Low-odor, non-corrosive, non-flammable, and sensor-safe Permatex® Ultra Synthetic RTV Gasket Maker resists chemical properties and prevents leak paths in vehicles with synthetic motor oils. Used as formed-in-place gasket maker or sealant, product provides adhesion and flexibility while maintaining reliable silicone rubber seal. Cured flexible seal, which will not harden, shrink, or crack, exhibits temperature resistance up to 500°F and resists aging, weathering, and thermal cycling.