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 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 20227, Scotch-Seal Metal Sealant 2084, Silver, 5 oz Tube, 7000046343, 36/Case
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 47838, EMI Copper Foil Shielding Tape 1181, 23 in x 18 yd (58.42 cm x 16.5 m), 7000058121
Standard Abrasives 32953, PSA A/O Disc, 711880, 2 in x NH, 60, 7010310798
3M 05182, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1/2 in x 1 in, 7100050403,Box of 4
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 57894, 642WY 1/4" X 24", 50000 Mesh Diamond Cloth Belt, 7100230570
3M 81920, Hookit Microfinishing Film Disc 268L, 30 Mic, Type D, 5 in x NH, Die 500X, 7000118204, 500 ea/Case
3M 01334, PSA Cloth Disc 348D, 50 X-weight, 3 in x NH, Die 300V, 7000118879
3Mâ„¢ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Standard Abrasives 32985, Aluminum Oxide Overlap Disc, 714721, 60 Grit, 2 in x 8-32 x 2 Ply, 7100116380
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 07189, Particulate Welding Respirator 8515/07189(AAD), N95, 7000002112, 80 EA/Case
3Mâ„¢ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3Mâ„¢ 17379, Versafloâ„¢ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3Mâ„¢ 37018, Supplied Air Respirator Vortex Cooling Assembly V-100/37018(AAD), 70070799013, 1 EA/Case
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3Mâ„¢ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
NORTON 66623313931 - 3" Dia. Blaze Rapid Blend Quick-Change TS (TYPE II) Non-Woven Disc, 25 Each
3M 49938, Roloc Disc 361F, 80 YF-weight, TSM, 2 in, Die RS200PM, 7000119019
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
3M 16609, Accuspray Atomizing Head, Red, 2.0 mm, 7000045543 (4 Nozzles/Kit) (6 Kits/Case)
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 47408, 663FC 1" X 30", 70u Diamond Trizact Belts, 7010509031
3M 26104, PPS Series 2.0 Adapter, Type S20, 1/8 Male, 27 Thread NPSM, 7100135929
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 92317, Green Corps Cutting/Grinding Wheel, T27, 7 in x 1/8 in x 7/8, 36, 7000118489, 20 per case
Norton 66261014936 3" DIA X 1/8" Thick, Bear-Tex NEX Rapid Blend Quick-Change Type III Non-Woven Unified Wheel, 40 Each 
