Newton CDM 508 8mm Cavity Drain Membrane

Newton CDM 508 is a versatile 8mm cavity drain membrane for basement waterproofing. BBA-certified and durable for walls and floors.
Regular priceFrom £101.20 Ex VAT
£121.44 Inc VAT
Standard delivery by

Free delivery over £300 excluding VAT

Description

Newton CDM 508 is the cornerstone of the Newton CDM System, a versatile 8mm-stud cavity drain membrane designed for internal waterproofing of below-ground structures. It works by creating an air gap between the structure and the internal wall or floor, allowing water to depressurize and safely drain away to a sump and pump system. Available in both 500g/m² and 700g/m² variants, it provides a flexible solution for walls, floors, and vaulted soffits. BBA-certified and guaranteed for 30 years, it is rot-proof, chemically inert, and capable of creating a dry Grade 3 internal environment even in the most challenging basement conditions.

Benefits

  • Rapid installation with minimal surface preparation compared to traditional tanking methods
  • BBA certified (22/6357) with a life expectancy equal to the design life of the structure
  • Highly resistant to aggressive groundwater, alkalines, saline solutions, and organic acids
  • Creates a maintainable "Type C" waterproofing system in compliance with BS 8102:2022
  • Non-polluting and safe for use in various residential and commercial environments

Good to know

  • Available in two weights: 500g/m² (Standard) and 700g/m² (Heavy Duty)

  • Multiple roll sizes available: 2.0m x 20m (40m²) and 2.4m x 20m (48m²)

  • The 700g/m² variant is specifically recommended for floor applications due to its higher compressive strength

  • Product Codes: M1-7-48 / M1-7-40 (700g) and M1-5-48 / M1-5-40 (500g)

  • Should be installed using Newton CDM fixing plugs, tapes, and drainage channels for a complete system

Technical Information

Product Specifications

BrandNewton Waterproofing
Length20m
Width2m
ApplicationAn internal cavity drain membrane for the waterproofing of basement walls, floors, and vaulted ceilings, directing water ingress to a drainage system.