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™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
3M 05442, Stikit Soft Hand Block, 2-3/4 x 5 in, 7000045435
3M 30697, Cloth Belt 577F, 120 YF-weight, 2 in x 72 in, Film-lok, Single-flex, 7010300158, 50 per case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196
Norton 66261013403 - 3" X 1/2" Extra Coarse Grade Silicon Carbide Bear-Tex Rapid Strip TR Stripping Disc, 10 Each
3M 36881, Self-Stick Liquid Protection Fabric, Blue, 48 in x 300 ft, 7100169351
3M 26109, PPS Series 2.0 Adapter, Type S23, 1/4 Female, 18 Thread NPS, 7100135941
3M 77408, Cloth Belt 777F, 50 YF-weight, 1/2 in x 24 in, Fabri-lok, Single-flex, 7000118438, 200 per case
3M 27359, Cloth Belt 970DZ, 24 YN-weight, 25 in x 75 in, Film-lok, Single-flex, 7010361224, 2 per case
Dynabrade 51623 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
3M 20905, PSA Cloth Disc 348D, P180 X-weight, 2 in x NH, Die 200P, 7000118876
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 25139, Scotch-Weld Threadlocker TL43, Blue, 50 mL Bottle, 7100039222, 10/case
3M 16615, Accuspray Atomizing Head, Blue, 1.2 mm, 7100086837 (4 Nozzle/Kit)
3M 26585, Accuspray Atomizing Head Refill Pack for 3M PPS Series 2.0,Clear, 1.8 mm, 7100152955
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 62606, Scotch-Weld Threadlocker TL42, Blue, 50 mL Bottle, 7100039193, 10/case
Dynabrade 95684 1/4" Male Coupler
3M™ 07012, Supplied Air Hose W-9435-100/07012(AAD), 100 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005375, 1 EA/Case
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 55053, Cubitron II Cloth Belt 984F, 80+ YF-weight, 1/2 in x 12 in, Fabri-lok, Single-flex, 7000119518, 200 per case
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 05048, Cloth Belt 384F, 80+ XF-weight, 1 in x 12 in, Fabri-lok, Full-flex, 7100141432, 200 per case
3M 49937, Roloc Disc 361F, 60 YF-weight, TSM, 2 in, Die RS200PM, 7000119016
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 97419, Aluminum Foil Tape 3380, Silver, 48 mm x 45 m, 3.25 mil, 7000049613 
