Henry 487 100% Silicone White Roof Coating is a premium, 100% silicone, moisture-cure coating designed to protect many types of roofs as well reflect the sun's heat and UV rays. While suitable for use in all climates, the 100% silicone chemistry is especially suited for extreme environments, which are exposed to some of the hottest and wettest weather with intense UV exposure. It is specially designed to maintain maximum weatherproofing, and reflectivity of heat and UV rays as it ages. Its moisture-cure chemistry creates a very aggressive chemical bond with the roof, which allows for permanent ponding water resistance, extreme durability, and superior capabilities of sealing and protection.