Black RTV Silicone Sealant, Silicone Gasket Maker, High Temp Up to 600F, Sensor Safe, Oil Resistance Flexible for Automotive, Engine, Gearboxes, 3 oz. High Temperature Resistant: This black RTV silicone sealant is designed to withstand temperatures from -76℉ up to 600°F, making it perfect for automotive and engine applications.