Raincheck Universal Waterseal - Clear Exterior Brick, Stone, Wood Sealer

Raincheck Universal Water Seal is a colourless, water-based treatment that repels water on brick, concrete, stone & timber. Suitable for use on old or new buildings, it forms a breathable barrier that reduces water uptake while maintaining the surface's natural appearance. Effective on masonry & timber, Raincheck offers excellent beading performance and is suitable for weathered hardwoods & softwoods. It's UV-resistant, fast curing & non-hazardous to the environment. Apply two coats by brush, roller or spray. The second coat should follow while the first remains wet (within 30 minutes). Surfaces must be dry, porous & free from paints, stains or biological growth. Do not apply in damp weather or below 5 degrees C. Each litre treats approximately 3.5 m2 when applied in two coats. Penetration depth ranges from 2-5 mm. Independent testing shows a 100% reduction in water leakage through concrete & near-total absorption reduction in treated brick. Ideal for use above DPC level on clean, absorbent materials. Do not use on surfaces containing salts or on dense/low-porosity materials like pure limestone (use Raincheck LS instead). Keep treated areas protected from rain until fully dry.