Transparent HDPE Damp-Proofing Membrane with Mesh Face for Direct Plaster Finishes

Biokil Crown 3mm Meshed Membrane Clear is a high-quality cavity drainage and damp-proofing membrane manufactured from clear, high-density polyethylene (HDPE), with a pre-bonded mesh surface to accept direct plaster or render. Designed for above-ground internal applications, it isolates damp, salt-contaminated, or friable masonry from internal finishes, providing a long-lasting solution for damp-proofing and wall restoration in refurbishment, heritage, or domestic projects.

Key Features & Benefits

• Mesh-Bonded Surface: Accepts direct application of plaster, lime render, or renovating render without the need for boards.
• 3mm Stud Profile: Provides an air gap between damp substrates and interior finishes to allow ventilation and isolate moisture.
• Clear HDPE Material: Enables visual inspection of substrate during installation, ideal for conservation and remedial work.
• Breathable and Non-Invasive: Allows wall to dry while maintaining a secure finish – no need to remove contaminated substrates.
• Quick Installation: Lightweight and easy to cut, handle, and fix using standard membrane plugs and sealing tape.

Product Details

• Material: High-Density Polyethylene (HDPE) with welded mesh
• Stud Height: 3mm
• Thickness: Approx. 0.6mm
• Colour: Clear with white mesh face
• Roll Size: Typically 2m x 20m (40m²)
• Weight: Approx. 0.45 kg/m²
• Fixing Method: Use with Nu-Seal Plugs, Brick Plugs, and Sealing Tape or Overtape
• SKU: BCMESH3CLR

Application Instructions

1. Surface Preparation: Remove loose debris. No need to clean salts or fully dry the wall surface.
2. Membrane Fixing: Position membrane with mesh facing into the room and secure with plugs at 250mm centres.
3. Sealing Joints: Overlap mesh or butt joint membrane sheets and seal using Sealing Tape or Overtape.
4. Apply Finish: Apply plaster, lime mortar, or Biokil Crown Renovating Render directly onto the mesh surface.

Limitations

• Not suitable for use on floors or in below-ground waterproofing without full system specification.
• Protect from UV exposure before finishing with render or plaster.

Health & Safety

Non-toxic and inert. Wear gloves and eye protection during installation. Refer to the product Safety Data Sheet (SDS) for detailed guidance.