Sealing & Joining Tapes
3M™ Heavy Duty Duct Tape 3939
3M Duct Tape 3939 is composed of waterproof polyethylene film over cloth scrim backing with a rubber adhesive used for demanding duct tape applications. Meets UL 723 standards
Applications
- Sealing heating ventilation and air conditioning ducts
![3M™ Heavy Duty Duct Tape 3939](https://cdn.sanity.io/images/jx4oix2c/production/c012abd630e2fedd631299c66c047b938ac543e6-1200x1200.jpg?w=400)