Permatex Moto Seal 1 Ultimate Gasket Maker Grey forms a tough flexible bond that is highly effective on irregular and uneven joint surfaces. Ideal for use on frequently disassembled engines and two and four cycle engines. This solvent-based bond fully seals within 20 minutes. Resists gasoline and other damaging fluids. Withstands temperatures 350 degree fahrenheit continuous, 400 degree fahrenheit intermittent. When a chemical gasket is not an option, Permatex offers a wide range of gasket sealants suitable for applications on both import and domestic vehicles of any model year or performance caliber.