Mapei Mapegum WPS


    Mapei Mapegum WPS is a quick-drying flexible liquid membrane for waterproofing internal surfaces. Used for:

    • Waterproofing walls and floors in bathrooms and shower cubicles before laying ceramic tiles, natural stone and mosaic
    • Waterproofing kitchen walls and floors, and work tops before laying ceramic tiles and natural stone

    For professional use only.

    Please note: Mapei products have a minimum spend of £100 (excluding any other manufacturer or range in the basket) excluding VAT.

    £39.20(ex. VAT)
    £47.04 (inc. VAT)
    Please choose your colour
    Available for Delivery (See Delivery Options Below)


    Features & Benefits

    Mapegum WPS is a ready-to-use, solvent-free, one-component, grey-coloured paste with a base of synthetic resins in water dispersion.

    Mapegum WPS has a thixotropic consistency which makes it easy to apply on horizontal, sloping and vertical surfaces.

    After rapid evaporation of the water content, Mapegum WPS forms a flexible membrane which is not sticky and which is strong enough to withstand light pedestrian traffic. It also forms an excellent surface which bonds perfectly to adhesives used for laying ceramics and natural stone.

    The flexibility of Mapegum WPS enables it to withstand normal expansion and contraction movements of the substrate due to temperature variations and vibrations.

    Mapegum WPS is resistant to water, limewater (pH > 12), water which contains chlorides and normal household detergents and cleaning products. Systems based on the use of Mapegum WPS flexible membrane, on which various types of tiles have been laid using MAPEI cementitious-based adhesives (such as Granirapid, Keraflex and Adesilex P9) and water dispersion adhesives (MapeGrip D2), have been certified for use in damp environments by the following institutes:

    • Säurefliesner (Germany)
    • Sp Swedish National Testing & Research Institute (Sweden)
    • Norwegian Research and Building Institute (Norway)

    • Mapegum WPS may be used on the following:
      • Plasterboard, gypsum or cementitious render
      • Suitable tilebacker board
      • Cementitious, anhydrite substrates
      • Existing ceramic and natural stone
    • Suitable for waterproofing indoor floor and wall surfaces that are not subject to rising damp nor in permanent water immersion
    • Flexible, anti-fracture membrane
    • Apply before the installation of ceramic tiles or stone material
    • Product certified EC1 Plus by the GEV Institute (Gemeinschaft Emissions-kontrollierte Verlegewerkstoffe e.V) as a product with very low emission of volatile organic compounds
    • Ready to use
    • Rapid application
    • Floor coverings may be installed after 12 hours
    • Excellent elongation properties
    • No reinforcement required
    • Some application examples
    • Waterproofing walls and floors in bathrooms and shower cubicles before laying ceramic tiles, natural stone and mosaic
    • Waterproofing kitchen walls and floors, and work tops before laying ceramic tiles and natural stone

    Product Details

    Data sheet

    For Use By
    Professional Use
    Interior / Exterior Use
    Interior Use
    For Use On
    Plasterboard, gypsum or cementitious render, suitable tilebacker board, cementitious, anhydrite substrates and existing ceramic and natural stone
    Application Method
    Trowel, roller, brush, spray (dilute with up to 5% water)
    Single, Two or Three Pack
    Pack Size
    5kg, 10kg, 20kg
    Approximately 1.2 kg/m² in two coats, equal to 0.8 mm wet thickness (equivalent to 0.5 mm dry thickness)
    Max. Application Temperature
    +35 C
    Min. Application Temperature
    +5 C
    Shelf Life (from date of manufacture)
    24 months
    Dry to Recoat
    60 minutes
    Dry for Topcoat
    12-24 hours
    Water Vapour Permeability
    S ≥ 5 m (per 1 mm thickness of dry film)
    Light Grey
    Base Type
    Suitable For Use On
    Suitable For Use On
    Suitable For Use On
    Ceramic Tile
    Suitable For Use On
    Application Method
    Application Method
    Application Method
    Application Method
    Quick Drying
    Product Type
    Colour Family

    Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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    Mapei Mapegum WPS is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

    Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

    Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

    All delivery costs below are excluding VAT