EVERBUILD BRICKPAT5 401 Brick & Patio Cleaner 5 Litre\n- High performance transparent water repellent specially formulated to prevent water penetration on all mineral substrates such as brick, stone, concrete, pebbledash and rendering.- Based on the latest technology silicone resins, Waterseal does not contain solvents harmful to the user or the environment and is non-flammable.- Waterseal penetrates deeply into the treated surface to provide effective water repellence for many years.- Unaffected by ultra violet light and offers improved water beading compared with traditional solvent based products.