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.

Insize 3293-061, CAN SEAM MICROMETER, 0-.5", for steel cans, 6928640328497
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
ACS Visor, Shade 5 Carrier Frame for M Series Helmets (M-307 & M-407)
3M 34554, Cubitron II Net Sheet Roll, 220+, 80 mm x 10 m, 7100247496, 6 Rolls/Case
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 62611, Scotch-Weld Threadlocker TL62, Red, 250 mL Bottle, 7100039195, 2/case
Standard Abrasives 727090, Surface Conditioning Band, 1-1/2 in x 1 in MED, 7000122127
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
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
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943 
