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The UK's leading direct supplier of industrial strength flooring products


Watco Anti Slip Liquid Roof Membrane 5L

Watco Anti Slip Liquid Roof Membrane 5L

(EXCL. VAT) £105.40 From (INCL. VAT) £126.48

Our popular liquid roof membrane with added safety features. When roof areas need maintenance or emergency access, you need to feel confident that surfaces won’t get slippery.

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Price Qty
Roller Frame & Handle 12" MEDIUM PILE ROLLER
£33.50 (EXCL. VAT) £40.20 (INCL. VAT)
5" Paint Brush
£7.10 (EXCL. VAT) £8.52 (INCL. VAT)
(EXCL. VAT) £105.40 From (INCL. VAT) £126.48
Product details
A cold applied, tough liquid membrane to seal roofs with the added benefit of a coarse, slip resistant surface.

Apply a basecoat of Watco Liquid Roof Membrane, followed by a topcoat of Anti Slip Liquid Roof Membrane. Sprinkle the grit supplied with the Anti Slip Liquid Roof Membrane onto the second coat before it cures to give a hard-wearing, coarse, slip resistant surface.

  • Ideal for safer maintenance work or emergency access in all weather conditions flexible seal
  • Extremely flexible to withstand the natural expansion and contraction of the roof structure
  • Tough aluminium oxide grit for a hard-wearing, coarse slip resistant surface
  • No compromise to the sealing properties of the membrane
  • UV stable
  • Ideal for roofs where water tends to pool or where algae grows

    Coverage approx. 5–7m² per 5 litres per coat and 12–16m² per 12.5 litres per coat.

    Pendulum Slip Test Values
    Dry PTVWet PTV
     68 Extremely low slip potential  66 Extremely low slip potential 

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    Technical Data Sheet
  • Specifications
    Appearance matt
    Delivery Time (Days) standard
    Primer Required no
    Usage - Interior / Exterior exterior
    Usage - Suitable for flat and pitched roofs
    Usage - Properties cold applied, long lasting, anti slip, seal roofs, flexible, UV stable
    Usage - Surfaces concrete, asphalt, roofing felt
    Max Operational Temp (deg C) 60
    Coverage (m² per litre/kg) 0.96 - 1.28
    Application - Drying time (hours) 4 at 20 degrees
    Application - Recommended Coats 2
    Preparation & Application
    Surface Preparation
    Inspect entire surface to assess soundness of existing substrates or coatings. Where necessary prepare test areas. Repairs to cracks, holes, blisters etc, should be carried out before application of the coating. Ensure roof surface is clean, dry and free from all loose debris and roof contaminants. All fungal growth, moss etc. should be treated with a suitable fungicidal cleaner. General dirt and contamination can be removed with Watco Bio D, a biodegradable solvent free degreaser.

    Please Note: Watco Anti Slip Liquid Roof Membrane is moisture activated, therefore once opened, all material must be used immediately. The tin cannot be re-sealed.

    Application If appearance is critical we recommend the application of a small trial area first.

    Do not apply if rain is forecast within 12 hours. Stir contents thoroughly (do not thin). Apply Watco Anti Slip Liquid Roof Membrane by brush or short/medium pile type roller. Work material well into substrate. Apply generous amounts to areas at a higher risk of water ingress i.e. joints and protrusions with a brush prior to the application of the main coating. Two coats are recommended. The second coat should be applied after a minimum of 8 hours and a maximum of 7 days.
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    Watco UK Ltd, Watco House, Filmer Grove, Godalming, Surrey GU7 3AL

    Company Registered in England – Number 459144. VAT number 413208691. Registered office: 37 St Margarets Street, Canterbury, Kent CT1 2TU