The Permatex Ultra Synthetic RTV Gasket Maker, recommended for use in close tolerance applications and high-performance parts, is specially designed for use on vehicles with synthetic motor oils. The Ultra Synthetic RTV Gasket Maker is formulated to resist the aggressive chemical properties used in synthetic oils and prevent leak paths commonly associated with synthetic oil applications. This product can be used as either a formed-in-place gasket maker or sealant. Applications include oil pans, valve covers, oil pumps, timing gear covers, intake manifold end seals and more. It provides adhesion and flexibility and maintains a tough, reliable silicone rubber seal. It will not harden, shrink or crack, according to the company. The gasket maker is also low odor, non-corrosive, non-flammable and sensor safe. When cured, it creates a flexible seal that resists aging, weathering and thermal cycling. The gasket maker is temperature-resistant is up to 500 degrees F.
