detail:asmaco rtv is single component form - in - place silicone gasket maker suitable for replacing most of pre-foamed / cut gaskets. It is fast curing and foams any shape immediately. On curing, gasket is permanently flexible, resistant to cracking, shrinking and resistant to oil, water, anti-freeze and transmission fluids. It can be effectively used for sealing automobile timing chain covers, differential covers and oil sump flanges etc.with stands extreme temperatures and pressure.features easy - to - use one component type. cures at room temperature at ambient humidity conditions. substitute for cut gaskets / pre-foamed gaskets resistant up to 300oc withstands more than 150psi pressure.