• WP Flow

    Article No. 043125

    WP Flow

    Waterproofing, self-levelling flooring compound for interiors

    0431 | WP Flow
    Size / Quantity

    Product specifications

    On delivery

    Strength class Load class 1 “pressing water” as per WTA Code of Practice 4-6 “Subsequent waterproofing of components with ground contact”, table 7 (0.3 bar water pressure)
    Flexural tensile strength (28 days) ≥ 7.0 N/mm²
    Reaction to fire Class E
    Compressive strength (28 d) ≥ 30.0 N/mm²
    Hardened mortar bulk density 1.84 kg/dm³
    Adhesive pull strength > 1.5 N/mm²
    Layer thickness Single layer 5 - 30 mm
    Bulk density 1.3 kg/l
    Water requirement Approx. 6.0 l / 25 kg

    The stated values represent typical product characteristics and are not to be construed as binding product specifications.

    Field of application

    • For use on floors indoors
    • Mineral substrates
    • Waterproofing, self-flowing flooring compound
    • Floor renovation in conjunction with very low installation height
    • Interior waterproofing and levelling of basement floors


    • Self-flowing
    • Fast curing
    • Low-stress and crack-free setting
    • Water-impermeable, water-tight from 10 mm dry layer thickness
    • Compression- and wear-resistant
    • Can be applied by pump using suitable machine technology
    • Preparation
      • Substrate requirements

        Clean, dust-free and capable of supporting a load.

      • Preparations

        Existing expansion, movement and edge joints should be incorporated. If necessary, apply suitable edge insulation strips to rising components.

        Prepare damp wall connection areas as per WTA Code of Practice 4-6 "Subsequent waterproofing of components with ground contact". Seal existing cracks using suitable injection resin. Seal leaks and water ingress with WP RH rapid.


    • Application
      • Mortar cover / Self-levelling coating / Apply standing
      • Application temperature: min. 5 °C max. 25 °C
      • Application in one layer

        After mixing, pour out the material and spread quickly with a scraper/trowel, then roll with a spiked roller.
        Avoid streaks and seams.


        Application in two layers

        See application in one layer. Apply second layer within 24 hours. Minimum thickness of second layer > 10 mm.


    • Application instructions
      • Once it has hardened, mortar must not be made workable again by adding either water or more wet mortar.

        Protect fresh mortar surfaces from drying out too quickly (draughts, wind, direct sunlight), rain and frost.

        If necessary, fill individual, deeper defects beforehand with suitable products.

        When applying in two layers, the existing first layer must be checked again for suitability; if necessary, remove any separating layers and sintered layers.

    • Working tools / cleaning
      • Mortar cover / Self-levelling coating / Apply standing
      • Mixing tool, bucket for transporting/pouring, scraper, spiked roller

        Clean tools with water while the material is still fresh.

        Any material that has already begun to dry can only be removed mechanically.

    • Storage / shelf life
      • Shelf-life 9 months
      • Store frost-free and cool / protect for moisture / close containers
      • If stored unopened in its original container in a cool, dry place and protected against frost, the product will keep for 9 months.

    • Usage
      • 1.7 kg / mm thick layer / m²
      • Approx. 1.7 kg/m²/mm layer thickness

    • General information
      • The mixing water must be of drinking water quality.

        Low chromate content in accordance with Directive 2003/53/EC.

        The characteristic data of the product were calculated under laboratory conditions at 20°C and 65% relative humidity.

    • Disposal instructions
      • Larger quantities of leftover product should be disposed of in the original containers in accordance with the applicable regulations. Completely empty, clean containers should be recycled. Do not dispose of together with household waste. Do not allow to enter the sewage system. Do not empty into drains.

    • Safety / regulations
      • For further information on the safety aspects of transporting, storing and handling the product and on disposal and environmental matters, please see the current Safety Data Sheet.