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 95848 Dynabrade Gear Oil
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 33501, Sanding Respirator, 03201, 7000120129, 2 per pack
Standard Abrasives 78518, Ceramic Pro Type 27 Flap Disc, 645121, 7 in x 7/8 40 Y-weight, 7010331463
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 51863 .7 hp Trim Router (Complete), 20,000 RPM, 1/4 Collet
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 62604, Scotch-Weld Threadlocker TL42, Blue, 1 mL Pipette, 7100064043, 100/case
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Standard Abrasives 724277, Buff and Blend Circle Buff GP, A/O Very Fine, 2 in x 2 Ply x 8-32, 7010368699
3M 05643 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Very Fine, 3-1/2 in x 15-1/2 in, 7000028436
Dynabrade 14000 Dynafile Abrasive Belt Tool
ACS CX1250 Diamond Belt, 1/2" X 24" 60u
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
Standard Abrasives 541150, Quick Change TS P.A.R.T. #10 Disc Mandrel, 5/8 in TA4 (PILOT), 7000121722
Standard Abrasives 827620, Buff and Blend HP Power Pad, 6 in x 9 in, A VFN, 7010310293, 50 ea/Case
3M 77512, Cloth Belt 777F, 60 YF-weight, 1 in x 42 in, Film-lok, Single-flex, 7010307736, 200 per case
Standard Abrasives 78513, Ceramic Pro Type 27 Flap Disc, 645110, 4-1/2 in x 7/8 60 Y-weight, 7010369540, 10 per case
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
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 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Standard Abrasives 727398, Buff and Blend Cross Buff HS, A/O Coarse, 2 in x 3/4 in x 2 Ply x 1/4-20, 7010369357
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 19769, Utility Cloth Sheet 314D, 9 in x 11 in P150 J-weight, 7000000357
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 94861 2' Max Flow Air Hose Assembly, Male/ Female Fittings, 5/16" I.D.
Dynabrade 90339 3-1/2" W x 15-1/2" L 320 Grit A/O DynaCut Belt, 10/pack
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 30189, Trizact Hookit Foam Sheets, 5000, 2-3/4 in x 5-1/2 in (70 mm x 140 mm), 7000120137, 5 sheets per carton
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 20967, Portable Utility Cloth Roll 314D, P240 J-weight, 1 in x 20 yd, 7010290604
3M 09099, Scotch-Brite Paint and Rust Stripper Large Area 9099NA, 7010375230
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933 
