Xiameter (Dow Corning) 736 Heat Resistant Sealant is a one-part, non-slumping paste that cures to a rubbery solid at room temperature on exposure to water vapor in the air. This silicone product is formulated to perform at temperatures ranging from -65 to 260C (-85 to 500F) for continuous operation and to 315C (600F) for intermittent exposure. It can be used for numerous sealing and bonding applications.