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 45710, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 6 in x NH, Die 600Z, 7100113139
3M 76632, Roloc Disc 777F, 50 YF-weight, TR, 3 in, Die R300V, 7000045628
3M 65086, Scotch-Brite Diamond Wheel, 6" x 1" x 1" 645DC, 7010329878
3M 07414, Hand Sanding Metal Finishing Pad 7414NA, 4.375 in x 11 in, Maroon Medium, 7010315820
3M 53029, 663FC, 3" X 90", 20u, Diamond Trizact Belt 7100205965
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 25,000RPM, 33421
3M 19771, Utility Cloth Sheet 314D, 9 in x 11 in P100 J-weight, 7000021272
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Air Turbine Tools 310RDM - 6mm Router Hand Tool Series, 25,000RPM, 33423
3M 16580, Accuspray ONE Spray Gun System with Standard PPS, 7100099202
Dynabrade 51632 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet
3M 20911, PSA Cloth Disc 348D, 50 X-weight, 2 in x NH, Die 200P, 7000118871
3M 07415, Hand Sanding Wood Finishing Pad 7415NA, 4.375 in x 11 in, Gray Fine, 7010383728
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 02405, Utility Cloth Sheet 211K, 9 in x 11 in 220 J-weight, 7010299775
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 20942, Scotch-Weld Urethane Adhesive 3549, Brown, Part A, 5 Gallon Drum, (Pail), 7100041738
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 29844, Sanding Screen, 120 Grit, 16 in x NH, 7100160823
Insize 7341-12S, PIN GAGE HANDLE (with 1pc handle and 4 pairs of collecting bushes), .635-.704", 6928640360701
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169 
