Permatex Ultra Red RTV Silicone Gasket Maker, 3 OZPermatex Ultra Red RTV Silicone Gasket Maker delivers exceptional heat resistance, designed for today's high-temperature automotive environments. This advanced, low-odor formula surpasses the performance of earlier red RTVs and withstands temperatures up to 650F (343C). It?s ideal for use where extreme thermal cycling occurs and replaces pre-cut gaskets. Suitable for sensor-equipped engines, this non-corrosive RTV is perfect for demanding applications like exhaust manifolds, headers, turbochargers, and slip-fit exhaust systems.Key Features: Withstands high temperatures up to 650F (343C); Outperforms previous generation Red RTV formulations; Sensor-safe, non-corrosive, and low odor; Ideal for high thermal cycling environments; Recommended for exhaust manifolds, headers, turbochargers, and slip-fit exhaust parts;