The La-Co Markal EPOXY-STIK is an epoxy repair compound that can easily seal water system leaks and cracks and can repair, reshape, and rebuild almost anything. To use, simply remove the protective wrapping and mix the two compounds together. EPOXY-STIK® hardens in 5-10 minutes and after 1 hour can be drilled, tapped, filed, sawed, sanded, and painted. EPOXY-STIK can also be used to fix leaks in pipes, sheet metal, and ducts and can repair broken or loose floor and wall tiles, concrete and brick. The La-Co Markal EPOXY-STIK is 4 oz. and can withstand temperatures up to 250°F (121°C).