A Tape with Versatility
Originally developed for heating, ventilation and air conditioning (HVAC) applications, duct tape is used today in a variety of maintenance, repair and construction settings. 3M™ Heavy Duty Duct Tape 3939 is an excellent choice for general indoor application in MRO and construction. The tape was tested for flame spread using test method UL723, ASTM E84 and can be used at temperatures as high as 200°F for up to 30 minutes. The sturdy cloth-reinforced tape can be torn from the roll by hand and sticks instantly, providing a wide range of convenient solutions. This tape has a classic silver-colored backing.
Recommended Applications
- Patching
- Bundling
- Reinforcing
- Tabbing
- Taping / splicing insulation
- Capping pipe
- Securing conduit ends
- Marking
- Labeling
- Temporary repair
- Hanging poly (polyethylene drapes)
- Protecting against light sandblast overspray
Built to Stick
3M’s family of rugged cloth and duct tapes adheres to most surfaces for applications ranging from bundling to moisture proofing, sealing to splicing, reinforcing to hanging poly drapes. Available in a variety of colors and strengths, they’re known best for their hand tearability, high tensile strength and conformability.

3M 89424, Ultimate FX Full Facepiece Reusable Respirator FF-403, Large, 7100001847, 4 EA/Case
3M 26580, Accuspray ONE Spray Gun System with PPS Series 2.0 Spray Cup System, 7100163226
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
3M 54357, Particulate Respirator 8246, R95, with Nuisance Level, Acid Gas Relief, 7000002059, 120 EA/Case
3M 33440, Cubitron II File Belt, 33440, 80+, 10 mm x 330 mm (3/8 in x 13 in), 7100033195, 10 belts per carton, 5 cartons per case
3M 50216, Temflex Cotton Friction Tape 1755, 3/4 in x 82-1/2 ft, Black, 7010297809
3M 10119, Synthetic Steel Wool Pad 10119NA, 0000 Super Fine, 7000126181
3M 08026, Sealant 730 UV, Clear, 305 mL Cartridge, 7100003045, 12/Case
Dynabrade 11068 Contact Wheel Ass'y, 5/16" Dia. x 3/8" W x 1/4" I.D., Crown Face, Steel
Standard Abrasives 708617, A/O Straight Cartridge Roll, 1/4 in x 1-1/2 in x 1/8 in 100, 7100080012
3M 87835, Scotch-Weld Epoxy Potting Compound DP270, Clear, 400 mL Duo-Pak, 7100077143,6/case
3M 08976, Scotch-Weld Epoxy Adhesive DP100 Plus, Clear, 48.5 mL Duo-Pak, 7100148750, 12/case
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686 
