamol CM3 MESH Membrane can be cut with a sharp utility knife, scissors or shearsDecide whether the membrane is to be fitted horizontally or verticallyMembrane Jointing:Joints may be made horizontally or verticallyJoints are created by butt jointing the two edges together and then oversealing the joints with Wykamol Mesh Tape.Wykamol CM3 MESH Membrane can be taken round corners. On particularly difficult shaped corners, cut the CM3 MESH Membrane and butt joint and seal as above.The Mesh Tape should be firmly pressed into the mesh of the Wykamol CM3 MESH Membrane to facilitate the joint.In cold and damp conditions a heat gun should be used to gently evaporate surface moisture and then to assist in pressing the Mesh Tape into the mesh of the membraneSealing Around Protrusions:Where the membrane has to be cut around pipes or other protrusions, carefully cut the membrane around the protrusion and then seal around the protrusion with Newton® Sealing Mastic to ensure there is no bridging between the damp substrate and the new finish.Fixing to the Wall:Cut the membrane to size. Ideally, Wykamol CM3 MESH Membrane should be continued up into ceiling voids and down past the slab to the oversite. If this is not possible, cut the membrane so that it finishes tightly to the soffit and floor finish. A gap is not required at the soffit or floor, indeed the system works more efficiently when the system is not ventilated as this impedes the natural vapour drive from inside the property to the outside that still continues through the Wykamol CM3 MESH Membrane.Wykamol CM3 MESH Membrane is fitted to the wall with the studs facing the wall and the flat meshed surface facing inwards towards the applicator. Fix the membrane to the wall with Wykamol Ultimate Plaster Plugs. Or, if a seal is not required when fixing then use Wykamol CM Plaster Plugs instead.Fix the membrane to all substrates except when fixing to plywood or timber, when a galvanised clout nail should be used, or to slightly friable mortar substrate, when the Cob Plug should be used.Wykamol CM3 MESH Membrane can be fitted horizontally or vertically.Fit the membrane as level as possible - best results are achieved when a long builders level or a rotating laser level is used. Care must be taken to ensure that the Wykamol CM3 MESH Membrane is pulled tight and square while fixing as this will avoid sagging or bulging which can cause problems when plastering or rendering.Using a 7mm or 8mm drill bit (depending on substrate), drill through the membrane into the wall to a depth of the length of the Fixing Plug being used.Use a small number of fixings to initially fit the membrane to the wall as level as possible.Once the section of membrane is on the wall add the further fixingsHammer the plugs home using a wide headed hammer such as a lump hammer or malletA smaller-diameter bit can be used on softer substrate to ensure a tight fit for the plugFixing centres internally must not be greater than 250mmOn curved or uneven surfaces, closer fixings should be usedOn exposed areas closer fixings are recommended, to restrain possible thermal movementFit Wykamol CM3 MESH Membrane 300mm to return walls to isolate wall finishes from dampness transmitting from the main wall being treatedWykamol CM3 MESH Membrane can be taken into revealsFixing should not take place above 30°C and below -5°C.FinishingGeneral:Wykamol CM3 MESH Membrane is suitable for wall finishes including plaster, render, hydraulic lime or plasterboard bonded to the membrane with a propriety adhesive compound.Whilst cement based renders are prone to cracking, careful application can reduce or avoid this. Problems occur when the scratch coat has not been allowed to fully cure prior to the float coat being applied, but the most common problem we see is where the render has not been allowed to fully cure due to accelerated drying. It is extremely important that the render is slowly cured for a period of 7-10 days, longer if possible. The render gets its strength from the chemical processes that take place between the cement content and the added water. The cement needs the correct amount of water to be available to it during the whole of the curing period. If the render dries too quickly due to exposure to sunlight, wind or even dehumidification, the cement will not be able to react with water, producing a weak render that will be prone to cracking.The render should be dampened regularly during the curing process and protected from accelerated drying with hessian and plastic sheeting.Hairline cracking can be made good with fine fillers or alternatively a high-build masonry paint can be applied.DO NOT APPLY DECORATIONS UNTIL PLASTERS OR RENDERS ARE THOROUGHLY DRY.Finishing Profile:It is recommended that renders and plasters are raised from the floor by 20-25mm to prevent bridging from the floor. Newton 800 Finishing Profile, available in 2 metre lengths, should be fitted to the bottom of the Wykamol CM3 MESH Membrane as a plaster stop, guaranteeing that the plaster/render will stop short of the floor.Newton 800 Finishing Profile must be fixed at the same time as Wykamol CM3 MESH Membrane and therefore before the plaster or render is applied.Newton 800 Finishing Profile is not recommended where the run of wall is uneven or when the membrane is extended down past the slab. Once the finish has been applied and has dried, the 20-25mm gap to the bottom of the plaster / render should be covered by a timber skirting.Plastering:The recommended plaster for Wykamol CM3 MESH Membrane is Tarmac Whitewall One Coat. Please note that we do not recommend that this product is used in one single coat to our Mesh membranes.The application of the plaster should be in two coats: 6mm scratch coat, 6mm second or float coat. If a finish coat is required this should be of 3mm.Tarmac Whitewall should be applied in accordance with good plastering practice as described in BS 8481:2006, BS EN 13914-2:2005.Always allow 24 hours drying time between coats of plaster. For a high impact resistant finish, use Whitewall High Impact Backing Plaster.NOTE: Tarmac Whitewall and Tarmac Whitewall High Impact Backing Plaster are not suitable for areas of high humidity and wet areas such as swimming pool surrounds.Rendering:Render with a mix of sand, cement and lime should be applied in two coats using the procedures defined within BS EN 13914-1:2005 to a total thickness of 14mm. A 3mm skim coat of finishing plaster can be added once the render is fully curedThe scratch coat should be a mix of 1 part lime: 1 part cement: and 5 parts clean well-graded sharp sand. The second or float coat should be a mix of 1 part lime: 1 part cement: and 6 parts clean well graded sharp sand. The scratch coat should be 7mm and the second or float coat should be 7mm.To lessen incidents of cracking, it is best to mix the lime and sand a day or more before use. Cement can then be added at the time of rendering.The work should be of two coats of render and if required, a third coat of finishing plaster. The purpose of the 7mm scratch coat is to stiffen up the lath and to provide rough and absorbent, backing for subsequent coats. Work this scratch coat well into the mesh. Each 7mm coat of render should be allowed to dry for a period of not less than seven, preferably ten days, longer if possible. Cracking may occur if shorter time is allowed between coats.It is important that the render coats are allowed to cure correctly over the 7 to 10 day period with the render dampened as required. If the scratch coat has not fully cured, slumping of the render can result.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is fully cured. The surface will cure quite quickly but the area behind the mesh must be fully cured also.In warm periods the render should be protected from excessive drying out by covering with damp hessian sheets and plastic sheeting over it.Dampen down the scratch coat before application of the float coat. A smooth finish is not recommended. Expansion joints should be trowelled in through the render to the membrane. These joints must be filled with a suitable flexible polymer-based sealant. Expanded metal angle beads and stop beads can be fixed where appropriate using dabs of the same material mixed as for the scratch coat.Hydraulic Lime:NHL (Natural Hydraulic Lime) 3.5 should be used to a combined depth of 20mm with a 10mm scratch coat and a 10mm second or float coat. The mix ratio is 2.5 parts sand to 1 part NHL, 3.5 mixed as per manufacturers instructions. The 10mm scratch coat is pushed firmly into the membrane mesh.Check the application the day after and rub out any cracks. The surface should be thoroughly scratched without breaking the surface of the mesh. The scratch coat has to be left for a minimum of 7 days to set. It should be protected from draughts and extremes of temperature.Before applying the second or float coat, carefully drill or scratch out a small section into an area behind the mesh, within the membrane stud, to confirm that it is set and reasonably hard. The surface will cure quite quickly but the area behind the mesh that has to be set.The second coat is the float coat and is applied then ruled off to flatten the wall surface. The mix ratio is 2.5 parts sand to 1 part NHL 3.5 mixed as per manufacturers instructions.The scratch coat has to be dampened down before application of the float coat.The work has to be protected and tended as per the scratch coat. The second coat is floated or trowelled so a finish coat or a further coat can be appliedPlasterboard on Dabs:Plaster board panels can be fixed to Wykamol CM3 MESH Membrane by the dot and dab method, giving a dry surface ready for immediate decoration. ‘Dabs’ should be applied to the heads of the Plaster Plugs, board edges and membrane to cover 50% of the Wykamol CM3 MESH Membrane.NOTE: We do not recommend that laminated or insulated plasterboard is dot & dabbed to meshed membranes. Laminated boards have to be fixed to the wall with a mechanical fixing at each side of the board, just above half way up, so that the board does not come apart and block exits during a fire. This is a requirement of UK Building Code. It is not possible to mechanically fix through the laminated board without puncturing the membrane. If insulation is required to the wall build, use a Non-Meshed Membrane Damp Proofing Membrane (such as Wykamol CM3 Cavity Drain Membrane), with an independently supported wall frame.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4420454416483 shopify_GB_4420454416483_31778541764707 new 249.48 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM3_Mesh_Membrane_1_grande.jpg?v=1602244729 Wykamol Group WYCM3M2220 Damp Proof Membranes (W) 2.0M x (L) 20M - (40M²) US 0.0 kg Wykamol Group Wykamol CM20 Waterproof Floor Membrane (20mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm20-waterproof-membrane?variant=31830026518627 Wykamol CM20 is a High Quality, 20mm Stud, Cavity Drain Basement Waterproofing Floor Membrane made from High Density Polyethylene (HDPE).Wykamol CM20 Membrane is used as a high drainage capacity floor membrane and is generally specified where it is anticipated that there may be a risk of severe water penetration.  Wykamol CM20 Waterproof Floor Membrane is supported by BBA Certification Certificate Number 18/5595.Supplied in 2.07M x 10M (20M²) Rolls.DescriptionWykamol CM20 Cavity Drain Floor MembraneWykamol CM20 Membrane is a Cavity Drain Waterproofing Membrane made from High Density Polyethylene (HDPE).With its 20mm deep stud profile, Wykamol CM20 Membrane is used as a high drainage capacity floor membrane and is generally specified where it is anticipated that there may be a risk of severe water penetration.Wykamol CM20 Membrane is suitable for Type C waterproofing while delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM20 Membrane has a life expectancy of at least the design life of the building. It is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalies, saline solutions and organic acids, and not affected by minerals and hydro-carbons. It is also impervious to root penetration, is rot-proof, and resistant to bacteria, fungi and other small organisms.Benefits & Features:BBA ApprovedPart of a Type C Cavity Drain Membrane System in Line With BS8102:2009Gives a High Water Void Volume of 14 Litres/m²Quick to Install - Easy to Roll Out Along FloorsCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeWaterproof, Salt Inhibiting, Root and Contaminate ResistantLittle or No Damage to the Existing StructureLow and High Temperature ToleranceHigh Grade MaterialTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight1kg/m²Sheet Thickness1mmStud Height20mmColourBlackWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)170 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Wykamol CM20 Membrane should only be used on floors. Before the system is installed, the area must be assessed to determine what preparation is required:All timber and other organic material must be removed to prevent risk of fungal or bacterial growth behind the System. If evidence of rot exists, this must be dealt with by a specialist contractor prior to installation of the system.Brush the floor clean and remove any sharp protrusions. Fill all non-structural cracks above 1mm wide, all structural cracks should be repaired or treated.New concrete should be treated with Platinum Lime Inhibitor which prevents free lime from the curing concrete being drawn out by ingressing water.Drainage RequirementsWhen used in a full or part earth-retaining situation, the membrane system must be drained. To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.Methods Of Drainage:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or lime scale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage ChannelWykamol Waterguard is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc.It can also be maintainable by inserting either Flexible Jetting Eyes or Extended Jetting Eyes into the system. Installation Method:It is very rare for water to pass through a solid concrete slab or concrete raft, but where the slab or raft is of questionable quality it is possible for water to pass through cracks in a poorly constructed floor. If the quality of the slab is questionable, Wykamol CM20 Membrane should be used as the floor membrane.Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the Wykamol CM20 Membrane to the up-stand of the perimeter drainage channel (i.e Wykamol Waterguard Channel) with Wykamol Corner Strip Tape.Where the floor membrane is required to be jointed to horizontal DPC’s through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services up through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality Hybrid Polymer Adhesive.If necessary, a patch of membrane or plain DPC is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape.It should be noted that protrusions through the floor slab/raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4433424711779 shopify_GB_4433424711779_31830026518627 new 141.12 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM20_Membrane_1_grande.jpg?v=1605883062 Wykamol Group WYCM2020-10 Basement Waterproof Membranes (W) 2.07M x (L) 10M (20M²) US 20.0 kg Wykamol Group Wykamol CM20 Waterproof Floor Membrane (20mm Stud) https://www.platinumchemicals.co.uk/products/wykamol-cm20-waterproof-membrane?variant=31830026551395 Wykamol CM20 is a High Quality, 20mm Stud, Cavity Drain Basement Waterproofing Floor Membrane made from High Density Polyethylene (HDPE).Wykamol CM20 Membrane is used as a high drainage capacity floor membrane and is generally specified where it is anticipated that there may be a risk of severe water penetration.  Wykamol CM20 Waterproof Floor Membrane is supported by BBA Certification Certificate Number 18/5595.Supplied in 2.07M x 10M (20M²) Rolls.DescriptionWykamol CM20 Cavity Drain Floor MembraneWykamol CM20 Membrane is a Cavity Drain Waterproofing Membrane made from High Density Polyethylene (HDPE).With its 20mm deep stud profile, Wykamol CM20 Membrane is used as a high drainage capacity floor membrane and is generally specified where it is anticipated that there may be a risk of severe water penetration.Wykamol CM20 Membrane is suitable for Type C waterproofing while delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4.Wykamol CM20 Membrane has a life expectancy of at least the design life of the building. It is inert and, therefore, non-polluting to drinking water, highly resistant to water, alkalies, saline solutions and organic acids, and not affected by minerals and hydro-carbons. It is also impervious to root penetration, is rot-proof, and resistant to bacteria, fungi and other small organisms.Benefits & Features:BBA ApprovedPart of a Type C Cavity Drain Membrane System in Line With BS8102:2009Gives a High Water Void Volume of 14 Litres/m²Quick to Install - Easy to Roll Out Along FloorsCreates a Dry, Habitable Living Space in Areas Previously Suffering From Damp / Wet ConditionsEasily Cut Down Using a Sharp BladeWaterproof, Salt Inhibiting, Root and Contaminate ResistantLittle or No Damage to the Existing StructureLow and High Temperature ToleranceHigh Grade MaterialTechnical Data:MaterialHigh Density Polyethylene (HDPE)Unit Weight1kg/m²Sheet Thickness1mmStud Height20mmColourBlackWater Tightness - 60 kPa; 24h (EN 1928)PassWorking Temperature-50°C to +80°CSoftening Temperature126°CTensile Strength MD (BS 12311-2)416 NTensile Strength CD (BS 12311-2)488 NResistance to Static Loading (BS 12730)>20 KgCompressive Strength (BS EN ISO 25619-2)170 kNReaction to Fire (BS EN 13501-1 :2007+A1:2009)Class EType of ApplicationType VLife ExpectancyLifetime of StructureInstallationPreparation:Wykamol CM20 Membrane should only be used on floors. Before the system is installed, the area must be assessed to determine what preparation is required:All timber and other organic material must be removed to prevent risk of fungal or bacterial growth behind the System. If evidence of rot exists, this must be dealt with by a specialist contractor prior to installation of the system.Brush the floor clean and remove any sharp protrusions. Fill all non-structural cracks above 1mm wide, all structural cracks should be repaired or treated.New concrete should be treated with Platinum Lime Inhibitor which prevents free lime from the curing concrete being drawn out by ingressing water.Drainage RequirementsWhen used in a full or part earth-retaining situation, the membrane system must be drained. To comply with BS 8102:2009, you must assume that the structure will be subjected to water ingress at some time.Methods Of Drainage:The drainage must effectively remove all water from below the membrane and take the water to a point of discharge such as a Sump Chamber or a form of safe natural drainage. Standing water can block the membrane with silt or lime scale so it is important for water to flow uninterrupted to the drainage point.Wykamol Waterguard Drainage ChannelWykamol Waterguard is placed at the wall / floor junction and collects water from behind the wall membrane and receives water at the wall / floor junction. Wykamol Waterguard is a designed method of removing water as it can interface with sump chambers, gullies, waste pipes etc.It can also be maintainable by inserting either Flexible Jetting Eyes or Extended Jetting Eyes into the system. Installation Method:It is very rare for water to pass through a solid concrete slab or concrete raft, but where the slab or raft is of questionable quality it is possible for water to pass through cracks in a poorly constructed floor. If the quality of the slab is questionable, Wykamol CM20 Membrane should be used as the floor membrane.Starting at one side of the room, unroll the membrane with the studs down and cut to fit the room as one would a carpet. The next membrane width is rolled out so that the flanged edge overlaps onto the edge of the previous roll of membrane. Clean both edges.Wykamol Membrane Tape is then applied to the high flat area between the first two studs at the edge of the previous roll of membrane with the backing paper still intact.Check the two widths for alignment, with the flange covering the backing paper.Starting from the end of the joint, remove the backing paper and press down on the joint sealing the two sections together. This process is repeated until all areas are covered. Seal the Wykamol CM20 Membrane to the up-stand of the perimeter drainage channel (i.e Wykamol Waterguard Channel) with Wykamol Corner Strip Tape.Where the floor membrane is required to be jointed to horizontal DPC’s through internal and external walls, these joints should be sealed with Wykamol Membrane Tape. Ensure both surfaces are clean and dry before attempting to make these joints.If there are any services up through the floor, the membrane can be cut and trimmed around them, and the gap filled and sealed using a high quality Hybrid Polymer Adhesive.If necessary, a patch of membrane or plain DPC is laid over and sealed to the service with Wykamol Rope, and around its perimeter with Wykamol Membrane Tape.It should be noted that protrusions through the floor slab/raft should be avoided wherever possible as they create weaknesses that allow unnecessary water ingress.The specified floor finish can now be laid directly over the floor membrane, which must not be punctured by any fixings through the floor. When a timber floor finish is preferred you must allow an expansion gap around the wall edge.Speak to the supplier of the floor finish to confirm the correct size of this expansion gap.Data SheetsTechnical Data SheetDeclaration of Performance (DoP)BBA Certificate shopify_GB_4433424711779 shopify_GB_4433424711779_31830026551395 new 252.00 GBPout of stock http://cdn.shopify.com/s/files/1/2617/5036/products/Wykamol_CM20_Membrane_1_grande.jpg?v=1605883062 Wykamol Group WYCM2020 Basement Waterproof Membranes (W) 2.07M x (L) 20M (40M²) US 20.0 kg Wykamol Group Wykamol CM Brick Plugs (Without Seals) https://www.platinumchemicals.co.uk/products/wykamol-cm-brick-plugs-without-seals?variant=32841012478051 Wykamol CM Brick Plugs can be used in Basement Waterproofing and Damp Proofing applications to secure Wykamol Waterproof Membranes to the base material, usually brickwork & concrete.A 10mm SDS Drill Bit should be used for application of Wykamol CM Brick Plugs.Plug Size: (W) 10mm x (L) 60mmSupplied in Packs of 100 Fixings.DescriptionWykamol CM Brick Plugs (Without Seals)Wykamol CM Brick Plugs are manufactured from glass filled polyamide which gives a high strength, corrosion resistant fixing.Application requires a drilling of a 10mm diameter hole through the membrane and into the solid base material.A central hole in the fixing will accept a woodscrew for securing timber battens for internal lining systems.Note: We would always recommend using a sealing product in conjunction with Wykamol CM Brick Plugs (i.e Wykamol Plug Seals or Wykamol Rope). shopify_GB_4663555915875 shopify_GB_4663555915875_32841012478051 new 21.60 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/BRICKPLUGS_7bb92fce-c2f8-479c-9417-0d37bbbf8b77_grande.jpg?v=1611857321 Wykamol Group WYCMBP100 Waterproof Membrane Ancillaries 1.0 kg Wykamol Group Wykamol CM Brick Plugs (With Seals) https://www.platinumchemicals.co.uk/products/wykamol-cm-brick-plugs-with-seals?variant=32840993439843 Wykamol CM Brick Plugs are High Quality Fixing Plugs used in Basement Waterproofing and Damp Proofing applications to secure Wykamol Waterproof Membranes to the base material, usually brickwork & concrete.A 10mm SDS Drill bit should be used for application of Wykamol CM Brick Plugs.Plug Size: (W) 10mm x (L) 60mmWasher Size: Accepts 10mm wide plug.Supplied in Packs of 100 Fixings.DescriptionWykamol CM Brick Plugs (With Seals)Wykamol CM Brick Plugs are manufactured from glass filled polyamide which gives a high strength, corrosion resistant fixing.The Sealing Washers are used in conjunction with Wykamol CM Brick Plugs to provide a watertight seal under the fixing head.Application requires a drilling of a 10mm diameter hole through the membrane and into the solid base material.A central hole in the fixing will accept a woodscrew for securing timber battens for internal lining systems. shopify_GB_4663550214243 shopify_GB_4663550214243_32840993439843 new 31.20 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/BRICKPLUGS_REDSEALS_grande.jpg?v=1611857258 Wykamol Group WYCMBPS100 Waterproof Membrane Ancillaries 1.0 kg Wykamol Group Wykamol Brunosol Concentrate 6X Masonry Dry Rot Treatment https://www.platinumchemicals.co.uk/products/brunosol-dry-rot-treatment-masonry?variant=7653399789598 Brunosol Concentrate 6X is a High Strength Surface Biocide for the treatment of Dry Rot (Serpula Lacrymans) on masonry and brickwork.FOR USE ONLY AS A BIOCIDE BY PROFESSIONAL OPERATORS.  Brunosol Concentrate 6X carries the HSE Approval No 7325.Supplied in 4.2 Litre Containers, concentrated solution, dilutes to make 25 litres.DescriptionBrunosol Concentrate 6XBrunosol Concentrate 6X is a High Strength water soluble surface biocide based on Sodium 2-phenyl phenoxide used for the treatment of Dry Rot (Serpula Lacrymans) on masonry and brickwork.Whilst Serpula Lacrymans does not derive nutrient from brickwork or masonry, viable spores or dormant vegetative growth within the structure can act as a source of re-infestation unless contained or eradicated. Brunosol Concentrate 6X fulfills this purpose by providing a biocidal barrier within the wall.Approved under the Control of Pesticides Regulations 1986.Product Benefits:Dilutes to make 25 litres of working strength solution.High Strength FormulationInstantaneous action against Dry RotDeep penetration in MasonryNon-flammableActive Ingredients:Sodium Phenylphenoxide 27.53% (w/w).ApplicationPreparation:Rectify the defects contributing to the damp conditions which caused the outbreak (e.g. repair rain water drainage systems, roof leaks, etc; improve sub-floor ventilation, install DPC).Expose the full extent of the outbreak, including a margin of clearance beyond the last visible signs of growth in all directions, remove all mycelium, built-in timber lintels, wall plates, bonding timbers and plugs from the affected walls and clearance areas and dispose of by burning.N.B. If it is considered impractical to remove all timbers from infected walls etc, it may be possible to protect them in situ depending on the precise conditions prevailing etc.1 part Brunosol Concentrate 6X should be diluted with 5 parts water.A 4.2 litre bottle should be diluted to produce 25 litres of working strength solution, rinse container prior to disposal.Health & Safety Recommendations:WEAR SUITABLE PROTECTIVE CLOTHING (COVERALLS) AND SYNTHETIC RUBBER/PVC GLOVES PLUS EYE PROTECTION WHEN DILUTING OR SPRAYING OVERHEAD. SEE OUR SAFETY & PPE PRODUCTSAVOID EXCESSIVE CONTAMINATION OF COVERALLS AND LAUNDER REGULARLY. COVER WATER STORAGE TANKS BEFORE APPLICATION. DO NOT BREATHE SPRAY MIST.WHEN USING DO NOT EAT, DRINK OR SMOKE, DO NOT CONTAMINATED WATERCOURSES OR GROUND, PREVENT ANY SURFACE RUN-OFF FROM ENTERING DRAINS DISPOSE OF WASTE MATERIAL OR CONTAINER SAFELY.Application on Walls:Walls should be treated in depth with diluted Brunosol Concentrate 6X at the rate of 10 litres per m³ of brickwork or masonry.4½” (115mm) brick walls can normally be treated by generous low pressure Spray Application (at 1 litre/2m²) to both sides of the wall.Thicker walls will need to be drilled at approximately 230mm staggered intervals over the area to be treated (12- 16 mm drill bit).Holes should be angled downwards between 30° and 45° to facilitate filling them with the treatment solution.When the walls are drilled from both sides, the depth of the hole should reach the centre of the wall. If the walls are drilled from one side only, the depth of the holes should extend to within approximately 50mm of the reverse face of the wall.Such treatments should be completed by surface application to both faces of the walls, although external walls need not be sprayed from the outside.11” (280mm) cavity walls can be treated as two separate 4½” (115mm) walls providing sufficient access at suitable intervals to the cavity has been made to ensure proper application of the Brunosol Concentrate 6X to the faces of the brickwork exposed within the cavity. It should be ensured that the cavity is clear and where possible ventilated.Local conditions, wall materials and type of construction would determine any variations which may be necessary to the suggested method of treatment to ensure the correct quantity of fluid (10 litres per m³) is evenly distributed within the mass of brickwork or masonry being treated.Application on Floors:Where the fungal growth has extended into the sub-floor area below a timber ground floor structure, the base of the structural walls, sleeper walls and oversite of the affected area must also be treated with Brunosol Concentrate 6X.Where the growth has penetrated a concrete oversite or subsoil it should be excavated and the exposed surface treated with Brunosol Concentrate 6X solution.Note: Areas below ground level (where sources of moisture cannot be isolated) may not be suitable for treatment using the above procedures.Coverage:1 litre of diluted product treats 2m² - 5m², 10 litres/m³.Finishing:N.B. UNPROTECTED PERSONS AND ANIMALS SHOULD BE KEPT AWAY FROM TREATED AREAS FOR 48 HOURS OR UNTIL SURFACES ARE DRY.Ideally, any area affected by dry rot should be left exposed as long as possible after treatment to facilitate rapid drying out of the masonry / oversite. Nevertheless, re-instatement including re-plastering can proceed without delay after the application of Brunosol Concentrate 6X if required.All replacement timbers should be treated with a suitable Wood Preservative and isolated from direct contact with masonry (e.g. use DPC material behind studwork for dry lining plasterboard or galvanised steel hangers to support joist ends). In cases where damp conditions are likely to persist, timbers should be treated by industrial pre-treatment as detail in BS 5589 : 1989.If an inadequate sub-floor ventilation system was a contributory factor to the Dry Rot outbreak, steps must be taken to improve the system. This can normally be achieved by inserting additional or larger air bricks, strategically placed and free from obstruction (see BRE DAS 73, 1986).Any obstructions within the sub-floor areas which would impede the cross flow movement of air must be dealt with. A satisfactory sub-floor ventilation system is one which will maintain the moisture content of the under side of the floor structure below 20%.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552087683102 shopify_GB_552087683102_7653399789598 new 34.68 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/BRUNOSOL6X4.2LNEW_grande.jpg?v=1605882906 Wykamol Group WYDR05 Masonry Biocide 4.2 Litres (Concentrate) US 4.5 kg Wykamol Group Wykamol 'DPC No. 1' Solvent Based Damp Proofing Fluid https://www.platinumchemicals.co.uk/products/damp-proofing-fluid-solvent-based?variant=7653627822110 'DPC No.1' Damp Proofing Injection Fluid is an Organic Solvent-Based Stearate Resin (POAS) solution designed for the creation of chemical damp proof courses in walls above ground level.Supplied in 25 Litre Containers, Ready-to-use Product.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'Description'DPC No.1' Solvent Based Damp Proofing Injection FluidAll treatments should be in accordance with BS 6576:1985 (Code of Practice for the installation of chemical damp proof courses). In particular, the inserted DPC should be below the level of a timber floor unless prevented by structural considerations. Such floors should be inspected due to the risk of fungal decay.Amorphous substrates such as solid chalk, (unfired) clay tec. may not be suitable for chemical damp proofing treatments. Stone walls filled with earth are similarly unsuitable.Note: DPC No.1 is designed to control capillary moisture movement only. Walls heavily impregnated with microscopic salts or suffering from the effects of penetrating or condensation dampness may require further measures to create a dry internal environment.  Read our Guide on 'How To Identify & Treat Rising Dampness On Walls'ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Check and overhaul rainwater goods and soakaways to ensure that they are in good order and clean, repair or install drains to carry away surface water.If the internal floor level is at or below external ground level, form trenches along the external face of the walls to at least 150 mm (6”) below the proposed DPC level. Do not excavate below footing level or affect the structural stability of the wall.If this approach is not feasible the DPC must be placed at 150 mm above external ground level and the internal walls tanked below the DPC to prevent lateral migration of moisture/ salts.Carry our any repairs or re-pointing and leave to cure (a minimum of 4 - 6 weeks) before installing the DPC.Remove skirting’s, fixings and plaster to expose the line of the proposed DPC.Plaster which may be affected by hygroscopic salts should be removed to not less than 300mm (12”) above the last visible signs of dampness or 1 metre above the proposed line of the DPC, whichever is the higher.Check the removed skirting’s and, if required, put sound items to one side for reinstatement. Inspect other associated joinery and flooring timbers and if fungal decay is located take the appropriate remedial measures.Ensure wall cavities are clear of debris. Remove all external render to expose the line of the proposed DPC. If it is suspected that the render is contaminated by hygroscopic salts and / or is physically unsound, it should be removed to an appropriate height.In the case of semi-detached / terraced houses etc. Inform occupants of adjoining properties before treatments commence. The drilling of party walls in particular may cause disturbance to decorations and or ornaments.Also, DPC No.1 may give off volatile vapours and it is essential that no fires or any other naked flames are present during and for up to two days after injection. Full ventilation must be provided during this time to both the treated and adjoining areas.Cavity fill materials such as urea formaldehyde and mineral wool are not normally affected by DPC No.1 but may retain the solvent odour. Cavity walls filled with polystyrene must not be treated with DPC No.1. It may also damage existing bitumen DPCs and certain types of floor tiles, adhesives and polystyrene laid as floor insulant.Installation - General:Select the course to be treated. This should be at least 150 mm (6”) above external ground level.Where suspended timbers are present, the DPC should be formed below joist / wall plate level wherever possible.In the case of solid floors, the DPC should be inserted as close to the floor as possible and, where necessary, linked to the floor damp proof membrane by the application of a suitable water-proof compound.Vertical DPCs should be installed to connect staggered DPC levels and to isolate untreated wall areas, e.g. adjoining properties, fireplace and not treated due to lack of access and abutting garden walls. The vertical DPC should extend to at least 1 metre above the DPC level.If very high levels of hygroscopic ground salts (chlorides, nitrates) are present in the property, our Technical Department should be consulted regarding suitable methods of treatment and reinstatement.The spillage of DPC No.1 may present a contact hazard to unprotected persons. Soak up immediately or rinse away with strong detergent (as appropriate). Do not allow DPC No1 to come into contact with glass.All treatments should be in accordance with BS 6576: 2005 Code of Practice for the installation of chemical damp-proof courses. Special precautions should be taken to isolate structural flooring timbers which will remain below the level of the injected DPC.Installation - Brickwork:Drill the selected course. Spacing should be 120mm to 150mm apart. (2 per stretcher, 1 per header) to an average depth of 75mm. The diameter of the holes should be between 10 -15mm dependent on the injector rods used.Single skin (115mm) walls are drilled from one side (avoid percussion drills). Solid walls (230mm or more) should, where possible, be treated from both sides.If access is restricted injection can be carried out from one side. The first brick is treated normally. A hole is then drilled through into the next brick skin and injection undertaken using the time taken for successful treatment of the first brick as a guideline (see illustrations). Walls of greater thicknesses may be similarly treated in an incremental manner.Treatment may be carried out into the mortar course if required using a similar drilling pattern (maximum 100mm spacings). The course selected should allow reasonable pressure retention during injection and a lower pressure and longer injection times used to achieve good continuity of treatment (see ‘Injection’ below).A combination of mortar joints and brickwork can be treated by using the brick drilling pattern above but drilling at an angle (ca. 45º) to end in a mortar joint at the level of the proposed DPC (in such cases, for walls of greater than 340mm depth, special drilling patterns may be required).Installation - Stonework:Treatment of solid stonework should be carried out in a similar manner to ‘Brickwork’ with adjustments being made to the drilling pattern to take account of the construction.Installation - Rubble Infill Walls:Both solid external skins should be treated in a similar manner to ‘Brickwork’. One set of drill holes can then be drilled through into the centre of the wall and the rubble infill treated.Injection:Injection is carried out by inserting injector rods into the pre-drilled holes and forming a seal. In brick / stone DPC No.1 is injected at an approximate pressure of 500-700 kPa (70-100lbs/in²) until a continuous band of treatment is visible on the face of the wall. If treatment is being carried out into the mortar joints the pressure should be reduced to approximately 200-350 kPa (30-50lbs/in²).Coverage:3-4 litres per metre based on 225mm (9") solid brickwork (or pro rata). In other words, a 25 litre container should cover around 6.25 to 8.25 linear metres on a standard 9" thick brick, depending on porosity of substrate.Plugging:On external faces of walls, drill holes can be re-pointed using a matched mortar or can be plugged with DPC Injection Plugs (Available in a variety of colours, suitable for 10mm - 12mm wide Drill Holes).Curing:Usually within 2 - 7 days of installation depending on the thickness of the wall. Very low temperatures which slow down solvent evaporation will extend curing times.Finishing:The removal and replacement of internal salt contaminated plaster is an important part of an effective damp-proof course. Salts left behind by rising damp are hygroscopic and can cause future staining independent of any issues with structural dampness.It is therefore essential to follow specific re-plastering guidelines drawn up for dealing with the particular challenges posed by damp / salt-affected surfaces.It is advisable to leave walls injected with DPC No. 1 to dry for as long as possible, and for at least 14 days, before removing excess salts and commencing replastering.It should be noted that whilst insertion of a chemical DPC inhibits further moisture from rising up into the wall, the moisture present before the DPC will take time to dry out.Redecoration:A damp wall takes time to dry out. As a general guide, the drying rate is given as 1 month for every 25mm of wall thickness (BRE Digest 163, ‘Drying out buildings’). Thus 230mm will take approximately 9 months to dry. However, the drying processes depend on conditions, ventilation and the type of masonry, so drying may take considerably longer.Due to the potential prolonged drying of the wall, the following must be considered:Delay any decoration for 4-6 weeks following re-plastering and allow for good natural ventilation to enhance drying. Do not apply heat or accelerated drying methods.Do not use wallpaper for at least 12 months (longer on thick walls).Redecorate using a non vinyl based emulsion.Maintain good ventilation around walls.Note: The initial decorations should be regarded as temporary, the final decorations not taking place for at least 12 months after completion of the damp proofing and ancillary work.External Works:Where appropriate, external renders should be applied in accordance with BS 5262:1991 and terminate in a bell mouth just above the DPC level.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552125038622 shopify_GB_552125038622_7653627822110 new 88.74 GBPout of stock http://cdn.shopify.com/s/files/1/2617/5036/products/DPC_NO.1_NEW_grande.jpg?v=1605882815 Wykamol Group WYKD11 Damp Proofing Fluid 25 Litres US 25.0 kg Wykamol Group Wykabor 40.1 Boron Injection Paste - Deep Penetrating Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/boron-injection-paste-wykabor-40?variant=7653400674334 Wykabor 40.1 is a specialist Boron Based Wood Preservative containing disodium octaborate tetrahydrate, designed for use by injection into larger dimension timbers, to protect against Woodworm and Fungal Decay (Dry Rot). Wykabor 40.1 Boron Injection Paste is particularly suited for use in damp / wet timbers in contact with masonry (e.g. joist ends, wall plates etc.) where the active ingredients can diffuse into ‘high risk’ areas.Supplied in 400ml Cartridges, complete with Extension Nozzle.  Wykabor 40.1 carries the HSE Approval No 10362.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWykabor 40.1 - Boron Injection PasteWykabor 40.1 is a glycol-based wood preservative formulation containing disodium octaborate tetrahydrate.Wykabor 40.1 Boron Injection Paste is designed for use by injection into larger dimension timbers, to protect against wood boring insects and fungal decay.Wykabor 40.1 Boron Injection Paste is particularly suited for use in damp / wet timbers in contact with masonry (e.g. joist ends, wall plates etc.) where the active ingredients can diffuse into ‘high risk’ areas.Treatments may be supplemented by a surface application of Wykabor 10.1.Wykabor 40.1 Boron Injection Paste is approved for use only by professional operators under The Control of Pesticides Regulations 1986. Read the label before use.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Deep penetration in wet and dry wood.Odourless.Highly effective, dual purpose preservative.Active Ingredients:Disodium Octaborate 40% w/w.ApplicationBats:All bats are protected under The Wildlife and Countryside Act 1981. Before treating any structure used by bats, consult Natural England, Scottish National Heritage, The Countryside Council for Wales or The Department of the Environment for Northern Ireland.Wykabor 40.1 is suitable for use in bat roosts.Preparation:Before deciding on appropriate preservative treatment, carefully evaluate the structural integrity of timbers and repair and / or replace those considered unsound (isolated from masonry where possible). Locate and rectify any sources of dampness.Wykabor 40.1 can be used to treat sound (new or existing) timbers. For timbers already suffering from fungal decay / insect attack, treatments can be applied effectively as long as measures are also taken to remove sources of moisture and / or improve ventilation in the adjoining areas.Timbers left in direct contact with masonry below ground level, or in other situations where there is a known continuing source of moisture, can be treated in-situ but should be re-inspected periodically to access their condition.Cover water storage tanks and remove or cover fish tanks and bowls and any food stuffs etc. before application. Do not use on food preparation or storage surfaces.Wykabor 40.1 is a deeply penetrating product which causes staining to both the treated timber and any porous materials it is contact with (e.g. plaster, masonry).Further, when timbers are dry, the boron salts may appear as surface crystals in places.THESE FACTORS MAKE THIS PRODUCT SUITABLE ONLY FOR THE TREATMENT OF STRUCTURAL TIMBERS WHICH WILL NOT BE EXPOSED AS A DECORATIVE FEATURE.If sensitive linings or overlay materials are to be used in direct contact with treated timbers they should be isolated by the use of an impervious barrier.If treatments are being carried out as part of a dry rot eradication program carefully establish the full extent of the infestation and use Wykabor 10.1 to sterilise affected masonry as necessary.Drilling Holes in Face of Beams:Holes of 10-12mm diameter should be drilled at intervals of 100mm along the grain and to within 15mm of the full depth of the timber (and otherwise as per the table below).Inject the Wykabor 40.1 to within c. 10mm of the face of the timber and seal with timber dowling or Plastic Plugs.Timer DimensionsDrill Hole DepthNo. of RowsMetres per Cartridge (Approx)100mm x 50mm35mm1 (Centred)20 Metres225mm x 75mm60mm2 (75mm Spacing)7 Metres300mm x 150mm135mm2 (100mm Spacing)2 MetresDrilling Holes on Edge of Beams:Holes of 10-12mm diameter should be drilled at intervals of 150mm along the grain and to within 30-75mm of the full depth of the timber (see the table below).Inject the Wykabor 40.1 to within 30mm of the near face and seal with timber dowling or Plastic Plugs.Timer DimensionsDrill Hole DepthNo. of RowsMetres per Cartridge (Approx)100mm x 50mm70mm1 (Centred)20 Metres225mm x 75mm175mm1 (Centred)7 Metres300mm x 150mm225mm2 (50mm Spacing)2 MetresCoverage:Approx. 5 kg/m³ (Refer to Drilling Patterns in tables above)Finishing:Provide a physical barrier to prevent unprotected persons and / or animals coming into contact with treated surfaces until dry (inaccessible timbers are considered to be outside this requirement).Dispose of empty cartridges carefully; transfer old nozzles to new cartridges wherever possible.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552087978014 shopify_GB_552087978014_7653400674334 new 16.08 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WYKABOR_40.1_grande.jpg?v=1541589981 Wykamol Group WYKB40 Boron Wood Treatments 400ml Cartridge US 0.4 kg 0.00 GBP Wykamol Group Wykabor 20.1 Boron Gel Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/boron-wood-treatment-gel-wykabor-20?variant=7653406179358 Wykabor 20.1 is a Highly Effective, Boron Based Gel which is used for the prevention and treatment of Woodworm and Dry Rot on Timbers. Wykabor 20.1 can either be brush applied or injected into timbers in 'high risk areas' such as joist ends, purlins, wall plates, cut ends and rafter ends.Supplied in 5 Litre Buckets.  Wykabor 20.1 carries the HSE Approval No 10361.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWykabor 20.1 Boron GelWykabor 20.1 Boron Gel is a special boron-based, brushable and injectable gel for use in high risk areas. This Boron Gel is an effective woodworm treatment and also protects against dry rot and wet rot.Wykabor 20.1 Boron Gel has been designed for use in all timbers at high risk of damage or decay such as joist ends, purlins, wall plates, cut ends and rafter ends.Wykabor 20.1  Boron Gel leaves no surface residues after treatment, is non-staining and can be over-painted in time.Wykabor 20.1 Boron Gel is approved for Professional Use under The Control of Pesticides Regulations 1986. Read the label before use.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Brushable and injectable multi-use gel.Excellent highly penetrating preservative for the control of wood rotting fungi and wood boring insects.Approved under COPR 1986 for use as a wood preservative.Low environmental hazard.Clean, easy to handle and virtually non-drip.Non-staining preservative gel.Odourless and non-flammable.Permanent protection because the active ingredient does not breakdown.Active Ingredients:Disodium Octaborate 19.8% (w/w) (243g/l).ApplicationBats:All bats are protected under The Wildlife and Countryside Act 1981. Before treating any structure used by bats, consult English Nature, Scottish National Heritage, The Countryside Council for Wales or The Department of the Environment for Northern Ireland.Preparation:Clean all wooden surfaces using a brush or vacuum cleaner.To aid brushing out on any timbers which are very dry or remain dusty, apply a little water to the surface before the application of Wykabor 20.1 Gel.Application Method:Apply a generous brush coat of Wykabor 20.1 Gel, taking care to ensure that end grains, corners and joints are well treated. Brush apply to any surfaces exposed by cutting after initial treatment.Brush the Wykabor 20.1 Gel well into the surface taking care not to overload the brush with product, particularly on overhead, horizontal faces.Wykabor 20.1 Gel may be used in outdoor conditions provided that the timber treated is then protected from weathering by an appropriate coating or sealant.As a surface application the gel will not penetrate through paint, varnishes or other coatings and these should be removed before treatment. Wykabor 20.1 Gel can be injected through predrilled holes in areas where paint and coatings cannot be removed.Clean all tools, brushes and equipment with waterCoverage:By Brush: 1 litre to 2m² - 2.5m² of timber surface. Large dimensional timbers may need more than one coat or additional treatment with Wykabor 20.1 Gel.By Injection: Apply as necessary or until refusal through pre-drilled holesData SheetsTechnical Data Sheet Safety Data Sheet  shopify_GB_552089026590 shopify_GB_552089026590_7653406179358 new 60.48 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WYKABOR_20.1_GEL_grande.JPG?v=1605882612 5060207860970 Wykamol Group WYRT20 Boron Wood Treatments 5 Litre Bucket US 5.0 kg Wykamol Group Wykabor 10.1 Boron Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/boron-wood-treatment-wykabor-10?variant=7653403000862 Wykabor 10.1 is a Boron Based, Ready to use, Woodworm & Dry Rot Treatment based on Disodium Octaborate and Benazalkonium Chloride, used for the effective treatment of Woodworm (and other Wood Boring Insects) and Dry Rot on Timbers.Available in 5 Litre and 25 Litre Containers, ready-to-use solution.  Wykabor 10.1 carries the HSE Approval No 10359.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWykabor 10.1 - Boron Wood TreatmentWykabor 10.1 is an aqueous wood preservative based on disodium octaborate and benazalkonium chloride used for the treatment of Woodworm and Dry Rot on Timbers. When used as a woodworm treatment, Wykabor 10.1 is effective against Common Furniture Beetle (Anobium Punctatum) and other wood boring insects in building timbers.Wykabor 10.1 is also used for the prevention of fungal decay (Dry Rot) in sound timbers following the removal of moisture.Wykabor 10.1 Boron Wood Treatment may also be used in conjunction with Wykabor 40.1 as part of an eradication treatment against fungal decay.Wykabor 10.1 Boron Wood Treatment is approved for Professional Use under The Control of Pesticides Regulations 1986. Read the label before use.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Ready-to-use solution, no diluting required.Excellent penetrationVery low odourNon-flammableHighly effective dual purpose preservativeActive Ingredients:Disodium Octaborate Tetrahydrate 10%Benzalkonium Chloride 2%.ApplicationBats:All bats are protected under The Wildlife and Countryside Act 1981. Before treating any structure used by bats, consult English Nature, Scottish National Heritage, The Countryside Council for Wales or The Department of the Environment for Northern Ireland.Preparation - Beetle Infestations:Ensure that all timbers to be treated adequately exposed and cleaned, (vacuum cleaning preferred). Any paint or varnish finishes or any severely damaged sapwood edges of timbers (‘frass’) should be removed prior to treatment where possible.Remove thermal insulation in roof spaces (or roll up and completely cover) and do not reinstate until timbers are dry.Cover fitted insulation (lagging on pipes) with polythene and cover water storage tanks with heavy grade polythene to be left in-situ after treatment.Isolate electrical circuits in the treatment area during and for 8 hours after treatment and ensure that junction boxes etc. are adequately protected against the ingress of the fluid. Remove or cover all food-stuff before application as well as fish tanks / bowls.Do not apply to surfaces on which food is prepared or stored.Where applicable, notify occupants of adjoining properties before treatments commence.Display Safety Notices conspicuously during treatment and leave on site after treatment for at least 48 hours.Preparation - Fungal Decay - Dry Rot / Wet Rot:Same as (Beetle Infestations) above plus - locate and rectify the source of dampness.Cut out all structurally unsound timbers and make repairs isolating timbers where possible from damp masonry etc. and ensuring adequate ventilation.For treatments of decayed timbers in-situ see Wykabor 40.1.Application Method:Wear suitable protective clothing (coveralls), synthetic rubber/PVC gloves and face protection.Wykabor 10.1 can be applied to timbers by brush or coarse spray (low pressure; 210-350 kPa, 30-50 lbs/in²) or by immersion (minimum 3 minute dip) to achieve the coverage rates noted below.During spray application some respiratory / face protection will normally be required.In the case of timber sub-floor areas, the base of the structural walls, sleeper walls and oversite (solum) should be treated with Wykabor 10.1. If dry rot mycelium has spread beneath a concrete floor or into subsoil it should be excavated and replaced following a suitable surface treatment .Provide adequate ventilation following treatments and maintain as long as possible after re-occupation.Please note that any metallic surfaces (such as copper pipes) should be isolated from the treatment area as the boron salts may cause a chemical reaction causing surface pitting of the metal.Coverage:By Brush / Spray: 1 litre per 4m² of timber surface.By Dipping: Approx. 5 - 20 litres/m³ (dependant on timber dimensions etc).Finishing:As long as timbers are dry, re-occupation can take place 48 hours after treatments are completed.Floor coverings should not be laid for at least 72 hours (or longer for certain impermeable or other floor materials, e.g. vinyls, foam-backed carpets etc.) In all cases, use lining papers to protect coverings from direct contact with timbers.Treated timbers can be over coated when dry with a range of decorative / protective paints etc. (to ensure compatibility check a small area first).Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552088535070 shopify_GB_552088535070_7653403000862 new 25.14 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WYKABOR_10.1_5L_NEW_grande.JPG?v=1551867252 5060207860864 Wykamol Group WYRT15 Boron Wood Treatments 5 Litres US 5.0 kg 0.00 GBP Wykamol Group Wykabor 10.1 Boron Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/boron-wood-treatment-wykabor-10?variant=7676916138014 Wykabor 10.1 is a Boron Based, Ready to use, Woodworm & Dry Rot Treatment based on Disodium Octaborate and Benazalkonium Chloride, used for the effective treatment of Woodworm (and other Wood Boring Insects) and Dry Rot on Timbers.Available in 5 Litre and 25 Litre Containers, ready-to-use solution.  Wykabor 10.1 carries the HSE Approval No 10359.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWykabor 10.1 - Boron Wood TreatmentWykabor 10.1 is an aqueous wood preservative based on disodium octaborate and benazalkonium chloride used for the treatment of Woodworm and Dry Rot on Timbers. When used as a woodworm treatment, Wykabor 10.1 is effective against Common Furniture Beetle (Anobium Punctatum) and other wood boring insects in building timbers.Wykabor 10.1 is also used for the prevention of fungal decay (Dry Rot) in sound timbers following the removal of moisture.Wykabor 10.1 Boron Wood Treatment may also be used in conjunction with Wykabor 40.1 as part of an eradication treatment against fungal decay.Wykabor 10.1 Boron Wood Treatment is approved for Professional Use under The Control of Pesticides Regulations 1986. Read the label before use.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Ready-to-use solution, no diluting required.Excellent penetrationVery low odourNon-flammableHighly effective dual purpose preservativeActive Ingredients:Disodium Octaborate Tetrahydrate 10%Benzalkonium Chloride 2%.ApplicationBats:All bats are protected under The Wildlife and Countryside Act 1981. Before treating any structure used by bats, consult English Nature, Scottish National Heritage, The Countryside Council for Wales or The Department of the Environment for Northern Ireland.Preparation - Beetle Infestations:Ensure that all timbers to be treated adequately exposed and cleaned, (vacuum cleaning preferred). Any paint or varnish finishes or any severely damaged sapwood edges of timbers (‘frass’) should be removed prior to treatment where possible.Remove thermal insulation in roof spaces (or roll up and completely cover) and do not reinstate until timbers are dry.Cover fitted insulation (lagging on pipes) with polythene and cover water storage tanks with heavy grade polythene to be left in-situ after treatment.Isolate electrical circuits in the treatment area during and for 8 hours after treatment and ensure that junction boxes etc. are adequately protected against the ingress of the fluid. Remove or cover all food-stuff before application as well as fish tanks / bowls.Do not apply to surfaces on which food is prepared or stored.Where applicable, notify occupants of adjoining properties before treatments commence.Display Safety Notices conspicuously during treatment and leave on site after treatment for at least 48 hours.Preparation - Fungal Decay - Dry Rot / Wet Rot:Same as (Beetle Infestations) above plus - locate and rectify the source of dampness.Cut out all structurally unsound timbers and make repairs isolating timbers where possible from damp masonry etc. and ensuring adequate ventilation.For treatments of decayed timbers in-situ see Wykabor 40.1.Application Method:Wear suitable protective clothing (coveralls), synthetic rubber/PVC gloves and face protection.Wykabor 10.1 can be applied to timbers by brush or coarse spray (low pressure; 210-350 kPa, 30-50 lbs/in²) or by immersion (minimum 3 minute dip) to achieve the coverage rates noted below.During spray application some respiratory / face protection will normally be required.In the case of timber sub-floor areas, the base of the structural walls, sleeper walls and oversite (solum) should be treated with Wykabor 10.1. If dry rot mycelium has spread beneath a concrete floor or into subsoil it should be excavated and replaced following a suitable surface treatment .Provide adequate ventilation following treatments and maintain as long as possible after re-occupation.Please note that any metallic surfaces (such as copper pipes) should be isolated from the treatment area as the boron salts may cause a chemical reaction causing surface pitting of the metal.Coverage:By Brush / Spray: 1 litre per 4m² of timber surface.By Dipping: Approx. 5 - 20 litres/m³ (dependant on timber dimensions etc).Finishing:As long as timbers are dry, re-occupation can take place 48 hours after treatments are completed.Floor coverings should not be laid for at least 72 hours (or longer for certain impermeable or other floor materials, e.g. vinyls, foam-backed carpets etc.) In all cases, use lining papers to protect coverings from direct contact with timbers.Treated timbers can be over coated when dry with a range of decorative / protective paints etc. (to ensure compatibility check a small area first).Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_552088535070 shopify_GB_552088535070_7676916138014 new 67.98 GBPin stock http://cdn.shopify.com/s/files/1/2617/5036/products/WYKABOR_10.1_25L_NEW_grande.JPG?v=1551867252 5060207862103 Wykamol Group WYRT16 Boron Wood Treatments 25 Litre US 25.0 kg 0.00 GBP Platinum Building Chemicals Ltd WoodGuard Insecticide - Woodworm Treatment https://www.platinumchemicals.co.uk/products/woodworm-treatment-insecticide?variant=30718895456355 WoodGuard Insecticide is a very effective Concentrated Woodworm Treatment used for the eradication and prevention of Woodworm and other wood boring insects. WoodGuard Insecticide Woodworm Treatment dilutes with water to make up to 25 Litres of Ready-to-use product.Supplied in 250ml Containers, Concentrated Solution.  WoodGuard Insecticide Woodworm Treatment carries the HSE Approval No 10641.  Read our Guide on 'How to Treat Woodworm & Wood Boring Insects'DescriptionWoodGuard Insecticide - Woodworm TreatmentWoodGuard Insecticide is a Woodworm Treatment supplied as a 250g concentrate which requires dilution with water to form a ready to use product.The formulation of WoodGuard Insecticide is based on micro-emulsion technology to achieve the desired effect in a non solvent and VOC free based system.The active ingredients of WoodGuard Insecticide are designed to give the maximum spectrum of biological activity against a wide range of wood boring insects (specifically woodworm) including their larvae.WoodGuard Insecticide provides rapid absorption into the timber giving high levels of penetration.WoodGuard Insecticide has virtually no odour and can be applied either by brush or low pressure spray to give long lasting protection.  Read our Guide on 'How to Treat Woodworm & Wood Boring Insects'Product Benefits:Dilutes to make up to 25 litres of Ready-to-use ProductEradicates Wood Boring InsectsPrevents Re-infestationMicroemulsion Water Based FormulaVirtually No OdourHas an HSE Statutory 1-hour Re-entry TimeNon FlammableActive Ingredients:PermethrinPermethrin 20.0% w/w: The insecticide is effective against all life stages of wood boring insects whilst the surfactant system used in the formulation promotes rapid absorption and deep penetration into timber.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Wood should be clean and free from wood dust and other contaminants.Application Method:Apply by Brush or Low Pressure Spray.Coverage:Apply at 250 - 333ml/m² (1L per 3 - 4m²) once diluted.Re-Entry Time:Woodguard Insecticide has a HSE statutory 1-hour re-entry time.Finish:Product does not have a finish and leaves the same effect as applying water or solvent. It is always advisable to try on a small inconspicuous area before application to ensure product finish is as expected. Stability:Product is stable in original packaging for 2 years when stored under ambient conditions. After 2 years product should be re-tested every 6 months to ensure active ingredient levels are within specification.Data SheetsTechnical Data SheetSafety Data Sheet shopify_GB_4260932124771 shopify_GB_4260932124771_30718895456355 new 16.74 GBPout of stock http://cdn.shopify.com/s/files/1/2617/5036/products/WOODGUARD_INSECTICIDE_grande.jpg?v=1571152462 Platinum Building Chemicals Ltd RT01 Woodworm Treatment 250g (Concentrate) US 0.25 kg 0.00 GBP Platinum Building Chemicals Ltd WoodGuard Dual Fungicide & Insecticide - Woodworm & Dry Rot Treatment https://www.platinumchemicals.co.uk/products/dry-rot-wood-treatment?variant=31222451929187 WoodGuard Dual Fungicide & Insecticide is a very effective Concentrated Woodworm & Timber Rot Treatment used for the eradication and prevention of Woodworm (and other wood boring insects) and Wood Rotting Fungi (Dry Rot and Wet Rot).WoodGuard Dual Fungicide & Insecticide should only be used on Timbers. For an effective Dry Rot Treatment on Masonry substrates, see Platinum Masonry Biocide.WoodGuard Dual Fungicide & Insecticide dilutes with water to make up to 25 Litres of Ready-to-use product.Supplied in 500ml Containers, Concentrated Solution.  WoodGuard Dual Fungicide & Insecticide carries the HSE Approval No 10640.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'DescriptionWoodGuard Dual Fungicide & Insecticide - Woodworm & Timber Rot TreatmentWoodGuard Dual Fungicide & Insecticide is a Dual Woodworm & Dry Rot Timber Treatment supplied as a 500g concentrate which requires dilution with water to form a ready to use product.The formulation of WoodGuard Dual Fungicide / Insecticide is based on micro-emulsion technology to achieve the desired effect in a non solvent and VOC free based system.The active ingredients of WoodGuard Dual Fungicide / Insecticide are designed to give the maximum spectrum of biological activity against a wide range of wood rotting fungi and wood boring insects (specifically woodworm) including their larvae.WoodGuard Dual Fungicide / Insecticide provides rapid absorption into the timber giving high levels of penetration. It has virtually no odour and can be applied either by brush or low pressure spray to give long lasting protection.  Read our Guides on 'How to Treat Woodworm & Wood Boring Insects' and 'How to Identify & Treat Dry Rot and Wet Rot on Timbers'Product Benefits:Dilutes to make up to 25 litres of Ready-to-use ProductEradicates Wood Boring Insects and Wood Rotting FungiPrevents Re-infestationMicroemulsion Water Based FormulaVirtually No OdourHas an HSE Statutory 1-hour Re-entry TimeNon FlammableActive Ingredients:PermethrinPermethrin 10.0% w/w: The insecticide is effective against all life stages of wood boring insects whilst the surfactant system used in the formulation promotes rapid absorption and deep penetration into timber.PropiconazolePropiconazole 10.0% w/w: A Triazole Fungicide which has excellent efficacy against a range of wood destroying fungi.IPBC (3-Iodo-2-Propynyl Butyl Carbamate)IPBC (3-Iodo-2-Propynyl Butyl Carbamate) 10.0% w/w: A Carbamate Fungicide which is added to improve the efficacy envelope even further providing excellent efficacy against a range of wood staining fungi.ApplicationHealth & Safety Recommendations:Take the usual labour hygiene into account.PPE should be worn during application. See our Safety & PPE Products.Consult label and material safety data sheet for more information.Preparation:Wood should be clean and free from wood dust and other contaminants.Application Method:Apply by