CDM 503 Membrane

Newton CDM 503 is a BBA certified, high quality, 3mm cavity drain waterproofing membrane, for use within the Newton CDM System, our internally applied waterproofing system that also includes drainage and pumping systems.

CDM 503 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 503 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 small organisms.

Key Benefits

Typical Applications

British Standard 8102:2022

Technical Data

Available across the UK

Key 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
3mm deep for applications where space is tight

Typical Applications

Walls, floors, vaults, and tunnels as part of the Newton CDM System for below ground waterproofing applications.

British Standard 8102:2022

The British Standard 8102:2022 Code of Practice for Protection of Below Ground Structures Against Water Ingress is the main design guide for structural waterproofing in the UK.

The Newton CDM System is a maintainable system, so complies with BS 8102 requirements. The standard also specifies that: “a waterproofing specialist should be included as part of the design team so that an integrated waterproofing is created”

Therefore it is our recommendation that the Newton CDM System is installed by a Newton Specialist Contractor (NSBC).

Technical Data

Features	Result
Material	HDPE
Unit weight	0.5 kg/m2
Sheet thickness	0.6 mm
Stud height	3 mm
Colour	White
Water tightness @ 60 kPa; 24h	Pass
Working temperature	-50 to 80°C
Softening temperature	126°C
Tensile strength MD	416 N
Tensile strength CD	488 N
Resistance to static loading	> 20 kg
Compressive strength	250 kN
Reaction to fire	Class F*
Type of application	Type V
Life expectancy	Lifetime of structure

The data, even if carried out according to regulated tests are indicative and they may change when specific site conditions vary. *Newton Waterproofing Systems can provide fire-resistant membranes that are tested and classified to a fire rating of B-s2.d0. Get in touch directly for more information.

Available across the UK