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The 3M 7000000799 is a brushable, heat-resistant gasket sealant formulated for trade applications where fast-developing adhesion and flexibility are required. Supplied in a 5 oz tube, this yellow-tinted sealant bonds quickly to a wide range of surfaces and maintains its seal under thermal cycling. It is a go-to choice for HVAC technicians, plumbers, and mechanical contractors who need a reliable, versatile sealant for gasketed joints and sealing applications in residential and commercial systems.
This sealant is suited for use in mechanical rooms, equipment rooms, and field service environments where technicians are working with metal housings, baked enamel surfaces, wood, most plastics, neoprene, reclaim rubber, SBR rubber, and butyl rubber substrates. It is not approved for use with EPDM rubber. The brushable consistency allows for even application on irregular or contoured mating surfaces, making it practical for gasket sealing on HVAC equipment, ductwork connections, and plumbing flanges.
Designed for use on metal, baked enamel, wood, most plastics, neoprene, reclaim rubber, SBR rubber, and butyl rubber surfaces. Not for use with EPDM rubber.
Apply by licensed HVAC technicians, plumbers, or qualified mechanical contractors. Surfaces should be clean, dry, and free of oil or debris before application. Allow adequate cure time before pressurizing or energizing the system. Follow all applicable local mechanical codes and the manufacturer application instructions for joint preparation and sealant thickness.
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