Versachem 65309 Low Volatile High Temperature Red Silicone - 3 oz. High performance, moisture curing gasket maker; sensor safe Cures into a strong silicone rubber that maintains long term durability and flexibility Excellent for filling, sealing, bonding or weatherproofing; will not harden, shrink or crack Temperature Range: -65F to 650F (-73C to 343C) Suggested Applications: Valve covers, water pumps, oil pans, rear end covers, thermostats