J-B Weld 31914 Red High Temperature RTV Silicone Gasket Maker and Sealant - 10.3 oz. Red RTV silicone gasketing material designed for use in high temperature mechanical assemblies Great for oil pans, valve covers, exhaust manifolds, differential covers and more Temperature resistant up to 650 degrees Fahrenheit Sets in 1 hour and will not shrink or crack J-B Weld is proudly made in the USA