3M™ Heavy Duty Duct Tape 3939, Silver, 48 mm x 54.8 m, 9.0 mil

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.

Features
- Natural rubber adhesive grips on contact and holds with medium tensile strength to many surfaces
- Waterproof backing resists wear, abrasion, moisture, and weathering
- Tears easily straight across and down without curling
- Tack-free edges
- Surface can be written on
- Meets UL723, HUD, BOCA codes
- Polyethylene coated cloth scrim backing
- Natural rubber adhesive
- 9.0 mil (0.23mm) thickness
- 60 yds (54.8m) roll length
- 48mm width
- Silver color