This product is a high temperature resistant formula of up to 500F. It is an automotive flexible and Waterproof. It is suitable for sealing gaskets especialy and some other types of weather-stripping, outside of fireplace doors, shoes and boots of hard materials. It can also be used to bond some types of ceramic, porcelain, wood, aluminum, stainless steel, cultured marble, fiberglass, granite, tile, some hard rubbers and plastics.Caution: Uncured Sealant Causes Skin and Eye irritation upon contact. please read caution at the back of the pack before use.