01732 360 095

CDM 503 Mesh Membrane

BBALogoCertNo-22_6357Newton CDM 503 Mesh is a high quality, BBA certified, 3mm meshed cavity drain waterproofing membrane for use within the Newton CDM System, our internally applied waterproofing system that also includes drainage and pumping systems. The strong polyethylene mesh is thermally welded to the face of the membrane during manufacturing to provide a key for plasters and renders.

CDM 503 Mesh is suitable for the waterproofing of earth retained walls and vaulted soffits and 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 Mesh 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

    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
    • Meshed surface for application of plasters/rendersBES6001_Black

    Typical Applications

    Typical Applications

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

    British Standard 8102:2022

    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

    Technical Data

    Features Result
    Material HDPE
    Colour White
    Density 505 g/m2
    Width 2.0 m
    Length 20 m
    Area 40 m2
    Membrane thickness 0.6 mm
    Stud height 3.0 mm
    Working temperature -50 to 80ºC
    Softening temperature 126ºC
    Packaged weight 20.2 kg



    Installed Performance Result

    Water tightness at 60 kPa; 24h


    Tensile strength MD

    416 N

    Tensile strength CD

    488 N

    Resistance to static loading

    > 20 kg

    Compressive strength

    250 kN

    Fire resistance


    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

    Available across the UK

    Cavity Drain Waterproofing Solutions Across the UK

    We provide cavity drain waterproofing products and solutions across the whole of the UK:

    Speak to our friendly, expert team

    Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.

      By submitting your details you confirm that you agree to the storing and processing of your personal data by Newton Waterproofing as described in the privacy statement.

      Bank Holiday - We will be closed on Monday 27th reopening on Tuesday 28th May