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Product Description
- ALL-PURPOSE BACKING: Strong polyethylene backing resists water, wear, and abrasion
- CLEAN REMOVAL: Cleanly peels off of opaque, non-glass, indoor surfaces for up to one month
- HIGH STRENGTH CONSTRUCTION: Designed for use in heavy-duty maintenance, repair, and construction applications
- MAXIMUM CONFORMABILITY: Easily sticks to irregular surfaces and tight spaces without lifting
- RELIABLE HOLD: The adhesive bonds immediately and holds for up to one year indoors without deterioration
- WATER-TIGHT SEAL: Forms a tight, moisture-resistant seal in many containment situations
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.Trusted 3M Heavy Duty
The 3M Heavy Duty Duct Tape 3939 is designed for tough jobs, combining strength and reliability. This silver tape measures 24 mm by 54.8 m, making it ideal for various maintenance and repair tasks.
Its 9.0 mil thickness ensures durability, while the pack includes 36 rolls per case, providing plenty of tape for large projects or ongoing use.
Strong Polyethylene Backing
This duct tape features a strong polyethylene backing that resists water, wear, and abrasion. The silver color adds a classic look while maintaining toughness for indoor applications.
The backing’s durability helps the tape form a water-tight seal, making it suitable for containment and protection in construction and repair work.
High Strength Construction
Built for heavy-duty maintenance, repair, and construction, this tape offers high strength construction. It bonds immediately and holds firmly for up to one year indoors without deterioration.
The sturdy cloth-reinforced design allows it to be torn by hand easily, making it convenient for quick fixes and long-term applications alike.
Maximum Conformability Benefits
The tape’s maximum conformability lets it stick easily to irregular surfaces and tight spaces without lifting. This makes it perfect for patching, bundling, and reinforcing in tricky areas.
Its ability to cleanly peel off opaque, non-glass indoor surfaces for up to one month adds flexibility for temporary repairs or labeling tasks.
Convenient Pack Size
With 36 rolls per case, this duct tape pack is designed for professionals who need a reliable supply. Each roll’s 24 mm width and 54.8 m length provide ample tape for various uses.
This format supports efficient workflow in construction, HVAC, and maintenance, ensuring you have enough tape on hand for multiple projects.