Professional heavy-duty silver duct tape with superior holding power, clean removal capability, and water-resistant backing for maintenance, repair, and construction applications in industrial settings.
3M™ Heavy Duty Duct Tape 3939 is a professional-grade adhesive tape engineered for demanding maintenance, repair, and construction applications. Constructed with polyethylene film laminated to cloth scrim and reinforced with a rubber adhesive, this versatile tape delivers exceptional holding power and durability for both permanent and temporary applications. The silver-colored backing provides excellent visibility and professional appearance across various industrial settings.
Designed for heavy-duty performance, this tape features high tensile strength of 27 lbs and maintains reliable adhesion for up to one year indoors without deterioration. The cloth-reinforced construction ensures the tape tears cleanly from the roll by hand for convenient single-handed application, making it ideal for fast-paced work environments. With a maximum operating temperature of 200°F for up to 30 minutes, this tape is suitable for diverse environmental conditions and has been tested for flame spread using UL723 and ASTM E84 standards.
The tape's clean removal capability allows it to peel off opaque, non-glass indoor surfaces with minimal or no residue for up to one month after application, providing flexibility for temporary installations. Its water-resistant polyethylene backing resists moisture, wear, and abrasion while forming tight, moisture-resistant seals for containment applications. Each case contains 24 individually wrapped rolls, making inventory management and distribution convenient for professional users in MRO, construction, and maintenance operations.
Key Features
- High strength construction designed for heavy-duty maintenance, repair, and construction applications
- Clean removal capability - peels off opaque non-glass surfaces with minimal residue for up to one month
- Reliable hold with immediate adhesive bonding that lasts up to one year indoors without deterioration
- Strong polyethylene backing resists water, wear, and abrasion with conformability to irregular surfaces
- Hand-tearable cloth-reinforced construction for convenient single-handed application and easy roll dispensing
Technical Specifications
| Specification |
Value |
| Product Name | 3M Heavy Duty Duct Tape 3939 |
| Part Number | 3939 |
| UPC Code | 00051131069756 |
| Overall Width (Metric) | 48 mm |
| Overall Width (Imperial) | 1.88 inches |
| Overall Length (Metric) | 54.8 meters |
| Overall Length (Imperial) | 59.93 yards |
| Tape Thickness | 9.0 mil (0.22 mm) |
| Backing Material | Polyethylene/Cloth Scrim |
| Adhesive Type | Rubber |
| Product Color | Silver |
| Tensile Strength (Imperial) | 27 lbs |
| Tensile Strength (Metric) | 47.3 N/100mm |
| Elongation at Break | 17% |
| Maximum Operating Temperature | 200°F (93°C) for up to 30 minutes |
| Core Size (Metric) | 76.2 mm |
| Core Size (Imperial) | 3 inches |
| Indoor/Outdoor Use | Indoor |
| Units per Case | 24 rolls |
| Packaging | Individually wrapped rolls |
| Shelf Life | 12 months |
| Smallest Saleable Unit | Roll |
| Flame Spread Rating | Tested per UL723 and ASTM E84 standards |
| Performance Level | Performance |
| Adhesion Duration | Up to one year indoors without deterioration |
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