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.

Dynabrade 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
Dynabrade 51811 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/16" Collet
3M 45038, Wheel Adapter Kit No.3, 5/8-11 External, 7000028423
Dynabrade 51622 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 05516, Polyurethane Glass Adhesive Sealant 590, Black, 310 mL Cartridge, 7100060280, 12/Case
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
Standard Abrasives 725012, Buff and Blend Cross Buff HS, A/O Medium, 1-1/2 in x 1/2 in x 2 Ply x 8-3, 7000046830
Dynabrade 51630 .1 hp Straight-Line Extension Pencil Grinder, Central Vacuum, 1/8" Collet
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 14725, Foam and Fabric Spray Adhesive 24, Orange, 16 fl oz Can (Net Wt 13.8 oz), 7100179450, 12/Case
3M 62820, Adhesive Sealant 760 UV, Gray, 600 mL Sausage Pack, 7000046611, 12/Case
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 88892, PSA Cloth Disc 348D, 60 X-weight, 15 in x NH, Die 1500A, 7010360718
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 16115, PPS Cup & Collar, Mini, 7000028417, 2 per carton
Standard Abrasives 840037, Quick Change Surface Conditioning GP Disc, A/O Coarse, TSM, Brown, 3/4 in, QS75KM, 7000121646, 50/case
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M 27610, Trizact Finesse-it Film Disc Roll 464LA, A3, 1-1/4 in x NH, Die 125C, 7000148156, 500 discs per roll
ACS Diamond Cloth Belt, CX1250 1/4" X 24" 75U 
