Newton CDM 503 Meshed Cavity Drain Membrane

Newton Waterproofing  |  SKU: BM06092
Newton CDM 503 Mesh is a slim 3mm meshed cavity drain membrane. Provides a mechanical key for direct plastering in basement waterproofing.
Regular price £229.03 Ex VAT
£274.84 Inc VAT
Standard delivery by

Free delivery over £300 excluding VAT

Description

Newton CDM 503 Mesh is a premium, 3mm-stud cavity drain membrane featuring a thermally welded polyethylene mesh on its front face. This mesh provides an excellent mechanical key, allowing plasters, renders, or lime mortars to be applied directly to the membrane. It is designed for internal waterproofing of earth-retained walls and vaulted ceilings where space is limited and a direct-plaster finish is required. As part of the Newton CDM System, it effectively manages water ingress while maintaining a slim profile. It is BBA-certified, rot-proof, and resistant to salts and chemicals commonly found in ground conditions.

Benefits

  • Integrated mesh surface provides a strong bond for various plaster and render finishes
  • Ultra-slim 3mm profile minimizes loss of internal room space
  • BBA-certified (22/6357) with a 30-year guarantee against deterioration
  • Quick and clean to install, requiring no extensive surface preparation
  • High chemical resistance against alkalines, saline solutions, and organic acids

Good to know

  • Supplied in rolls of 2.0m x 20m (40m² coverage)
  • Product Code: M11
  • Ideal for heritage and refurbishment projects where preserving internal dimensions is critical
  • Must be fixed using Newton CDM meshed plugs to ensure a secure key for finishes
  • Can contribute to achieving a Grade 3 dry environment as per BS 8102:2022

Technical Information

Product Specifications

BrandNewton Waterproofing
Length20m
Width2m
ApplicationAn internal meshed cavity drain membrane for waterproofing basement walls and vaults, providing a direct key for plaster and render finishes.
Coverage40m²