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The SOUDAL 142163 is a high-temperature red silicone sealant formulated for sealing joints and penetrations in systems where elevated heat is a routine operating condition. The red color aids visual identification during inspection and service. This sealant is applied by HVAC technicians, plumbers, and mechanical contractors working on flue connections, exhaust systems, heat exchangers, boiler joints, and other high-heat assemblies where standard silicone would degrade or lose adhesion over time.
The 142163 is suited for residential and light commercial applications involving high-temperature surfaces and joints. Typical install scenarios include sealing around vent pipes, exhaust manifold connections, boiler access panels, and furnace flue collars. It bonds to metal, ceramic, glass, and most rigid substrates commonly found in heating and mechanical systems.
Designed as a general-purpose high-temperature silicone sealant for use on metal, ceramic, and rigid substrate joints in residential and light commercial heating and mechanical systems.
Application is performed by licensed HVAC technicians or plumbers following applicable mechanical and building codes. Shut down and allow the system to cool completely before applying sealant to any joint or penetration. Surfaces must be clean, dry, and free of grease or old sealant before application. Allow full cure time before returning the system to service or applying heat.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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