Permatex 3.35 oz. Ultra Black OEM Hi Temp Room Temperature Vulcanizing Gasket Material. It meets all performance specs for OE silicone gaskets. It is fast curing, non-odor and non-corrosive. It has a temperature range from -75 degrees to 625 degrees. It is ideal for use on metal, glass, and ceramic. It is easy to apply and can be used on a variety of surfaces.