3M Aluminum Foil Tape 3340, 2.5" x 50 yd, HVAC sealing
Aluminum foil tape with vapor seal backing and adhesive for duct closure. Offers wide temperature range and durable moisture barrier. Customers note strong adhesion and easy use around corners
Highlights
- vapor seal tape for ducts
- wide temperature tolerance
- easy-to-use liner
Pros
- foil backing and acrylic adhesive
- wide operating temperature range
- easy releasing liner
- moisture and dust barrier
- strong adhesion
Cons
- mixed feedback on thickness
Best For
Features
- 2.0 mil aluminum foil backing with 4.0 mil total thickness and pressure sensitive acrylic adhesive for vapor sealing
- operational temperature range of -40F to 300F (-40C to 149C)
- poly coated kraft paper liner protects adhesive and keeps tape ready for use
- foil backing provides moisture, dust, and chemical resistance for durability
- suitable for HVAC duct closure and vapor sealing on reinforced fiberglass duct board
