Thompsons 10 Year Roof Seal is a fast-acting formula that provides a rainproof finish in just 6 hours. It flexes with the natural movement of the roof, ensuring a long-lasting seal. The product resists the sun's UV rays, which helps to prevent colour fading. With its 2.5L capacity, this sealant is suitable for a range of roofing applications. The grey colour allows for a subtle finish that blends in with most roof types.