{"title":"Damp \u0026 Stain Block","description":"\u003cp\u003eDamp \u0026amp; Stain Block is the stage between cleaning a surface and decorating it. It is a high-performance aerosol that permanently blocks damp, mould and water stains, leaving a clean, smooth white finish that is ready to paint over or can be left as it is.\u003c\/p\u003e\n\u003cp\u003eUse it where a mark would otherwise bleed through your finish coat: stains from leaks, condensation, smoke damage and previous mould growth. Emulsion on its own rarely covers these — the mark tends to reappear through the new paint within days, which is why a dedicated blocker sits between treatment and decoration rather than being optional.\u003c\/p\u003e\n\u003cp\u003eOrder matters here. Remove any visible mould first with \u003ca href=\"\/collections\/mould-removal-sprays\"\u003eAnti-Mould Sprays\u003c\/a\u003e and let the surface dry fully. Block the staining, then finish with \u003ca href=\"\/collections\/anti-mould-paint\"\u003ePaints\u003c\/a\u003e. Working out of sequence is the most common reason a repainted wall looks wrong again a fortnight later.\u003c\/p\u003e\n\u003cp\u003eIf the stain keeps returning after blocking, the moisture source has not been resolved. \u003ca href=\"\/blogs\/mould-advice-centre\/how-to-treat-damp-marks-and-water-stains-before-decorating\"\u003eHow to treat damp marks and water stains before decorating\u003c\/a\u003e covers what to check.\u003c\/p\u003e","products":[{"product_id":"damp-and-stain-block","title":"Damp \u0026 Stain Block Spray 400ml","description":"\u003cp\u003eA high-performance aerosol paint that permanently blocks damp, mould and water stains, leaving a clean, smooth white finish that’s ready to decorate or can be left as is. Covers stains from leaks, condensation, smoke damage and mould growth.\u003c\/p\u003e","brand":"Mould Solve","offers":[{"title":"Default Title","offer_id":57555508920664,"sku":"5065026589057","price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/0369\/3400\/files\/damp-and-mould-stain-blocker-400ml-front-transparent.png?v=1784133514"}],"url":"https:\/\/www.mould-solve.com\/collections\/damp-and-stain-block.oembed","provider":"Mould Solve","version":"1.0","type":"link"}