Permatex 82194 Ultra Grey Rigid High-Torque RTV Silicone Gasket Maker is a premium, high-performance silicone sealant designed to deliver a durable, long-lasting seal in automotive, industrial, and mechanical applications. Ideal for high-torque, high-temperature environments, this advanced RTV (Room Temperature Vulcanizing) gasket maker is specifically engineered to withstand extreme conditions. It offers superior resistance to oil, coolant, and other automotive fluids, making it perfect for sealing engine components such as valve covers, oil pans, timing covers, and water pumps. The Ultra Grey formula is ultra-durable, forming a rigid, firm gasket