Bostik ASA® Dampfix® PU

    one component, highly elastic, class 3, polyurethane waterproofing membrane system or applications covered by a tiling system

    Key Features

    • Provides a tough elastomeric waterproofing membrane when fully cured
    • Minimum dry film thickness achievable in 2 coats 
    • Does not contain bitumen 
    • Will not bleed through porous materials such as marble, natural stone and slate tiles 
    • Will not re-emulsify when immersed, after full cure. 
    • One component, ready to use 
    • Easy to apply 
    • Excellent bond strength to most primed common building substrates
    • Reaches sufficient cure in 72 hours allowing for fast placement of mortar beds & screeds

    High Performance Polyurethane Waterproofing Membrane

    ASA® Dampfix® PU is a one component, highly elastic, class 3, polyurethane waterproofing membrane system and is specifically formulated for applications where the waterproofing membrane is to be covered by a tiling system. This is a 2-coat system that can be applied over primed porous and non-porous substrates. 
    Recommended Uses

    • Interior surfaces
    • External surfaces
    • Residential applications
    • Commercial applications


    • As a waterproof membrane between the structural substrate and the reinforced unbonded tile screed
    • As a waterproofing membrane to internal wet area shower, bathroom, kitchen, laundry and toilet areas
    • As a waterproofing membrane to external
    • balconies & podium levels
    • All horizontal applications to be covered by a reinforced unbonded screed to falls prior to the application of tile or other surface wearing and protective systems


    • Concrete 
    • Cement
    • Rendered masonry 
    • Cement sheet (FC sheet)
    • Water resistant plasterboard
    • Structural plywood

    Related Products

    Bostik ASA® Dampfix® Gold

    Water Based Polyurethane Liquid Waterproofing Membrane

    View Product

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