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Newton 803 Newtonite

BBA certified damp proof membrane, comprising of high density polyethylene membrane with a rot-proof polythene mesh that is heat-welded during the manufacturing process to the surface of one side. The meshed surface creates a mechanical key to allow the membrane to be plastered, rendered or to receive dot & dab plasterboard.

  • Key Benefits
  • Typical Applications
  • Technical Data
  • Key Benefits

    Key Benefits

    • Provides a surface that is totally separated and unaffected by the dampness within the wall ensuring that the wall finish will never be affected by moisture or salts.
    • Superb ‘key’ for renders or plasters.
    • No need to use injected damp-proof courses which unnecessarily pump chemicals into the property.
    • Completely moisture resistant but allows vapour diffusion.
    • Quick and easy to install.
    • In many cases, the existing render can be left on the wall.
    • No requirement for damaging preparation to the wall surface.

    Typical Applications

    Typical Applications

    • As a damp-proof base for renders, plasters or dot & dab plasterboard.
    • As a damp-proofing system to deal with rising damp.

    Newton 803 Newtonite is light, clean and easy to handle. It can be cut with a sharp knife, scissors or shears. The membrane is inert and is highly resistant to water, alkalies, saline solutions and organic acids, and it is not affected by minerals. It is also resistant to bacteria, fungi and other small organisms.

    Newton 803 Newtonite is guaranteed against deterioration for 30 years, has a life expectancy of at least 50 years and is supported by BBA Certification Certificate Number 94/3010.

    Newton Waterproofing Systems was formed in 1848 and, as the first British company to produce a meshed membrane, we are now recognised as the leading supplier of damp proofing membranes in the UK. 803 Newtonite can be purchased directly from Newton or from leading builders merchants.

    Technical Data

    Technical Data

    Installed Performance Result
    Thickness at 100 kPa 2.64mm
    Compressive strength – Temporary loading >320 kPa
    Compressive strength – Permanent loading 100 kPa
    Thermal conductivity 0.461 W/mK
    Water vapour diffusion resistance – Sd value >604m
    Resistance to fire Euroclass E
    Chemical resistance – Excellent 100%
    Oxidation resistance – Excellent 100%

    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.

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