J.V. Converting JVCC AF20 Aluminum Foil Tape – 2 mil Linered, Venture Formula Acrylic, 73 oz/in Adhesion, -22°F to 248°F, HVAC Duct Sealing & Insulation Repair Aluminum Tape (Silver, 3 in. x 50 yds.)

Most aluminum foil tape jobs are straightforward, until you're working in a 28°F attic in January, and your tape won't stick. Standard acrylic adhesives stiffen as ambient temperature drops toward freezing, leaving seams that fail inspection and require rework. Our foil tape for ductwork uses the Venture Tape formula solvent-based acrylic adhesive, which maintains effective tack and bonding performance at lower application temperatures than conventional acrylic systems. For HVAC contractors sealing ductwork in unheated buildings, insulation crews working winter schedules, or facility teams maintaining systems year-round, this is a functional difference, not a marketing claim. The vent duct tape delivers 73 oz/in adhesion to stainless steel with a service temperature range of -22°F to 248°F. The 2 mil aluminum foil carrier is conformable, wrapping curved surfaces, irregular seams, and duct connections without cracking. Total foil duct tape thickness is 3.6 mils. A paper release liner keeps the adhesive protected and clean until the moment of application. Beyond HVAC duct sealing, AF20 is used for: insulation jacket repair, vapor barrier seam sealing, pipe insulation lap seams, foil-faced board repairs, dryer duct tape applications, and bonding to metal and plastic substrates. The foil backing conforms to surfaces where rigid tapes would bridge and lose contact. Available in 1/2 in., 1 in., 1-1/2 in., and 2 in. widths × 50 yards. FindTape, specialty tape expertise since 2003.

• HVAC & DUCT SEALING TAPE: Bonds firmly to sheet metal ductwork, flex duct, HVAC board, and insulation jackets. Conforms to curved and irregular surfaces and is the standard choice for HVAC technicians, contractors, and facility maintenance teams.
• APPLIES IN COLD CONDITIONS, VENTURE TAPE FORMULA: The Venture formula solvent-based acrylic adhesive bonds effectively at lower ambient temperatures than standard acrylic tapes. This foil insulation tape is critical for winter HVAC work in unheated attics and buildings.
• -22°F TO 248°F SERVICE RANGE: Aluminum foil tape tested at 73 oz/in adhesion to stainless steel. A high heat tape that maintains bond across a wide temperature range, from cold-climate installation through sustained high-heat HVAC operation. 3.6 mil total thickness.
• PAPER LINER FOR CLEAN APPLICATION: The removable paper release liner on our silver foil tape, keeps adhesive clean until you're ready to apply. Conformable 2 mil aluminum foil carrier wraps curves, seams, and vapor barrier overlaps without cracking or delaminating.
• BEYOND HVAC, VAPOR BARRIERS, & INSULATION: Seals vapor barrier seams, patches insulation jacketing, repairs foil-faced materials, and adheres to metal and plastic surfaces. Available in 1/2", 1", 1-1/2", and 2" widths × 50 yds.