RIW FWM (Flexible Wall Membrane)

RIW FWM is a ready-to-use, pale blue, solvent-free, soft paste which bonds perfectly to adhesives used for fixing ceramic tiles and natural stone. It may be used on all commonly encountered wall substrates including plasterboard, gypsum or cementitious render, lightweight cement block and marine plywood. RIW FWM should be applied using a brush or short pile roller to give a continuous thin layer of product at least 1mm thick. Junctions between wall and floor and all corners should be reinforced with Reinforcing Tape.

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Key Features

  • Lifetime guarantee
  • Solvent-free
  • Quick and easy to apply
  • Compatible with RIW Tilesafe and RIW Screedsafe
  • Suitable for use on all commonly encountered substrates

 

  • Product Details

    RIW FWM is a flexible coating for waterproofing wall surfaces prior to the
    application of ceramic tiles and natural stone in wetroom and other critical areas. It is a ready-to-use, pale blue, solvent-free, soft paste which bonds perfectly to adhesives used for fixing ceramic tiles and natural stone. It may be used on all commonly encountered wall substrates including plasterboard, gypsum or cementitious render, lightweight cement block and marine plywood. RIW FWM should be applied using a brush or short pile roller to give a continuous thin layer of product at least 1mm thick. Junctions between wall and floor and all corners should be reinforced with Reinforcing Tape.

    Specification M40 – Stone/Concrete/Quarry/Ceramic Tiling/Mosaic.

    Pack Size: 8kg

    Colour: Pale blue
    Coverage: 1kg per m² /coat
    8m² per 8kg pack – based on 1 coat

    Diagram of tanking system for a wet room using RIW Flexible wall membrane

  • FWM Performance & Composition

    Flexible Wall Membrane times & product details

    Allow 24 hours before tiling. Should a second coat be necessary, allow to dry for 2 hours between coats. * NOTE: All times refer to site conditions of 20°C. These times will be increased at lower temperatures and reduced at elevated temperatures. The above performance figures are typical values and should not be considered a product specification.

    Full technical data sheet available upon request from our technical department on 0844 327 6002.

    RIW FWM In A Typical Wetroom Construction

    Diagram of tanking system for a wet room using RIW Flexible wall membrane

    For timber floors – we recommend that the RIW Tilesafe
    membrane is applied to the entire wetroom floor.

    For solid floors – we recommend that the RIW Tilesafe
    membrane is applied to the shower area plus an
    additional one metre in either direction.

    RIW FWM – should then be applied to the walls of
    the shower area plus an additional 300mm and
    overlapped onto the RIW Tilesafe Reinforcing Tape.