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 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 82461 5" Dia. x 320 Grit A/O PSA Filmbac DynaCut Disc, 100/Box
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
ACS Diamond Cloth Belt, CX1250 3" X 30" 20U
3M 29836, Sanding Screen, 60 Grit, 18 in x NH, 7100160820
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 15515, Scotch-Brite EXL Unitized Wheel, XL-UW, 6A Medium, 1-1/2 in x 1/8 in x 3/16 in, 7100063701
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 26710, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 200 Micron Filter, 7100128902
Dynabrade 22093 4-1/2" x 9" Hand Sanding Block
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 03716, Scotch-Brite Cut and Polish Unitized Wheel, CP-UW, 7A Coarse, 2 in x 1/4 in x 1/4 in, 7100063702
3M 17098, Hood Assembly with Sealed Seams Inner Shroud and Premium Head Suspension S-857, 7000002350, 1 EA/Case
3M 94905, Scotch-Brite EXL PRO Deburring Wheel, EP-WL, 9S Fine, 6 in x 1 in x 1 in, 7100023492
Standard Abrasives 880476, Buff and Blend HS Wheel, 3 in x 3 Ply x 1/4 in A MED, 7100095564
Standard Abrasives 863110, A/O Unitized Wheel, 631, 2 in x 1/4 in x 1/4 in, 7000144629
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 45708, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 6 in x NH, Die 600Z, 7100113142
3M 41597, Polyurethane Adhesive Sealant 560, Black, 310 mL Cartridge, 7100005901, 12/Case
3M 29848, Sanding Screen, 180 Grit, 15 in x NH, 7100160815
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 92297, Drywall Quick Clip Pole Sander DRPS-0010, 3-5/16 in x 9-1/4 in, 7010332448
3Mâ„¢ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
3M 06524, Scotch Steel Gray Masking Paper, 06524, 24 in x 1000 ft, 1 per case, 7000045442
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
ACS CX1250 Diamond Belt, 1/2" X 24" 125u
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 25,000RPM, 33422
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10
3Mâ„¢ 17323, Versafloâ„¢ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613 
