3M 3939 Heavy Duty Duct Tape, 9.0 mil, Silver, 48 mm x 54.8 m, 1 Roll

Specifications:

• Width: 48 mm (1.88 in)
• Length: 54.8 m (60 yd)
• Thickness: 9.0 mil (0.229 mm)
• Adhesive Type: Natural rubber
• Backing Material: Polyethylene-coated cloth
• Color: Silver
• Tensile Strength: 23 lb/in
• Adhesion to Steel: 50 oz/in
• Temperature Range: Up to 200°F (93°C) for 30 minutes
• Clean removal from many surfaces
• 1 Roll

Ideal Industries:

• Construction
• HVAC
• Automotive repair
• Electrical and utilities
• Maintenance and facility operations

Ideal Applications:

• Sealing ductwork and insulation
• Temporary repairs and patching
• Bundling and securing cables or materials
• Labeling and color coding
• Reinforcing and moisture sealing

The 3M 3939 Heavy Duty Duct Tape, 9.0 mil, Silver, 48 mm x 54.8 m is a rugged, high-tack tape engineered for demanding industrial applications where strength, adhesion, and durability are critical. Constructed with a polyethylene backing over a cloth scrim and rubber adhesive, this tape adheres reliably to rough, uneven, or dirty surfaces and performs well across a broad temperature range. The 9.0 mil thickness ensures superior tear resistance and tensile strength while remaining flexible enough for conformability on irregular shapes. Whether sealing, bundling, reinforcing, or temporary patching, 3M 3939 delivers long-lasting performance in construction, maintenance, HVAC, and general repair tasks. Known for its clean removal and residue-free finish, it’s a preferred choice for professionals who require a reliable, industrial-grade duct tape that won’t compromise under pressure.

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