Weatherproof 2.5 Litre Gloss Black Final coat is weatherproof in 1 hour Won't crack, peel or blister No need to prime previously painted wood Keeps its colour for 10 years, guaranteed Wood expands when it gets wet. Our Weatherproof 10 Year Exterior Wood Paint expands & flexes with the wood. This means it won't crack or peel. & it'll keeps your wood protected for 10 years