
Ideal for sealing rigid, fiberglass ductboard systems and flexible, non-metallic air ducts
Our 3Mâ„¢ 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 3Mâ„¢ 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. 3Mâ„¢ 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 20922, PSA Cloth Disc 348D, 60 X-weight, 1-1/2 in x NH, Die 150S, 7010326528.
3M 20922, PSA Cloth Disc 348D, 60 X-weight, 1-1/2 in x NH, Die 150S, 7010326528.						 Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082
Standard Abrasives 713066, PSA A/O Disc, 8 in x NH, 60, 7010370082						 3M 90335, Scotch Super Glue Liquid AD118D, .07 oz, 7000047660
3M 90335, Scotch Super Glue Liquid AD118D, .07 oz, 7000047660						 3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872						 3M 89515, Scotch-Weld PUR Applicator Main Nozzle, 7000046672
3M 89515, Scotch-Weld PUR Applicator Main Nozzle, 7000046672						 3M 30086, Scotch-Weld PUR Applicator Bench Mount Bracket Assembly, 7000121614
3M 30086, Scotch-Weld PUR Applicator Bench Mount Bracket Assembly, 7000121614						 3M 36881, Self-Stick Liquid Protection Fabric, Blue, 48 in x 300 ft, 7100169351
3M 36881, Self-Stick Liquid Protection Fabric, Blue, 48 in x 300 ft, 7100169351						 3M 08186, Replacement Applicator Plunger, 7010300589
3M 08186, Replacement Applicator Plunger, 7010300589						 3M 91773, Scotch Super Glue Liquid in Precision Applicator, AD124, .14 oz (4 g), 7100045780
3M 91773, Scotch Super Glue Liquid in Precision Applicator, AD124, .14 oz (4 g), 7100045780						 3M 06580, Marine Adhesive Sealant 4000 UV, White, 295 mL Cartridge, 7000046623, 12/Case
3M 06580, Marine Adhesive Sealant 4000 UV, White, 295 mL Cartridge, 7000046623, 12/Case						 Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty						 Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box						 Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet						 3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168						 3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894						 3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956
3M 26120, PPS Series 2.0 Adapter, Type S28, 17.5 mm Female, 19 TPI
Thread, 7100135956						

 
				 
				 
				 
				