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The DIVERSITECH 74000 is a 100% RTV silicone sealant formulated for high-temperature sealing applications in HVAC and related systems. Packaged in a 10.3 oz cartridge, it delivers a clear, flexible cure rated for continuous service up to 450 degrees F (232 degrees C). The sealant is UV resistant and water resistant, making it suitable for both indoor and outdoor installations. It is non-paintable. Licensed HVAC technicians and service professionals use this product for sealing joints, penetrations, and connections where thermal cycling and moisture exposure are ongoing concerns.
This sealant is appropriate for use in both ducted and ductless HVAC systems. Typical applications include sealing around duct connections, equipment housings, flue penetrations, and other high-temperature joints encountered in residential and light commercial HVAC service work. The clear color allows for discreet application on visible surfaces without affecting the finished appearance of the installation.
Designed for use in ducted and ductless HVAC system sealing applications where continuous high-temperature performance and moisture resistance are required.
Application is performed by licensed HVAC technicians using a standard cartridge caulk gun. Surfaces should be clean, dry, and free of grease or old sealant before application. Power down and isolate the equipment before working near electrical components or active refrigerant lines. Do not paint over the cured sealant, as it is non-paintable.
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