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 85561, Heavy Duty Duct Tape 3939, Silver, 24 mm x 54.8 m, 9.0 mil, 7000048814
3M 98534, Premium Matte Cloth (Gaffers) Tape GT3, Black, 72 mm x 50 m, 11 mil, 7010291525
Norton 66261014897 2" x 1/4" Bear-Tex NEX Rapid Blend AO Medium Grit TR (Type III) Non-Woven Wheel, 60 Each
3M 00581 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Medium, 2-1/2 in x 60 in, 7010329198
Dynabrade 22092 2-3/4" x 17" Hand Sanding Block
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 82238, Scotch-Weld Epoxy Adhesive 420, Off-White, Part B, 5 Gallon Drum(Pail), 7100001145
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 54370, Particulate Respirator 8576, P95, with Nuisance Level, Acid Gas Relief, 7000002061, 80 EA/Case
3M 01581, Scotch-Brite Cut and Polish Unitized Wheel, CP-UW, 5A Fine, 6 in x 1/4 in x 1/2 in, 7010364174
3M 01875, Charge-Collection Solar Tape 3011, 2 mm x 1200 m, 7010312686 
