Newton CDM 508 is a high-quality cavity drain waterproofing membrane, supplied in a number of sizes and in 500g/m2 and 700g/m2 variants for use within the Newton CDM System, our internally applied waterproofing system that also includes drainage and pumping systems.

CDM 508 is suitable for waterproofing earth-retained walls and vaulted soffits and floors. It is guaranteed against deterioration for 30 years, with a life expectancy of the design life of the building (DIN 9001:2000), and supported by BBA Agrément Certificate 22/6357.

CDM 508 is inert and non-polluting to drinking water, highly resistant to water, alkalines, saline solutions and organic acids, and not affected by minerals and hydrocarbons. It is also rot-proof and resistant to bacteria, fungi and tiny organisms.

Features and benefits:

Does not require extensive and damaging preparation to the wall surface
Speed of installation
Capable of delivering an environment to all levels within a Grade 3 environment to BS 8102:2022

Newton CDM 508 Membrane is available in the following variants:

CDM 508 700g/m² (Code M1-7-48): 2.4m x 20m – 48m²
CDM 508 700g/m² (Code M1-7-40): 2m x 20m – 40m²
CDM 508 500g/m² (Code M1-5-48): 2.4m x 20m – 48m²
CDM 508 500g/m² (Code M1-5-40): 2m x 20m – 40m²

Suitable substrates - Walls:

Concrete
Brick
Concrete block
ICF – With special longer fixing plugs

- Soffits:

Concrete – To fall
Brick – Arched or vaulted

- Floors:

Concrete raft or slab
Newton Fibran XPS 500-C closed cell extruded polystyrene insulation

Newton CDM 508 500g DoC