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 51926 Vane Set (4pk)
3M 91057, Scotch Restickable Mounting Squares R100S, 1 in x 1 in (2.54 cm x 2.54 cm) 18/pk, 7100245428
Dynabrade 40378 Rubber Drive Wheel, Mini Dynafile II
Dynabrade 96231 Bearing Plate for Arbor Press
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 17602, Repulpable Strong Single Coated Tape R3187, Kraft, 96 mm x 55 m, 7.5mil, 8 rolls per case, 7100028044
3M 21531, Safety-Walk Edging Compound, 7000028614
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 07109 Vane Set (5pk)
Dynabrade 11395 Guide Wheel
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 64649, VHB Tape 4950, White, 3/4 in x 36 yd, 45 mil, Small Pack, 3 Roll/Case, 7000123497
Dynabrade 52474 Vane Set (4pk)
3Mâ„¢ 37018, Supplied Air Respirator Vortex Cooling Assembly V-100/37018(AAD), 70070799013, 1 EA/Case
Dynabrade 60207 - 3,000 lb. Jack with 3/4" Vi-Sorb Pad
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 76751, Roloc Disc 777F, 60 YF-weight, TS, 3 in, Die RS300V, 7010363900
3M 26578, Accuspray ONE Pro Spray Gun Kit for PPS Series 2.0, 7100158715
3M 45208, Disc Pad Face Plate, 5 in Soft White, 7000120521
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
3M 26018, PPS Series 2.0 Adapter, Type S11, 3/8 Male, 18 Thread NPS, 7100135942
ACS CX1250 Diamond Belt, 1/2" X 24" 175u 
