Platinum Building Chemicals Ltd | Damp Proofing
DampSolve™ Damp Proof Cream is a BBA Approved silane based DPC Cream used for injection into brickwork for the control of Rising Damp.
DampSolve™ Damp Proof Cream is delivered by hand pressure from the appropriately sized applicator gun into a series of holes drilled into the mortar course. From here, DampSolve™ Damp Proof Cream effectively migrates into the masonry pores and fully passivates across the mortar joint as the cream reverts to a liquid phase.
Upon curing, a hydrophobic chemical damp-proof barrier is formed in-situ. Extensive field experience with this technology demonstrates that DampSolve™ will perform as well as any conventional liquid injection system against rising damp.
DampSolve™ cream is designed to control rising damp, but walls can remain damp after a DPC installation where they are severely contaminated with hydroscopic salts.
Re-plastering with an appropriate, salt resistant product, such as Renovating Plaster or a sand / cement mix containing a suitable Render Additive, is essential to prevent further damage to the plaster finish. In all cases the damp proof course should, as far as possible, be installed in accordance with British Standard ‘Code of Practice for Installation of Chemical Damp Proof Courses’ BS6576:2005.
DampSolve™ is supported by BBA Certification Certificate No: 10/4781.
Cures to form a barrier against Rising Damp
Fast, clean installation process
No High-Pressure Injection Pump required
Can be used in all types of masonry
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 depth allows). 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 is removed from the area to be treated to a height of 300mm above the maximum level of the Rising Damp.
Check flooring timbers for signs of fungal decay and recommend repair / replacement as appropriate.
Ensure wall cavities are cleared of debris.
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 150mm above external ground level. In the case of solid floors, insert the DPC as close to floor level as possible.
Vertical DPCs should be provided to connect horizontal DPCs 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 115mm thick wall.
Alternatively, if preferred, drill through the selected mortar course, across the cavity, then drill the outer leaf of brickwork to a depth of 95mm and inject in one continuous process (the physical properties of DampSolve™ ensure the cream remains in contact with the surrounding mortar even when the mortar bed is drilled through in this way). Always ensure that the cavity is clear before treatment.
In random stone and rubble infill walls, as far as practically possible, follow the mortar course at the appropriate level. However, if the stone is of a porous type, it may be possible to vary the drilling locations (mortar / stone) as long as the mortar bed perpends are treated. In walls of a thickness greater than 350mm, 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 DampSolve™ is introduced.
Drill 12mm diameter holes horizontally in the mortar bed at distances no greater than 120 mm. The depth of the hole required for various sizes of wall is shown in the table below (approx 90% of any given wall thickness).
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.
Drill hole depth required, dependent on wall thickness:
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.
DampSolve™ - 380ml Cartridge: Applied by use of a standard C4 Skeleton Gun and Extension Nozzle (Extension Nozzle supplied with product, spare Nozzles can be purchased separately).
DampSolve™ - 1 Litre Cartridge: Applied by use of the Cox™ Powerflow DPC Cartridge Gun & Brass Injection Nozzle
DampSolve™ - 5 Litre Tub & 8 Litre Box: Applied by use of the Osatu Tango 7 DPC Injection Pump.
Insert DampSolve™ Cartridge into appropriate gun applicator (Or pour contents into Injection Pump if using a 5 Litre Tub or 8 Litre Box).
Insert the applicator nozzle into the full depth of the pre-drilled hole. Squeeze the gun and trigger and back fill each hole fully with DampSolve™ cream to within one centimetre of the surface. When treating cavity walls from one side make certain that the holes in each leaf are filled. Spilt material should be wiped up immediately and the wipes disposed of appropriately. Contaminated surfaces should be washed immediately with warm soapy water. If DampSolve™ cream penetrates non-target surfaces (e.g. a patio slab) it will normally dry clear to finish.
Individual site conditions can cause variations. Always allow at least 10% extra when estimating the quantity of material required.
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).
On internal faces holes can be left open and plaster stopped short of the DPC.
Final cure takes 2 - 6 weeks depending on the thickness of the wall.
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 DampSolve™ 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.
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.
Platinum Building Chemicals Ltd | Waterproofing Membranes
Platinum Waterseal Brick Plugs are used in Basement Waterproofing and Damp Proofing applications to secure specialist Cavity Drain Membranes to the base material, usually brickwork & concrete.
Platinum Waterseal Brick Plugs are manufactured from glass filled polyamide which gives a high strength, corrosion resistant fixing.
The Sealing Washers are used in conjunction with Platinum Waterseal Brick Plugs to provide a watertight seal under the fixing head.
Plug Size: (W) 10mm x (L) 60mm
Washer Size: Accepts 10mm wide plug.
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.
Platinum Corner Strip is used to create single sided taped joints as an overtape to seal adjacent butted and overlapped membranes, or to seal above joins to the membrane created whilst shaping the membrane to fit convoluted substrate.
Platinum Corner Strip Tape can also be used for the sealing of protrusions through the membrane.
Available in 150mm or 100mm widths, in either 20M, 10M or 5M Lengths.
Platinum Salt Neutraliser is an aqueous solution that has been specifically developed to overcome the problem of salts in a wide range of substrates from new plasterwork to old stone.
Due to rising dampness, salts contained in ground water are absorbed into the masonry and subsequently into the plaster coat. If the rising damp had been severe the plasterwork can lose key and visual evidence of this problem can often be noted by the presence of salt deposits.
In such severe circumstances the plasterwork must be removed and re-plastering carried out in accordance with an appropriate re-plastering specification which will prevent any residual salts in the base substrate migrating into new plasterwork.
There are, however many situations where the type of salts within the masonry are such that the plasterwork remains in good condition. In these cases the Salt Neutraliser can be used thus saving considerable time and expense by not having to re-plaster these areas.
There are many other occasions where even after re-plastering work, salt efflorescence can be seen on the new plasterwork. This often leads to concern that the damp proof course has failed, when in fact, in them, majority of cases the efflorescence is due to other factors such as drying out, salts in construction, plumbing or rainwater leaks, condensation or salty bricks. Under these circumstances Salt Neutraliser is an ideal product to treat the problem.
NOTE: FOR INTERNAL USE ONLY. THIS PRODUCT IS NOT RECOMMENDED FOR EXTERNAL SALTING PROBLEMS.
Available in 1 Litre, 5 Litre and 25 Litre Containers.
Neutralises the action of salts to prevent or reduce efflorescence.
Applicable to all internal mineral building surfaces.
Used as concentrate or in diluted form.
Brush away or remove all loose salts.
Thoroughly soak the affected area with clean tap water.
Apply Salt Neutraliser by brush or roller to areas showing salts contamination. Under most circumstances one coat or application will be adequate.a) Where heavy salting on old brickwork is being treated use Salt Neutraliser as the concentrate (container strength).b) On new plasterwork or light salting use Salt Neutraliser diluted with water up to 50/50 dilution rate.
Some frothing may occur which is due to the reaction with the salts. Allow some time for the neutralising action to be completed. A white deposit may be left on the surface where original efflorescing has taken place and is sometimes difficult to remove.
If re-decorating is to be applied on the treated surface the area should be washed with water and allowed to dry. Do not redecorate at any time until the treated areas are thoroughly dry.
Coverage will vary with the type of surface and substrate: 1 litre concentrate should treat 5m² to 10m².
Platinum Building Chemicals Ltd | Masonry Biocide
Platinum Micro 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.
Platinum Micro Masonry Biocide carries the HSE Approval No 9224.
Supplied in 1 Litre containers, concentrated solution.
Dilutes to make 25 litres of Ready-to-use Product
Unique micro emulsion system.
Deep penetration in masonry.
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).
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 Platinum Micro 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.
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).
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 Platinum Micro Masonry Biocide solution (see Application - For Treatments Prior to Painting / Mould Control).
On Walls: Walls should be treated in depth with diluted Platinum Micro 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 Platinum Micro Masonry Biocide.
Where the growth has penetrated a concrete oversite or subsoil it should be excavated and the exposed surface treated with Platinum Micro 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.
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., Platinum Micro 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 Platinum Micro 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 Platinum 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 wear
Very dense substrates which do not absorb much fluid
Surfaces where dirt etc. is allowed to accumulate
Persistently 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.
After Preparation work is complete, apply Platinum Micro 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.
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 Platinum Micro 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%.
In above ground installations, Platinum 'Mesh-Fix' Plaster Plugs can be used internally and externally to secure Damp Proofing Meshed Membranes.
Use an 8mm SDS Drill Bit to drill through membrane and substrate prior to hammering home fixing plug.
Newton® 801-M Mastic Sealant should be injected into the drilled hole before fixing the plug into the membrane, it serves to stop any ‘bridge’ happening between the damp or stained surface and the new surface and is also used for sealing around protrusions.
Platinum Waterseal Tape is a Black Butyl Tape to be used for jointing Waterproof Membranes along the flange where they overlap. Platinum Waterseal 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.
Platinum 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.
Platinum Mesh Tape can also be used as an overtape to provide a key above joints to meshed membranes over joints already sealed with Waterseal Tape, Waterseal Rope or Corner Strip / OverTape.
Platinum Building Chemicals Ltd | Timber Joist Repair
BAT Splice Plates are suitable for butt jointing timbers of similar cross section.
Manufactured from 1.2mm pregalvinised mild steel (BS EN 10142: 1991, DX 51D+Z275), BAT Splice Plates are used for the following:
Replacement of rotten and decayed floor joist ends.
Replacement of fire damaged structural timbers.
Making good localised damage or decay in structural timber work.
All nail holes must be used when fixing to timbers. 1 bag of Nails supplied with each set.
Minimum Timber Thickness - 50mm.
BAT Splice Plates are supplied in a set of 4 plates complete with nails for fixing.
Available in 3 Sizes:
L61 - (W) 61mm x (L) 400mm
L80 - (W) 80mm x (L) 560mm
L98 - (W) 98mm x (L) 560mm
Platinum Waterseal Rope is used to form a seal at the overlap of adjacent sheets of Waterproof Membranes when neither a flange joint of stud into stud joint has been made.
A bead of Waterseal Rope is used for the sealing of penetrations through the Waterproof Membranes.
Platinum Waterseal Rope is also used to create a sealing ring to the base of Brick Plugs or Plaster Membrane Fixings.
Platinum Building Chemicals Ltd | Mould Control
The 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.
The Mould Eradication Kit is a full multipurpose kit providing the essential products required to held treat and eradicate Black Mould.
The Mould Eradication Kit is supplied with the required Cleaning Solution (MCS1) and Paint Additive (MCS3), along with the recommended PPE equipment (masks, gloves etc.) to treat and clean mould issues in domestic properties.
MCS1 Mould Clear Solution carries the HSE Approval No 9453; MCS3 Paint Additive carries the HSE Approval No 7656.
1 x 1 Litre MCS1 (Ready to Use) Mould Clear Solution Spray**
1 x 100ml MCS3 Fungicidal Paint Additive**
1 x Ancona Safety Spectacles (EN166 Approved)
1 x Pair Flock-Lined Green Nitrile Gloves (Chemical & Solvent Resistant)
1 x P2 Fold Flat Valved Respirator
1 x Cleaning Sponge
** MCS1 & MCS3 ARE ALL APPROVED FOR BOTH AMATEUR AND PROFESSIONAL USERS.
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 Treated:
Painted and 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 - The solution should cover approximately 12.5m².
Rub the surface using the sponge provided. Allow approximately 30 minutes for the product to work, then rinse with warm soapy water. Repeat the treatment if necessary.
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.
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. Apply the paint in accordance with the manufacturers instructions.
Important - Condensation is usually increasingly the main cause of mould. To reduce this underlying problem, ensure adequate ventilation throughout the property. In very extreme cases of mould other remedial measures may be required.
MCS1 Mould Clear Solution (Ready to Use) - Contains: Acticide 50x 4.76% w/w. MCS3 Paint Additive - Contains: 3-Iodo-2-Propynyl-n-Butyl Carbamate 14.97% w/w.
Universal Injection Plugs have been designed to offer a solution to the problem of sealing holes drilled in bricks and mortar for the installation of Damp Proofing Creams & Fluids.
For this application, holes will be 10mm or 12mm in diameter depending on the DPC system.
Available in 5 Colours.
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