The Bison High-Temperature Silicone Sealant is designed to withstand extreme heat, up to 260°C continuously and briefly up to 300°C. This red sealant is easy to apply and forms a surface skin in about 5 minutes. It cures fully with humidity and can reach maximum heat resistance faster if gently heated. Perfect for sealing joints exposed to grease, oil, coolant, and fuels, it provides a durable, reliable, high-heat seal for automotive, industrial, and home applications.