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The IMPERIAL MFG GROUP USA INC KK0205 is a high-temperature red silicone sealant packaged in a standard 10.3 oz cartridge. It forms a permanently flexible, waterproof seal that resists moisture, heat, and vibration. Rated to withstand temperatures up to 600 degrees F (316 degrees C), it is suited for demanding thermal environments where standard sealants fail. HVAC technicians, plumbers, and mechanical contractors reach for this product when a reliable, flexible seal is needed around exhaust components, flue fittings, and high-heat mechanical joints.
This sealant is designed for any application requiring a permanent, flexible, waterproof seal that must endure sustained heat, moisture exposure, and mechanical vibration. Typical uses include sealing joints on furnace flue connections, boiler fittings, engine exhaust components, and other high-temperature mechanical assemblies in residential and light commercial settings. The red color aids visual identification of high-temp sealant applications during inspection and service.
Suitable for any application requiring a permanently flexible, high-temperature waterproof seal, including flue connections, exhaust fittings, and high-heat mechanical joints in residential and light commercial systems.
Surface must be clean, dry, and free of oil or old sealant before application. Apply with a standard caulk gun and tool the bead before skinning begins. Allow adequate cure time before exposing the joint to heat or moisture. Follow applicable mechanical and building codes for sealant use on flue and exhaust connections.
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