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  • Mapei Mapegum WPS – Various Sizes



    Mapegum WPS is a liquid waterproofing membrane for interior surfaces. Not suitable for continual immersion in water or areas that are subject to rising damp.

    Mapegum WPS is a ready-to-use, single component, solvent-free, grey coloured paste, with a base of synthetic resins in water dispersion. Mapegum WPS has a thixotropic consistency. This makes it easy to apply on all surfaces, especially those that are horizontal, sloping or vertical. After the quick evaporation of the water content, Mapegum WPS forms a flexible membrane which is non sticky, and strong enough to withstand light pedestrian traffic. It also creates an excellent surface that bonds perfectly to adhesives specifically used for laying ceramics, marble and natural stones.


    Mapegum WPS’s flexibility enables it to withstand normal expansion and contraction movements of the surface, due to variations in temperature and vibrations. Thanks to its flexibility, it acts as an anti-fracture membrane for substrates subject to light cracking.

    Mapegum WPS is resistant to water, limewater (pH > 12), and water that contains chlorides, and normal household detergents and cleaning products.


    For more information about Mapei and their products, please visit their website here.

    For our full Mapei range, click here. For more in our range of Adhesives, click here.


    Please be aware that this is a non stock item and lead times may vary.

  • Cromar Alpha Chem Integral Waterproofer


    It also improves the workability of the mortar. Integral Waterproofer New is suitable for use in rendering finishes and pointing mortars.

    It is also used in reconstructed stone and non-structural concrete members – particularly valuable in:‐

    – Semi‐dry mixes.
    – Internal and external rendering.
    – Special finishes.
    – Pebbledash and Harling
    – Rough Cast.
    – Stucco etc.


    – Makes renders and mortars water‐resistant.
    – Improves weathering properties.
    – Reduced suction aids pebble dashing – larger areas covered easily.
    – Surfaces stay cleaner longer.
    – Better appearance after rain
    – Less likelihood of efflorescence.
    – Drying shrinkage, crazing and cracking reduced.
    – Improved frost resistance.
    – Greatly reduced capillary attraction. Directions
    – Stir or shake well before use.
    – Integral Waterproofer New is ready for use and is added to the mix at the selected dosage rate.
    – Mix designs will depend on factors such as location and sand gradings. – Refer to local standards and codes of practice for guidance.


    – 1 litre per 50‐100kg cement.

    For more information on Cromer, please visit their website here.

    For the 5 litre version, please click here. For our other waterproofing and water-resistant products, please click here.

    Please note this is a non-stock item & extended lead times are adsvised

  • Cromar Alpha Chem Block & Paving Sealer



    Alpha Chem Block & Paving Sealer provides a durable penetrative seal to a wide variety of materials, such as concrete, screeds, brickwork, masonry and fibrous sheet materials. The sealer helps protect both new and existing concrete and masonry against pollutants that are both airborne and in water.


    – Non-yellowing
    – Dual Sealing and Curing Action
    – High Penetration
    – Suitable to receiving subsequent treatments
    – Can be used on both horizontal or vertical surfaces
    – Vapour permeable, allowing the substrate to breath
    – Provides increased protection to atmospheric gases, including carbon dioxide.



    For more information on Cromer, please visit their website here.

    For other waterproofing sealants, please click here. For our other waterproofing and water resistant products, please click here.

  • Cromar Alpha Chem Water Seal Solvent Free



    Water Seal SF provides long lasting effective protection of substrates such as brick, stone, concrete and rendering. This solvent free Water Seal provides water repellency with non‐staining and stain blocking features.


    For more information on Cromer, please visit their website here.

    For other waterproofing sealants, please click here. For our other waterproofing and water resistant products, please click here.

  • Protecta Waterproofer 3 Litres



    Protecta Waterproofer is a high viscosity cream-like impregnating fluid based on alkyl-alkoxy-silanes. When applied to cured Protecta® EX Mortar, the Waterproofer protects the surface by making it water repellent. The Waterproofer will also protect other porous substrates such as stone, brickwork and concrete in facades.

    Protecta Waterproofer also provides a comprehensive protection against efflorescence and decomposition caused by water-soluble pollutants, frost damage and attack by moulds and bacteria on damp substrates. The construction material’s physical properties, especially its water vapour permeability (Sd-value) is barely affected by application of Protecta Waterproofer.

    – Long-lasting and reliable
    – Simple, drip-free application with excellent workability
    – Water and VOC-free
    – High concentration of active ingredients
    – Alkaline stable
    – Does not build up a film
    – Extraordinary penetration depth
    – Can be applied without any loss, in one layer and without sag
    – Causes no discoloration or intensification of masonry surfaces


    For all our other fire and heat coatings, please click here.

    We stock the full Protecta range on our website.

    For all further information, please visit the Protecta website