- An industrial strength duct tape that is abrasion- and moisture-resistant
- The tape consists of polyethylene film over a dense cloth scrim with an aggressive rubber adhesive used for demanding duct tape applications
- Uses include: sealing, holding, bundling, reinforcing, identifying, tabbing, wrapping, splicing and protecting
- Tested according to UL 723, ASTM E84.
![3M 3939 Heavy Duty Duct Tapes, 3.77 in x 60 yd x 9 mil, Silver, 1/ROL 3M 3939 Heavy Duty Duct Tapes, 3.77 in x 60 yd x 9 mil, Silver, 1/ROL](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/241570/346367/405-021200-85563__05000.1594869626.jpg?c=2)