Flex Seal is a rubberized sealant spray coating that sprays out as a liquid seeps into cracks and holes and dries to a watertight flexible coating to stop leaks fast. Flex Seal lasts for years can be painted any color once completely dry stays flexible and pliable even in the summer heat or cold of winter and protects surfaces from corrosion. It can be used on both wet or dry surfaces. 14 oz. Aerosol can. Clear