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 16114, PPS Lid & Liner Kit, Mini (6 fl oz), 200 Micron Full
Diameter Filter, 50 Lids & Liners per kit, 7100054606
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
ACS CX1250 Diamond Belt, 1/2" X 24" 20u
3M 06847, Overspray Masking Liquid Dry, 1 Gallon, 7010309222
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 19677, Scotch-Seal Industrial Sealant 800, Reddish Brown, 1 Gallon Drum, 7000000793, 4/Case
3M 08008, Black Super Weatherstrip and Gasket Adhesive, 5 fl oz, 7000045523, 6 per case
3M 25138, Scotch-Weld Threadlocker TL43, Blue, 10 mL Bottle, 7100039219, 10/case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Standard Abrasives 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Standard Abrasives 890194, S/C Unitized Wheel, 632, 12 in x 1/4 in x 1-1/4 in, 7010367081
Standard Abrasives 712149, Aluminum Oxide Handy Roll, P100 J-weight, 1-1/2 in x 50 yd, 7010295370
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 20903, PSA Cloth Disc 348D, P240 X-weight, 2 in x NH, Die 200P, 7000118877
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894 
