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The BSC PREFERRED T9654251PK is a premium-grade aluminum-backed foil tape designed for HVAC, plumbing, and building envelope applications where thermal conductivity, air sealing, and moisture control are required. The tape features an acrylic adhesive system bonded to an aluminum foil backing, creating a barrier against air leakage and water infiltration. It is flame resistant and reflects heat and light, which improves visibility in low-light installation environments. The construction resists ultraviolet degradation for lasting outdoor or attic-space performance. It meets UL 723, Class L File R 7311 and UL 764c certifications, making it suitable for code-conscious installations.
This tape is used in residential and commercial HVAC ductwork sealing, insulation facing repair, vapor barrier seams, and general sheet metal fabrication. It is well suited for sealing duct joints, patching foil-faced insulation, and closing air gaps in building assemblies. HVAC technicians, sheet metal workers, insulation contractors, and general building trades installers are the primary users. The thermally conductive backing helps maintain system efficiency by eliminating air bypass at duct connections and insulation seams.
Designed as an OEM-style replacement and general-use foil tape suitable for standard HVAC ductwork sealing, insulation facing repair, and building envelope air sealing applications.
Installation is typically performed by HVAC technicians, insulation contractors, or sheet metal workers. Before applying, ensure the substrate surface is clean, dry, and free of dust, oil, or loose material to achieve full adhesive contact. Power down any active HVAC system before working inside duct chases or air handlers. Follow applicable mechanical codes and manufacturer surface temperature guidelines when applying to duct systems near heat sources.
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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