
Ideal for sealing rigid, fiberglass ductboard systems and flexible, non-metallic air ducts
Our 3M™ Foil Tape 3340 is constructed using a 2.0 mil aluminum foil backing with a strong, pressure sensitive acrylic adhesive for long-term adhesion, along with an easy releasing poly coated kraft paper liner to protect the adhesive and keep the tape ready for use. The highly engineered aggressive acrylic adhesive performs in both cold and hot temperature conditions.
Recommended Applications
- Heating Ventilation Air Conditioning (HVAC)
- Duct closure
- Vapor seal on reinforced fiberglass duct board
- For use with rigid fiber glass duct board
- For use with flexible air ducts and air connectors
Superb Temperature Resistance
When sealing ducts and other surfaces for heating, ventilation and air conditioning systems, it’s essential to have a strong, long-lasting foil tape that can stand up well to hot and cold temperatures. The 3M™ Foil Tape 3340 has the combination of a foil backing and acrylic adhesive that gives our tape a superb operational temperature range of -40°F (-40°C) to 300°F (149°C). The benefits don’t end there; the foil backing also serves as an excellent barrier against moisture, dust and many chemicals — making it strong, durable and long-lasting. The very low moisture vapor transmission rate makes the tape a good sealant and the acrylic adhesive supplies superior temperature and UV resistance to give you a strong, lasting and reliable bond. 3M™ Foil Tape 3340 is used in a variety of applications across a number of industries, including: transportation, specialty vehicle, metalworking, construction, automotive, military and government, general industrial, MRO, electronics and aerospace.

3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
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Norton 66261014921 - 2" X 1/8" 50 - 80 Grit Coarse Grade Aluminum Oxide Bear-Tex Speed-Lok Rapid Blend Gray TR Non-Woven Unified Wheel, 60 Each
3M 62605, Scotch-Weld Threadlocker TL42, Blue, 10 mL Bottle, 7100039190, 10/case
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3M 29837, Sanding Screen, 180 Grit, 17 in x NH, 7100160762
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
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mL), 200u Micron Filter, 7100135935
Dynabrade 52169 Handle Assembly
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3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
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Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 25,000RPM, 33421
3M 21463, Marine Adhesive Sealant 5200, White, 5 Gallon Drum (Pail), 7010325698
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3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
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3M 76531, Cloth Belt 777F, 36 YF-weight, 2 in x 72 in, Film-lok, Single-flex, 7000148136, 50 per case
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ACS CX1250 Diamond Belts, 1/2" X 24" 200u
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3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
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