{"product_id":"watco-masonry-waterproofer","title":"Watco Masonry Waterproofer","description":"\u003cp\u003eWatco Masonry Waterproofer is a penetrating cream treatment for protecting porous exterior masonry against wind-driven rain. Its silane and siloxane formulation lines the pores of the material to repel water while allowing the wall to breathe.\u003c\/p\u003e\n\u003cp\u003eThe white cream makes freshly treated areas easy to see, then penetrates and turns clear so the appearance of brick, stone or concrete is largely retained. It is suited to sound, unpainted masonry above ground level where a clear water-repellent treatment is preferred to a coloured coating. The cream can be applied with a roller, with a brush used around frames, deeper mortar joints and other details.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClear-drying, breathable water-repellent treatment.\u003c\/li\u003e\n\u003cli\u003eFor suitable porous brick, stone, concrete and masonry.\u003c\/li\u003e\n\u003cli\u003eUsually one coat, without a separate primer.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\u003cp\u003eThe surface must be clean, dry and absorbent enough for the cream to penetrate. Remove growth and loose material by wire brushing and repair cracks or open joints before treatment. Do not use detergents to prepare the wall. Newly pointed areas must be at least seven days old. Larger crevices need a suitable repair rather than relying on the waterproofer to bridge them.\u003c\/p\u003e\u003ch3\u003eTechnical Data\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eComposition\u003c\/th\u003e\n\u003ctd\u003eSingle pack, silane siloxane emulsion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eWhite cream that dries clear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended use\u003c\/th\u003e\n\u003ctd\u003eExterior masonry above ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum application temperature\u003c\/th\u003e\n\u003ctd\u003e10°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShelf life\u003c\/th\u003e\n\u003ctd\u003e12 months unopened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCoverage\u003c\/h3\u003e\u003cp\u003eApproximately 25m² per 5L (5m²\/L), depending on the porosity and texture of the masonry. One coat is usually sufficient. Measure the area and allow for detailed or highly absorbent surfaces.\u003c\/p\u003e\u003ch3\u003eDirections for Use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eCheck a small inconspicuous area if the final appearance is important.\u003c\/li\u003e\n\u003cli\u003eApply evenly by roller, using the temporary white appearance to check coverage.\u003c\/li\u003e\n\u003cli\u003eBrush into deep mortar beds, joints and areas the roller cannot reach. Treat carefully around window frames.\u003c\/li\u003e\n\u003cli\u003eWipe splashes from paintwork or glass within a few minutes. The cream starts turning clear in about an hour; maximum penetration is generally reached after twenty-four to forty-eight hours.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eLimitations\u003c\/h3\u003e\u003cp\u003eUse only on porous, unpainted surfaces. The treatment is intended for above-ground rain protection and will not solve rising damp or hydrostatic pressure below ground. It is not a crack filler: the technical sheet describes lining pores up to 0.3mm wide, with wider gaps needing repair. Drying and penetration depend on weather and substrate absorption. Store away from heat and direct sunlight and follow the safety sheet.\u003c\/p\u003e\u003ch3\u003eProduct FAQs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWill it change the brick colour?\u003c\/strong\u003e\u003cbr\u003eThe cream turns clear as it penetrates, helping retain the masonry's appearance. A small trial is sensible where appearance is critical.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it stop rising damp in a cellar?\u003c\/strong\u003e\u003cbr\u003eNo. It is intended for above-ground masonry protection against rain, not below-ground hydrostatic pressure or rising damp.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be applied over masonry paint?\u003c\/strong\u003e\u003cbr\u003eNo. The surface must be unpainted and porous so the waterproofer can penetrate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long before the treatment becomes clear?\u003c\/strong\u003e\u003cbr\u003eIt starts turning clear in around one hour and generally reaches maximum penetration in twenty-four to forty-eight hours, depending on conditions.\u003c\/p\u003e\u003ch3\u003eData Sheets\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-next-uk_tds_masonry_waterproofer_01_23.pdf?v=1794400502\" target=\"_blank\" rel=\"noopener\"\u003eTechnical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-next-masonry_waterproofer_gb.pdf?v=1794400502\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet (GB)\u003c\/a\u003e\u003c\/p\u003e","brand":"Watco","offers":[{"title":"5L","offer_id":58281771762004,"sku":"XMW5","price":166.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/9017\/6596\/files\/watco-next-just_treated_600_x_600.jpg?v=1794400533","url":"https:\/\/andrewscoatings.co.uk\/products\/watco-masonry-waterproofer","provider":"Andrews Coatings Ltd","version":"1.0","type":"link"}