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.

Standard Abrasives 701656, Cartridge RoII Mandrel, 3/16 in x 2 in x 1/4 in x 1-1/4 in x 4 in CM-18, 7010368730
3M 28817, STIKIT LOW PROFILE DISC PAD, EXTRA FIRM, 5 IN X 3/8 IN X 5/16 IN, 24 EXTERNAL, 7010361145
Dynabrade 51862 .4 hp Trim Router (Complete), 30,000 RPM, 1/4 Collet
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Dynabrade 51624 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
3M 45120, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/4 in, 7010328349
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Insize 7261-200, INSIDE SPRING CALIPER, 8", 6928640319631
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
3M 09292, Rubber Sanding Block, 7000126886
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 40,000RPM, 33441
ACS CX1250 Diamond Belt, 1/2" X 24" 250u
Dynabrade 69522 Housing for 69500, 5,000 RPM
3M 53036, 663FC, 1/2" X 90", 20u, Diamond Trizact Belt 7100205970
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 34576, Scotch Clear Glue in 2-way Applicator, 6044, .95 oz, 7010371358
3M 05519, Sanding Block, Rubber, 2-3/4 in x 5 in, 7000000587
Dynabrade 51301 .5 hp Straight-Line Die Grinder
3M 02593, Stikit Gold Sheet Roll, P240, 2-3/4 in x 45 yd, 7000028244
3M 20227, Scotch-Seal Metal Sealant 2084, Silver, 5 oz Tube, 7000046343, 36/Case
Dynabrade 51703 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 1/8" Collet
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 05208, Hookit Sanding Block D/F, 70MM x 198MM, 7000028311
Standard Abrasives 716916, Cartridge RoII Mandrel, 6997818, 1/8 in x 3/4 in x 1/4 in x 6 in CM-XL, 7010368732
3M™ 94275, Versaflo™ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 09413, Scotch-Brite Contour Surface Paint and Varnish Remover 9413NA, 7000052005
3M 07414, Hand Sanding Metal Finishing Pad 7414NA, 4.375 in x 11 in, Maroon Medium, 7010315820
3M 04229, Scotch-Brite Hand Pad 7447B, HP-HP, A/O Very Fine, 6 in x 9 in, 7000027560, 60 ea/Case
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 51632 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet
3M 08367, Urethane Seam Sealer, Black, 310 mL Cartridge, 7000119968, 12 per case 
