Newton CDM 503 Cavity Drain Membrane

Newton Waterproofing  |  SKU: BM06091
Newton CDM 503 is a slim 3mm cavity drain membrane for basement waterproofing. Ideal for space-restricted areas and vaulted ceilings.
Regular price £125.99 Ex VAT
£151.19 Inc VAT
Standard delivery by

Free delivery over £300 excluding VAT

Description

Newton CDM 503 is a slim-profile, 3mm-stud cavity drain membrane designed for internal waterproofing where space is at a premium. Despite its low profile, it functions as a high-performance "Type C" waterproofing system, creating an air gap that allows water to depressurize and drain safely to a collection point. It is particularly effective for earth-retained walls, vaulted soffits, and tunnels. Being BBA-certified and guaranteed for 30 years, it provides a reliable, long-term solution for creating dry Grade 3 environments. Its slim design makes it ideal for projects where room dimensions must be maintained as much as possible.

Benefits

  • Space-saving 3mm profile is ideal for tight applications without sacrificing waterproofing performance
  • Rapid installation with minimal preparation to the existing wall surface
  • BBA-certified (22/6357) with a life expectancy equal to the building's design life
  • Chemically inert and resistant to alkalines, saline solutions, and organic acids
  • Creates a maintainable drainage system in full compliance with BS 8102:2022

Good to know

  • Supplied in rolls of 2.0m x 20m (40m² coverage)
  • Product Code: M5
  • Features a white/translucent finish for a clean substrate
  • Generally used for walls and vaulted ceilings rather than heavy-duty floors
  • Should be installed using specialized Newton CDM fixing plugs and sealing tapes

Technical Information

Product Specifications

BrandNewton Waterproofing
Length20m
Width2m
ApplicationAn internal cavity drain membrane for waterproofing basement walls and vaults where a slim profile is required to maximize internal space.
Coverage40m²