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    Elastomeric Waterproof Coatings

    This range of elastomeric waterproof coatings covers liquid-applied membranes that stretch with the surface, so they keep covering small cracks as a roof or wall moves. It includes white acrylic coatings for terraces and external walls, fibre reinforced and solar reflective versions, a black rubberized coating, an acrylic-bituminous blend, a transparent coating for stone and tile, and two cement-based flexible systems for wet areas and structures under water pressure. Whether you need a terrace waterproof coating or a waterproof coating for a basement or tank, the chooser below will point you to the right product.

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    Ready-to-use elastomeric coatings compared

    ProductTypeUse it forElongationCoverage
    RAINSEAL 200Single-component white acrylic elastomeric coatingRCC terraces, sloped roofs, external walls, metal roofing450% at break50–60 sq.ft per litre per coat (concrete)
    RAINSEAL FRC 623Single-component fibre reinforced acrylic elastomeric coatingRCC roofs and terraces, domes, metal sheet roofs450% at break50–60 sq.ft per litre per coat
    RAINSEAL CFR 613Cellulose fibre reinforced solar reflective acrylic coatingFlat roofs and terraces, sloped roofs, external walls200% at break50–60 sq.ft per litre per coat
    RAINSEAL RWC 902Single-component rubberized elastomeric coating, black / dark greyRCC terraces, metal sheets, over existing bitumen coatings700% at break50–60 sq.ft per litre per coat (concrete)
    RAINSEAL BMW 250Single-component acrylic-bituminous blended coating, dries blackTerraces, MS/ACC sheets, external retaining walls, bathrooms500% elongation50–60 sq.ft per litre per coat (plain surface)
    RAINSEAL CLEAR 202Transparent acrylic elastomeric coatingExposed stone cladding, decorative facades, tile surfacesSee product page30–40 sq.ft per litre

    Cement-based flexible coatings compared

    ProductTypeUse it forElongationCoverage
    ROOFCOAT FLEXI 100Acrylic polymer coating blended with cement and waterFlat roofs, balconies, bathrooms, planter boxes120%+ elongation20–30 sq.ft per litre for 2 coats
    ROOFBOND RFX PLUS 210Flexible reinforced waterproof coatingBasements, retaining walls, water tanks, lift pits, swimming pools120%+ elongation13–14 sq.m per 20.1 kg unit

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    Elastomeric Waterproof Coatings

    Durable elastomeric acrylic polymer modified cementitious waterproof systems

    8 Products
    1
    ROOFCOAT FLEXI 100

    High Performance Elastomeric Acrylic Polymer modified cementitious Waterproof System. Tough flexible hard wearing surface, resistant to UV rays. Jointless and seamless membrane.

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    2
    ROOFBOND RFX PLUS 210

    ROOFBOND RFX PLUS 210 is a high-performance flexible reinforced waterproof coating engineered for structures under sustained water pressure. It delivers 5–5.5 N/mm² tensile strength with 120%+ elongation, bridges cracks up to 3.5mm and shows zero water penetration at a 50-metre water column, with a bond strength of 2.0 N/mm² to prepared concrete and a stated durability of 10+ years.

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    3
    RAINSEAL 200

    Single-component, 100% pure acrylic elastomeric waterproof exterior coating for external walls, terraces, sloped roofs, MS/ACC sheets. White and heat-reflective, self-curing, with excellent elongation and recovery to bridge existing and future cracks. Remains unaffected by salt water, soap water, mild acids and alkalies, and acts as an effective heat transfer barrier.

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    4
    RAINSEAL CLEAR 202

    High Performance Acrylic Elastomeric Transparent waterproof Coating for visible surfaces.

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    5
    RAINSEAL RWC 902

    Single-component, cold-applied rubberized elastomeric flexible waterproof exterior coating — self-curing, with exceptional elongation and crack-bridging across a wide temperature range. Resistant to fungus, algae, salts, mild acids and alkalies.

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    6
    RAINSEAL BMW 250

    High-performance, elastomeric acrylic-bituminous blended waterproof coating for a wide range of surfaces — concrete, steel, and chemically treated floors. A water-based, high-solids, cold-applied, single-component liquid membrane, ready to use straight from the pack. Recommended for terraces, sloped roofs, MS/ACC sheets, external retaining walls, bathrooms and toilets.

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    7
    RAINSEAL FRC 623

    RAINSEAL FRC 623 is a single-component, 100% pure, multi-dimensional fibre reinforced acrylic elastomeric waterproof coating with the highest elongation in its family — 450% at break. Self-curing, tough and abrasion-resistant, with 7-bar water permeability resistance (BS EN 12390 & ASTM C 297), 80% heat reflectivity (ASTM E 903) and 2000-hour UV resistance (ASTM G 154). Compliant with ASTM C-836/89 A. Formerly RAINPROOF FRC 623.

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    8
    RAINSEAL CFR 613

    RAINSEAL CFR 613 is a single-component cellulose fibre reinforced aliphatic acrylic elastomeric solar reflective waterproof coating — the highest-SRI (106) coating in the Armstrong CFR/FRC family. Aliphatic film formation delivers inherent UV stability with no yellowing, reducing roof surface and interior room temperature by 8–10°C. 2000-hour UV resistance (ASTM G 154), 7-bar water permeability resistance and the longest 2-year shelf life in the range. Compliant with ASTM C-836/89 A and ISO 9001:2015. Formerly RAINPROOF CFR 613.

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