Wykamol CM Brick Plugs Without Seals
Wykamol CM Brick Plugs Without Seals are specialist 10mm x 60mm membrane fixing plugs designed for securing Wykamol cavity drain membranes to brick, concrete, stone and other suitable masonry substrates in situations where an integral watertight compression seal is not required.
They are supplied without rubber sealing washers, meaning they do not form a watertight seal at the fixing point by themselves. They are intended for above-ground or non-water-bearing applications, or for areas where the fixing point will be sealed separately with Wykamol Sealing Rope.
They can also be used for fixing membranes to vaulted ceilings, brick arches, sloping soffits and other overhead or inclined surfaces where a rope-sealed fixing detail is more suitable than a washered plug. Where a sealed fixing is required for standard below-ground wall membrane installation, Wykamol CM Brick Plugs WITH Seals are the preferred option. Supplied in convenient packs of 100, 50 or 25 fixings.
Next Day Delivery
Available on most mainland UK orders
Free Help & Advice
Call 01355 222 777
Mon.-Fri 8:30am - 4:15pm, or email us
Same Day Despatch
On in-stock orders placed before 14:00
Great Service
A proudly independent family business with 40 years experience
Next Day Delivery
Available on most mainland UK orders
Free Help & Advice
Call 01355 222 777
Mon.-Fri 8:30am - 4:15pm, or email us
Same Day Despatch
On in-stock orders placed before 14:00
Great Service
A proudly independent family business with 40 years experience
Key Features of Wykamol CM Brick Plugs Without Seals
✔️ Specialist 10mm x 60mm membrane fixing plugs for Wykamol cavity drain and damp proof membrane installations.
✔️ Supplied without sealing washers, suited to above-ground applications or where fixing is sealed using Sealing Rope.
✔️ Practical option for vaulted ceilings, brick arches and sloping soffits where compression washers may not sit evenly.
✔️ Central core accepts 5mm size 10 screws, allowing battens, tracking and dry-lining to be fixed through the plug.
✔️ Compatible across the Wykamol membrane range including CM8, CM3, CM8 Mesh and CM3 Mesh membranes.
Specialist Unsealed Fixing Plugs For Wykamol Cavity Drain Membrane Systems
Wykamol CM Brick Plugs Without Seals are specialist fixing plugs used within the Wykamol Waterproof Membrane System in situations where a secure mechanical fixing is required but where the fixing point does not need to be sealed by a built-in washer. Their core purpose is to secure Wykamol cavity drain membranes firmly to suitable masonry substrates, including brickwork, concrete, stone and blockwork, holding the membrane correctly against the wall during installation before dry-lining systems, battens, tracking, plasterboard or other internal finishes are fitted over the top. The plug also features a central hole that accepts 5mm size 10 threaded screws, allowing battens, tracking and compatible dry-lining systems to be fixed back to the wall without drilling separate additional holes through the membrane.
Unsealed Design Suited To Above-Ground And Rope-Sealed Fixing Details
The key difference between these plugs and the standard Wykamol CM Brick Plugs With Seals is the absence of the rubber grommet, which on the washered version compresses against the membrane face to help prevent water or damp passing through the drilled fixing point. Without this sealing washer, Wykamol CM Brick Plugs Without Seals should not be treated as a watertight fixing in their own right and are best suited to above-ground damp proofing, non-water-bearing membrane installations, or applications where the fixing penetration is sealed separately using Wykamol Sealing Rope. This makes them a practical and versatile option for installers who need a reliable mechanical fix without relying on an integral washer seal to manage moisture at the penetration point.
Ideal For Vaulted Soffits Brick Arches And Angled Membrane Installations
These non-sealed plugs prove particularly useful for more challenging membrane details, including vaulted ceilings, brick arches, sloping soffits and overhead or inclined surfaces where a standard rubber washer may not compress evenly against the membrane due to the angle or curvature of the substrate. Wykamol Sealing Rope can instead be carefully formed around the plug head to provide a more appropriate and adaptable seal suited to the specific geometry of the fixing detail. They are suitable for use across the Wykamol waterproof membrane range, including Wykamol CM8, CM3 and CM8 Mesh, and may also be used with CM3 Mesh in basement or more demanding applications where a heavier duty brick plug fixing is preferred over lighter Wykamol CM Plaster Plugs and stronger anchorage is genuinely required.
| Technical Information | |
|---|---|
| Specification | Detail |
| Plug Size | 10mm x 60mm |
| Pack Sizes | 100, 50 and 25 |
| Drill Hole Size | 10mm |
| Plugs Per m² | 5/m² non-meshed membranes, 15/m² meshed membranes |
| Fixing Method | Hammer driven |
| Seal Supplied | No rubber washer |
| Optional Seal | Wykamol Sealing Rope |
| Fixing Position | Through membrane stud |
| Main Use | Non-sealed membrane fixing |
| Suitable Membranes | CM8, CM3, CM8 Mesh |
| Other Membrane Use | Selected CM3 Mesh applications |
| Suitable Substrates | Brick, concrete, stone, masonry |
| Application Area | Above-ground or separately sealed |
| Screw Compatibility | 5mm size 10 screws |
| Secondary Use | Battens, tracking, dry-lining |
Product Benefits
-
Specialist Non-Sealed Membrane Fixing: Designed for securing Wykamol cavity drain membranes in situations where a built-in watertight compression seal is not required, making them well suited to non-water-bearing or separately sealed fixing details.
-
Suitable for Wykamol Waterproof Membranes: Compatible with Wykamol CM8, Wykamol CM3, Wykamol CM8 Mesh and selected CM3 Mesh applications, giving installers a practical fixing option across the Wykamol membrane range.
-
Useful Alternative to Washered Plugs: In situations where a sealed fixing is not necessary, these plugs provide the same core mechanical fixing function as Wykamol CM Brick Plugs With Seals, but without the fitted rubber grommet.
-
Suitable for Rope-Sealed Details: The plug can be used with Wykamol Sealing Rope where a separate seal is needed, particularly around awkward fixing points, irregular substrates or non-standard membrane details.
-
Practical for Vaulted and Inclined Surfaces: The non-washered design is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead surfaces, where a flat washer may not compress evenly against the membrane.
-
10mm x 60mm Fixing Size: The plug is installed into a 10mm drilled hole and provides a practical fixing depth for suitable brick, concrete, stone and other masonry substrates.
-
Accepts 5mm Size 10 Screws: The central core allows battens, tracking, dry-lining frames and other compatible ancillary products to be fixed through the plug without creating unnecessary extra membrane penetrations.
-
Supports Internal Finishing Systems: The plug can be used as a fixing point for dry-lining support systems, allowing internal finishes to be installed in front of the cavity drain membrane.
-
Suitable for Meshed and Non-Meshed Membranes: Can be used at approximately 5 plugs per m² on non-meshed membranes, or approximately 15 plugs per m² at 250mm centres on meshed membranes where tighter restraint is needed.
-
Heavy Duty Option for Certain Mesh Applications: In basement or higher demand situations, Wykamol CM Brick Plugs Without Seals may be selected for CM3 Mesh in situations where a stronger fixing is preferred over lighter plaster plug alternatives.
Typical Applications
-
Wykamol CM8 Membrane Fixing: Well suited to securing Wykamol CM8 cavity drain membrane to masonry substrates, in situations where a non-sealed or separately sealed fixing detail is appropriate.
-
Wykamol CM3 Membrane Fixing: Can be used with Wykamol CM3 membrane in waterproofing or damp management applications where a secure mechanical fixing is required.
-
Wykamol CM8 Mesh Installation: Well suited to fixing Wykamol CM8 Mesh, in situations where the membrane must be held tightly against the wall before plastering, rendering, dot and dab plasterboard or other compatible finishes.
-
Selected Wykamol CM3 Mesh Basement Applications: Can be used with Wykamol CM3 Mesh in situations where a heavier duty fixing is required in a basement or more demanding installation, instead of standard lighter Wykamol CM Plaster Plugs.
-
Above-Ground Damp Proofing: Well suited to above-ground membrane installations where the fixing point is not exposed to water pressure and does not require an integral watertight washer seal.
-
Non-Water-Bearing Membrane Areas: Appropriate for locations where the cavity drain membrane is being mechanically fixed, but where the fixing penetration is not expected to act as a water ingress route.
-
Vaulted Ceiling Membrane Fixing: Useful for fixing membranes to vaulted ceilings, where the plug head can be sealed separately with Wykamol Sealing Rope if a sealed fixing detail is required.
-
Brick Arch and Sloping Soffit Fixing: Well suited to arched, curved or sloping substrates, where a standard washered plug may not seat evenly and a rope-sealed fixing detail is more appropriate.
-
Batten and Tracking Installation: The plug core accepts 5mm size 10 screws, allowing timber battens, metal tracking and compatible lining supports to be fixed through the membrane plug.
-
Dry-Lining Frame Fixing: Can be used as an anchor point for compatible dry-lining systems, helping support internal wall finishes without creating additional holes through the membrane.
Q) What are Wykamol CM Brick Plugs Without Seals and what are they designed for?
A) Wykamol CM Brick Plugs Without Seals are specialist 10mm x 60mm membrane fixing plugs designed for securing Wykamol cavity drain membranes to brick, concrete, stone and other suitable masonry substrates in situations where an integral watertight compression seal is not required. They are supplied without rubber sealing washers, meaning they do not form a watertight seal at the fixing point by themselves. They are intended for above-ground or non-water-bearing applications, or for areas where the fixing point will be sealed separately with Wykamol Sealing Rope. They can also be used on vaulted ceilings, brick arches, sloping soffits and other overhead or inclined surfaces where a rope-sealed fixing is more suitable than a washered plug.
Q) What is the key difference between Wykamol CM Brick Plugs Without Seals and Wykamol CM Brick Plugs With Seals?
A) The fundamental difference between the two versions is the presence or absence of a fitted rubber sealing washer. Wykamol CM Brick Plugs With Seals incorporate a soft sprung rubber washer that compresses against the membrane face when the plug is driven home, creating a watertight seal at each fixing point. This makes them the standard choice for below-ground cavity drain wall membrane installations where sealed fixings are essential. Wykamol CM Brick Plugs Without Seals omit this washer entirely, making them suitable for above-ground or non-water-bearing applications where an integral compression seal is unnecessary, or for installations on curved, inclined or overhead surfaces where Wykamol Sealing Rope provides a more appropriate seal than a flat rubber washer.
Q) Where can Wykamol CM Brick Plugs Without Seals be used in membrane installation work?
A) Wykamol CM Brick Plugs Without Seals are designed for a range of membrane fixing applications where an integral watertight seal is not required. Typical uses include fixing Wykamol CM8, CM3 and CM8 Mesh membranes in above-ground or non-water-bearing situations, vaulted ceiling membrane installation, brick arch and sloping soffit fixing with Wykamol Sealing Rope, selected CM3 Mesh basement applications where a heavier duty fixing is preferred, batten and tracking installation through the plug core, and dry-lining frame support without additional membrane penetrations. Their non-washered design also makes them practical on curved, angled or overhead substrates where a flat rubber washer would not compress evenly, requiring a separate rope-sealed fixing detail instead.
Q) When should Wykamol CM Brick Plugs Without Seals be used instead of the Wykamol CM Brick Plugs With Seals?
A) Wykamol CM Brick Plugs Without Seals should be chosen over the washered version in specific situations where an integral compression seal is either unnecessary or impractical. They are the correct choice for above-ground damp proofing where fixing points will not be exposed to water pressure, non-water-bearing membrane areas where seal continuity at each plug is not a system requirement, and overhead or inclined installations such as vaulted ceilings, brick arches and sloping soffits where a flat rubber washer cannot compress evenly against the curved surface. In those situations, Wykamol Sealing Rope is formed around the plug head instead. For standard below-ground wall cavity drain membrane installations where sealed fixings are critical, Wykamol CM Brick Plugs With Seals remain the recommended choice.
Q) What are the main advantages of Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals offer several practical advantages for specialist membrane fixing applications. The absence of a pre-fitted washer makes them specifically suited to above-ground, non-water-bearing or rope-sealed fixing details where a compression washer would be unnecessary or impractical. They are compatible with Wykamol CM8, CM3, CM8 Mesh and selected CM3 Mesh membranes, providing useful flexibility across the Wykamol range. The central core accepts 5mm size 10 screws for secondary batten, tracking and dry-lining fixings without additional membrane penetrations. Their suitability for use with Wykamol Sealing Rope makes them genuinely practical on vaulted, inclined and curved surfaces where consistent washer compression cannot be achieved with a standard flat rubber grommet.
Q) What technical specifications do Wykamol CM Brick Plugs Without Seals have?
A) Wykamol CM Brick Plugs Without Seals measure 10mm in diameter by 60mm in length and are installed into a 10mm drilled hole formed through the membrane and into the masonry substrate. They are supplied without a fitted rubber sealing washer, distinguishing them from Wykamol CM Brick Plugs With Seals. The central hollow core accepts 5mm size 10 threaded screws, allowing secondary fixings for battens, tracking, dry-lining frames and compatible ancillary products without additional membrane penetrations. For non-meshed membranes, approximately 5 plugs per m² is normally suitable. For meshed membranes, approximately 15 plugs per m² at around 250mm centres is generally required to hold the membrane tightly enough for plastering, rendering or plasterboard finishes.
Q) How is Wykamol Sealing Rope used with Wykamol CM Brick Plugs Without Seals?
A) Wykamol Sealing Rope is used with Wykamol CM Brick Plugs Without Seals in situations where a sealed fixing detail is required but a flat rubber washer would not compress evenly against the membrane surface. This is particularly relevant on vaulted ceilings, brick arches, sloping soffits and other curved or inclined substrates where surface geometry prevents consistent washer compression. The rope, which is a butyl-based sealing material, is wrapped or formed around the plug head before it is inserted into the drilled hole. As the plug is driven home, the rope compresses between the plug head and the membrane face, accommodating minor irregularities and creating a more reliable seal shaped to the geometry of the substrate than a flat washer could achieve.
Q) What membranes are Wykamol CM Brick Plugs Without Seals compatible with?
A) Wykamol CM Brick Plugs Without Seals are compatible with a range of Wykamol cavity drain membranes. They are suitable for Wykamol CM8, Wykamol CM3 and Wykamol CM8 Mesh in above-ground or non-water-bearing applications, and for selected Wykamol CM3 Mesh basement installations where a heavier duty brick plug fixing is preferred over lighter CM Plaster Plugs. This broader compatibility makes them a flexible fixing option for installers working across different Wykamol membrane specifications. As with any membrane fixing selection, suitability should always be confirmed against the project specification, the membrane manufacturer’s installation guidance, and the specific application requirements before installation proceeds.
Q) What secondary fixings can be made through Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals accept 5mm size 10 threaded screws through the central hollow core, providing ready-made anchor points for secondary fixings without creating additional penetrations through the cavity drain membrane. Timber battens, metal tracking, dry-lining frames and compatible ancillary products can all be fixed into the plug core, allowing internal finishing systems to be constructed in front of the membrane while preserving the waterproofing or damp proofing layer behind. This combined function reduces the total number of membrane penetrations in the finished installation, helping protect system integrity. Secondary fixings through the plug core should be limited to 5mm size 10 screws, and heavier loads should be assessed separately against the system design requirements.
Q) Can Wykamol CM Brick Plugs Without Seals be used on vaulted ceilings and brick arches?
A) Yes, Wykamol CM Brick Plugs Without Seals are particularly well suited to vaulted ceilings, brick arches, sloping soffits and other overhead or inclined surfaces where the curved geometry of the substrate makes a flat rubber washer impractical. On these surfaces, a conventional compression washer cannot sit evenly against the membrane face, resulting in an inconsistent or unreliable seal. By using Wykamol Sealing Rope formed around the plug head before insertion, a more adaptable seal is achieved that accommodates the curvature and minor surface irregularities of the arch or soffit. This approach mirrors the method used with Newton CDM NuSeal Plugs in Newton system installations, and provides a practical waterproofing detail for specialist overhead membrane fixing work.
Q) Are there practical tips for getting the best results when installing Wykamol CM Brick Plugs Without Seals?
A) For the best results with Wykamol CM Brick Plugs Without Seals, drill a clean 10mm hole and keep the drill bit straight to avoid enlarging the hole or tearing the membrane. Where a sealed fixing is required on vaulted, arched or inclined surfaces, prepare Wykamol Sealing Rope before installation and wrap it around each plug head before insertion rather than attempting to add it during hammering. Drive each plug fully home and confirm it is completely seated. For secondary fixings of battens, tracking or dry-lining, use 5mm size 10 screws into the plug core rather than drilling new holes. Plan the fixing layout across the full membrane area before starting, observing the appropriate density of 5 per m² for non-meshed or 15 per m² for meshed membranes.
Q) What are the limitations of Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals have several important limitations to be aware of. Because they are supplied without a fitted rubber sealing washer, they do not create a watertight compression seal at the fixing point by themselves. They must not be used as sealed waterproof fixings in standard below-ground cavity drain wall membrane installations without the addition of Wykamol Sealing Rope, as unprotected fixing penetrations compromise membrane integrity. Using these plugs in place of Wykamol CM Brick Plugs With Seals in basement waterproofing without rope sealing would be incorrect and potentially harmful to system performance. They are not general-purpose wall plugs, and masonry must be sound to achieve reliable anchorage. Secondary fixings are limited to 5mm size 10 screws within the plug core.
Key Features of Wykamol CM Brick Plugs Without Seals
✔️ Specialist 10mm x 60mm membrane fixing plugs for Wykamol cavity drain and damp proof membrane installations.
✔️ Supplied without sealing washers, suited to above-ground applications or where fixing is sealed using Sealing Rope.
✔️ Practical option for vaulted ceilings, brick arches and sloping soffits where compression washers may not sit evenly.
✔️ Central core accepts 5mm size 10 screws, allowing battens, tracking and dry-lining to be fixed through the plug.
✔️ Compatible across the Wykamol membrane range including CM8, CM3, CM8 Mesh and CM3 Mesh membranes.
Specialist Unsealed Fixing Plugs For Wykamol Cavity Drain Membrane Systems
Wykamol CM Brick Plugs Without Seals are specialist fixing plugs used within the Wykamol Waterproof Membrane System in situations where a secure mechanical fixing is required but where the fixing point does not need to be sealed by a built-in washer. Their core purpose is to secure Wykamol cavity drain membranes firmly to suitable masonry substrates, including brickwork, concrete, stone and blockwork, holding the membrane correctly against the wall during installation before dry-lining systems, battens, tracking, plasterboard or other internal finishes are fitted over the top. The plug also features a central hole that accepts 5mm size 10 threaded screws, allowing battens, tracking and compatible dry-lining systems to be fixed back to the wall without drilling separate additional holes through the membrane.
Unsealed Design Suited To Above-Ground And Rope-Sealed Fixing Details
The key difference between these plugs and the standard Wykamol CM Brick Plugs With Seals is the absence of the rubber grommet, which on the washered version compresses against the membrane face to help prevent water or damp passing through the drilled fixing point. Without this sealing washer, Wykamol CM Brick Plugs Without Seals should not be treated as a watertight fixing in their own right and are best suited to above-ground damp proofing, non-water-bearing membrane installations, or applications where the fixing penetration is sealed separately using Wykamol Sealing Rope. This makes them a practical and versatile option for installers who need a reliable mechanical fix without relying on an integral washer seal to manage moisture at the penetration point.
Ideal For Vaulted Soffits Brick Arches And Angled Membrane Installations
These non-sealed plugs prove particularly useful for more challenging membrane details, including vaulted ceilings, brick arches, sloping soffits and overhead or inclined surfaces where a standard rubber washer may not compress evenly against the membrane due to the angle or curvature of the substrate. Wykamol Sealing Rope can instead be carefully formed around the plug head to provide a more appropriate and adaptable seal suited to the specific geometry of the fixing detail. They are suitable for use across the Wykamol waterproof membrane range, including Wykamol CM8, CM3 and CM8 Mesh, and may also be used with CM3 Mesh in basement or more demanding applications where a heavier duty brick plug fixing is preferred over lighter Wykamol CM Plaster Plugs and stronger anchorage is genuinely required.
| Technical Information | |
|---|---|
| Specification | Detail |
| Plug Size | 10mm x 60mm |
| Pack Sizes | 100, 50 and 25 |
| Drill Hole Size | 10mm |
| Plugs Per m² | 5/m² non-meshed membranes, 15/m² meshed membranes |
| Fixing Method | Hammer driven |
| Seal Supplied | No rubber washer |
| Optional Seal | Wykamol Sealing Rope |
| Fixing Position | Through membrane stud |
| Main Use | Non-sealed membrane fixing |
| Suitable Membranes | CM8, CM3, CM8 Mesh |
| Other Membrane Use | Selected CM3 Mesh applications |
| Suitable Substrates | Brick, concrete, stone, masonry |
| Application Area | Above-ground or separately sealed |
| Screw Compatibility | 5mm size 10 screws |
| Secondary Use | Battens, tracking, dry-lining |
Product Benefits
-
Specialist Non-Sealed Membrane Fixing: Designed for securing Wykamol cavity drain membranes in situations where a built-in watertight compression seal is not required, making them well suited to non-water-bearing or separately sealed fixing details.
-
Suitable for Wykamol Waterproof Membranes: Compatible with Wykamol CM8, Wykamol CM3, Wykamol CM8 Mesh and selected CM3 Mesh applications, giving installers a practical fixing option across the Wykamol membrane range.
-
Useful Alternative to Washered Plugs: In situations where a sealed fixing is not necessary, these plugs provide the same core mechanical fixing function as Wykamol CM Brick Plugs With Seals, but without the fitted rubber grommet.
-
Suitable for Rope-Sealed Details: The plug can be used with Wykamol Sealing Rope where a separate seal is needed, particularly around awkward fixing points, irregular substrates or non-standard membrane details.
-
Practical for Vaulted and Inclined Surfaces: The non-washered design is particularly useful on vaulted ceilings, brick arches, sloping soffits and overhead surfaces, where a flat washer may not compress evenly against the membrane.
-
10mm x 60mm Fixing Size: The plug is installed into a 10mm drilled hole and provides a practical fixing depth for suitable brick, concrete, stone and other masonry substrates.
-
Accepts 5mm Size 10 Screws: The central core allows battens, tracking, dry-lining frames and other compatible ancillary products to be fixed through the plug without creating unnecessary extra membrane penetrations.
-
Supports Internal Finishing Systems: The plug can be used as a fixing point for dry-lining support systems, allowing internal finishes to be installed in front of the cavity drain membrane.
-
Suitable for Meshed and Non-Meshed Membranes: Can be used at approximately 5 plugs per m² on non-meshed membranes, or approximately 15 plugs per m² at 250mm centres on meshed membranes where tighter restraint is needed.
-
Heavy Duty Option for Certain Mesh Applications: In basement or higher demand situations, Wykamol CM Brick Plugs Without Seals may be selected for CM3 Mesh in situations where a stronger fixing is preferred over lighter plaster plug alternatives.
Typical Applications
-
Wykamol CM8 Membrane Fixing: Well suited to securing Wykamol CM8 cavity drain membrane to masonry substrates, in situations where a non-sealed or separately sealed fixing detail is appropriate.
-
Wykamol CM3 Membrane Fixing: Can be used with Wykamol CM3 membrane in waterproofing or damp management applications where a secure mechanical fixing is required.
-
Wykamol CM8 Mesh Installation: Well suited to fixing Wykamol CM8 Mesh, in situations where the membrane must be held tightly against the wall before plastering, rendering, dot and dab plasterboard or other compatible finishes.
-
Selected Wykamol CM3 Mesh Basement Applications: Can be used with Wykamol CM3 Mesh in situations where a heavier duty fixing is required in a basement or more demanding installation, instead of standard lighter Wykamol CM Plaster Plugs.
-
Above-Ground Damp Proofing: Well suited to above-ground membrane installations where the fixing point is not exposed to water pressure and does not require an integral watertight washer seal.
-
Non-Water-Bearing Membrane Areas: Appropriate for locations where the cavity drain membrane is being mechanically fixed, but where the fixing penetration is not expected to act as a water ingress route.
-
Vaulted Ceiling Membrane Fixing: Useful for fixing membranes to vaulted ceilings, where the plug head can be sealed separately with Wykamol Sealing Rope if a sealed fixing detail is required.
-
Brick Arch and Sloping Soffit Fixing: Well suited to arched, curved or sloping substrates, where a standard washered plug may not seat evenly and a rope-sealed fixing detail is more appropriate.
-
Batten and Tracking Installation: The plug core accepts 5mm size 10 screws, allowing timber battens, metal tracking and compatible lining supports to be fixed through the membrane plug.
-
Dry-Lining Frame Fixing: Can be used as an anchor point for compatible dry-lining systems, helping support internal wall finishes without creating additional holes through the membrane.
Q) What are Wykamol CM Brick Plugs Without Seals and what are they designed for?
A) Wykamol CM Brick Plugs Without Seals are specialist 10mm x 60mm membrane fixing plugs designed for securing Wykamol cavity drain membranes to brick, concrete, stone and other suitable masonry substrates in situations where an integral watertight compression seal is not required. They are supplied without rubber sealing washers, meaning they do not form a watertight seal at the fixing point by themselves. They are intended for above-ground or non-water-bearing applications, or for areas where the fixing point will be sealed separately with Wykamol Sealing Rope. They can also be used on vaulted ceilings, brick arches, sloping soffits and other overhead or inclined surfaces where a rope-sealed fixing is more suitable than a washered plug.
Q) What is the key difference between Wykamol CM Brick Plugs Without Seals and Wykamol CM Brick Plugs With Seals?
A) The fundamental difference between the two versions is the presence or absence of a fitted rubber sealing washer. Wykamol CM Brick Plugs With Seals incorporate a soft sprung rubber washer that compresses against the membrane face when the plug is driven home, creating a watertight seal at each fixing point. This makes them the standard choice for below-ground cavity drain wall membrane installations where sealed fixings are essential. Wykamol CM Brick Plugs Without Seals omit this washer entirely, making them suitable for above-ground or non-water-bearing applications where an integral compression seal is unnecessary, or for installations on curved, inclined or overhead surfaces where Wykamol Sealing Rope provides a more appropriate seal than a flat rubber washer.
Q) Where can Wykamol CM Brick Plugs Without Seals be used in membrane installation work?
A) Wykamol CM Brick Plugs Without Seals are designed for a range of membrane fixing applications where an integral watertight seal is not required. Typical uses include fixing Wykamol CM8, CM3 and CM8 Mesh membranes in above-ground or non-water-bearing situations, vaulted ceiling membrane installation, brick arch and sloping soffit fixing with Wykamol Sealing Rope, selected CM3 Mesh basement applications where a heavier duty fixing is preferred, batten and tracking installation through the plug core, and dry-lining frame support without additional membrane penetrations. Their non-washered design also makes them practical on curved, angled or overhead substrates where a flat rubber washer would not compress evenly, requiring a separate rope-sealed fixing detail instead.
Q) When should Wykamol CM Brick Plugs Without Seals be used instead of the Wykamol CM Brick Plugs With Seals?
A) Wykamol CM Brick Plugs Without Seals should be chosen over the washered version in specific situations where an integral compression seal is either unnecessary or impractical. They are the correct choice for above-ground damp proofing where fixing points will not be exposed to water pressure, non-water-bearing membrane areas where seal continuity at each plug is not a system requirement, and overhead or inclined installations such as vaulted ceilings, brick arches and sloping soffits where a flat rubber washer cannot compress evenly against the curved surface. In those situations, Wykamol Sealing Rope is formed around the plug head instead. For standard below-ground wall cavity drain membrane installations where sealed fixings are critical, Wykamol CM Brick Plugs With Seals remain the recommended choice.
Q) What are the main advantages of Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals offer several practical advantages for specialist membrane fixing applications. The absence of a pre-fitted washer makes them specifically suited to above-ground, non-water-bearing or rope-sealed fixing details where a compression washer would be unnecessary or impractical. They are compatible with Wykamol CM8, CM3, CM8 Mesh and selected CM3 Mesh membranes, providing useful flexibility across the Wykamol range. The central core accepts 5mm size 10 screws for secondary batten, tracking and dry-lining fixings without additional membrane penetrations. Their suitability for use with Wykamol Sealing Rope makes them genuinely practical on vaulted, inclined and curved surfaces where consistent washer compression cannot be achieved with a standard flat rubber grommet.
Q) What technical specifications do Wykamol CM Brick Plugs Without Seals have?
A) Wykamol CM Brick Plugs Without Seals measure 10mm in diameter by 60mm in length and are installed into a 10mm drilled hole formed through the membrane and into the masonry substrate. They are supplied without a fitted rubber sealing washer, distinguishing them from Wykamol CM Brick Plugs With Seals. The central hollow core accepts 5mm size 10 threaded screws, allowing secondary fixings for battens, tracking, dry-lining frames and compatible ancillary products without additional membrane penetrations. For non-meshed membranes, approximately 5 plugs per m² is normally suitable. For meshed membranes, approximately 15 plugs per m² at around 250mm centres is generally required to hold the membrane tightly enough for plastering, rendering or plasterboard finishes.
Q) How is Wykamol Sealing Rope used with Wykamol CM Brick Plugs Without Seals?
A) Wykamol Sealing Rope is used with Wykamol CM Brick Plugs Without Seals in situations where a sealed fixing detail is required but a flat rubber washer would not compress evenly against the membrane surface. This is particularly relevant on vaulted ceilings, brick arches, sloping soffits and other curved or inclined substrates where surface geometry prevents consistent washer compression. The rope, which is a butyl-based sealing material, is wrapped or formed around the plug head before it is inserted into the drilled hole. As the plug is driven home, the rope compresses between the plug head and the membrane face, accommodating minor irregularities and creating a more reliable seal shaped to the geometry of the substrate than a flat washer could achieve.
Q) What membranes are Wykamol CM Brick Plugs Without Seals compatible with?
A) Wykamol CM Brick Plugs Without Seals are compatible with a range of Wykamol cavity drain membranes. They are suitable for Wykamol CM8, Wykamol CM3 and Wykamol CM8 Mesh in above-ground or non-water-bearing applications, and for selected Wykamol CM3 Mesh basement installations where a heavier duty brick plug fixing is preferred over lighter CM Plaster Plugs. This broader compatibility makes them a flexible fixing option for installers working across different Wykamol membrane specifications. As with any membrane fixing selection, suitability should always be confirmed against the project specification, the membrane manufacturer’s installation guidance, and the specific application requirements before installation proceeds.
Q) What secondary fixings can be made through Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals accept 5mm size 10 threaded screws through the central hollow core, providing ready-made anchor points for secondary fixings without creating additional penetrations through the cavity drain membrane. Timber battens, metal tracking, dry-lining frames and compatible ancillary products can all be fixed into the plug core, allowing internal finishing systems to be constructed in front of the membrane while preserving the waterproofing or damp proofing layer behind. This combined function reduces the total number of membrane penetrations in the finished installation, helping protect system integrity. Secondary fixings through the plug core should be limited to 5mm size 10 screws, and heavier loads should be assessed separately against the system design requirements.
Q) Can Wykamol CM Brick Plugs Without Seals be used on vaulted ceilings and brick arches?
A) Yes, Wykamol CM Brick Plugs Without Seals are particularly well suited to vaulted ceilings, brick arches, sloping soffits and other overhead or inclined surfaces where the curved geometry of the substrate makes a flat rubber washer impractical. On these surfaces, a conventional compression washer cannot sit evenly against the membrane face, resulting in an inconsistent or unreliable seal. By using Wykamol Sealing Rope formed around the plug head before insertion, a more adaptable seal is achieved that accommodates the curvature and minor surface irregularities of the arch or soffit. This approach mirrors the method used with Newton CDM NuSeal Plugs in Newton system installations, and provides a practical waterproofing detail for specialist overhead membrane fixing work.
Q) Are there practical tips for getting the best results when installing Wykamol CM Brick Plugs Without Seals?
A) For the best results with Wykamol CM Brick Plugs Without Seals, drill a clean 10mm hole and keep the drill bit straight to avoid enlarging the hole or tearing the membrane. Where a sealed fixing is required on vaulted, arched or inclined surfaces, prepare Wykamol Sealing Rope before installation and wrap it around each plug head before insertion rather than attempting to add it during hammering. Drive each plug fully home and confirm it is completely seated. For secondary fixings of battens, tracking or dry-lining, use 5mm size 10 screws into the plug core rather than drilling new holes. Plan the fixing layout across the full membrane area before starting, observing the appropriate density of 5 per m² for non-meshed or 15 per m² for meshed membranes.
Q) What are the limitations of Wykamol CM Brick Plugs Without Seals?
A) Wykamol CM Brick Plugs Without Seals have several important limitations to be aware of. Because they are supplied without a fitted rubber sealing washer, they do not create a watertight compression seal at the fixing point by themselves. They must not be used as sealed waterproof fixings in standard below-ground cavity drain wall membrane installations without the addition of Wykamol Sealing Rope, as unprotected fixing penetrations compromise membrane integrity. Using these plugs in place of Wykamol CM Brick Plugs With Seals in basement waterproofing without rope sealing would be incorrect and potentially harmful to system performance. They are not general-purpose wall plugs, and masonry must be sound to achieve reliable anchorage. Secondary fixings are limited to 5mm size 10 screws within the plug core.
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