3M Aluminum Foil Tape 3340 2.5 x 50 yd 4.0 mil Silver HVAC Sealing and Patching Hot and Cold Air Ducts Fiberglass Duct Board Insulation Metal Repair
- VAPOR SEAL TAPE: 2. 0 mil aluminum foil backing (4. 0 mil total thickness) with a strong, pressure sensitive acrylic adhesive is ideal as a vapor seal tape for duct closure..
- HOT AND COLD TEMPERATURES: Combination of a foil backing and acrylic adhesive gives this tape a superb operational temperature range of -40F-300F (-40C-149C)..
- EASY RELEASING LINER: Poly coated Kraft paper liner protects the adhesive and keeps the tape ready for use..
- LONG LASTING: The foil backing serves as an excellent barrier against moisture, dust and many chemicals - making it strong, durable and long-lasting..
- APPLICATIONS: Heating Ventilation Air Conditioning (HVAC), duct closure, vapor seal on reinforced fiberglass duct board, rigid fiber glass duct board, flexible air ducts and air connectors..