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    Data Sheet

    Declaration of Performance

    Material Safety Data Sheet

    Product Overview

    Code: A18
    Unit of Sale: 0.31 litre tube

  • Non-toxic, solvent-free, multipurpose and single component silicone sealant, primarily used in conjunction with Newton System 800 Damp Proof membranes.

    Applied to the fixing plugs before they are fitted, Newton 801-M Mastic Sealant serves so as to seal the penetration and stop the occurence of a ‘bridge’ between the damp or stained substrate and the new internal surface.  Newton 801-M Mastic Sealant has a high resistance to both ageing and extremes of temperature, as well as achieving a high adhesive strength, without primer, on the majority of materials used in the building and engineering industries..

    Key Benefits

    Prevents efflorescent salts and staining to the finished surface

    Seals the fixing plug to the membrane

    Obtains a high adhesive strength without a primer

    Applicable to most materials used in the building and engineering industries, including, but not limited to laminated and double glass, aluminium, steel, stainless steel, anodised steel, treated wood, and PVC

    Also compatible with alkali substrates such as concrete and brick

    Applicable in temperatures as high as 150°C and as low as -50°C

    High resistance to ageing



    Typical Applications

    To seal fixing plugs to System 800 membranes, including Newton 803, Newton 803 Newtonite, and Newton 805 Newlath

    For sealing around service penetrations and protrusions through the substrate/membrane

    As a general, high performance and multipurpose sealant in the building industry

    Damp Proofing Shop

    You can buy Newton 801-M Mastic Sealant via our Damp Proofing Shop - individually or as part of our 7.5m2, 10m2, 15m2 and 40m2 damp proofing packs, which contain all the ancillaries you need.