• Permatex Ultra Blue is a multi-purpose sensor-safe, low-odor, non-corrosive RTV gasket maker • Single component, room temperature vulcanizing gasketing compound • Material cures on exposure to moisture in the air to form a tough, flexible, silicone rubber gasket • Resists aging, weathering and thermal cycling without hardening, shrinking or cracking • Temperature range of -65°F to 500°F Intermittent • Senor-safe, low order, non-corrosive • Superior adhesion and flexibility • Improved oil resistance • Replaces most cut gaskets • Non-flammable, Non-toxic • Can be used as a gasket maker or dressing • Suggested Applications: Valve Covers; Oil Pans; Timing Gear Covers; Transmission Pans; Differential Covers