Permatex's The Right Stuff 90 Minute Series offers the fastest return to service in a in just 90 minutes! This leak-proof, elastomeric °Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff Black 90 Minute is designed for high-flexible, high oil resistance applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.