Oem Specified. Formulated For Hi-Temp Applications, Or Heavy-Duty Use (Such As Towing, Etc.). Replaces Almost Any Cut Gasket By Making Reliable "Formed-In-Place" Gaskets That Resist Cracking, Shrinking And Migrating Caused By Thermal Cycling. Coats Pre-Cut Gaskets To Increase Reliability. Temperature Range -65 F To 650 F (-54 C To 343 C) Intermittent; Resists Auto And Shop Fluids. First Generation 1970-1980 Gasket Maker.