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 87062, Cubitron II Hookit Paper Disc 732U, 150+ C-weight, 6 in x NH, Die 600Z, 7100067093
3M 01187, Hookit Red Abrasive Disc 316U, 6 in, P800, 7000119779, 50 discs per carton
3M 01191, Hookit Red Abrasive Disc, 6 in, P500, 7000119781, 50 discs per carton
3M 01077, Hookit Gold Disc Dust Free 216U 6 in, P240, 7000119697, 100 Discs Per Carton
3M 00972, Hookit Gold Disc 216U 6 in, P500, 7000119713, 100 Discs Per Carton
3M 01219, Hookit Red Abrasive Disc, 6 in, P320, 7000119782, 50 discs per carton
Dynabrade 91644 2" W x 48" L 80 Grit A/O DynaCut Belt, 10/pack
Dynabrade 91646 2" W x 48" L 180 Grit A/O DynaCut Belt, 10/pack
3M 01221, Hookit Red Abrasive Disc, 6 in, P220, 7000119784, 50 discs per carton
Dynabrade 93541 1-1/2" Dia. x 8-32 Female Center Thread, 80 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 91574 6" Dynacut Extreme Orange Premium Film Disc, 120 Grit, Hook & Loop, Non-Vacuum, 50/Box
Dynabrade 93545 1-1/2" Dia. x 8-32 Female Center Thread, 220 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
3M 01262, Hookit Red Abrasive Disc, 6 in, 40, 7000119789, 25 discs per carton
Dynabrade 79936 3-1/2" Dia. x 120 Grit A/O Non-Vacuum Hook-Face DynaCut Disc, 100/Pack
3M 36420, Blue Net Disc Roll, 80, 6 in, 7100253742, 100 Discs/Roll
3M 36424, Blue Net Disc Roll, 220, 6 in, 7100254378, 100 Discs/Roll
Dynabrade 92582 3-1/2" Dia. x 100 Micron A/O Non-Vacuum Hook-Face Scalloped-Edge DynaCut Disc, 50/Box
Dynabrade 82445 6" Dia. x 120 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box 
