3M 7100085917 Poly Coated Cloth Tape 390 2in X 60yd 11.7 Mil

Product Description

The 3M 7100085917 is a polyethylene coated cloth tape — sold as Scotch Polyethylene Coated Cloth Tape 390 — designed for applications that demand high-strength bonding and moisture resistance. The backing is a woven cloth laminated with polyethylene, giving it durability and conformability over irregular surfaces. The rubber adhesive provides aggressive tack and bonds instantly to a wide range of substrates. At 11.7 mil total thickness, this tape holds up in demanding environments while still tearing by hand without a dispenser. It is commonly installed by HVAC technicians, plumbers, electricians, and general contractors where a strong, moisture-resistant tape is required.

This tape is suited for residential and light commercial applications including HVAC duct sealing, pipe bundling, moisture barrier seaming, insulation securing, and general mechanical repairs. The 2-inch width and 60-yard roll length make it practical for both continuous runs and shorter patch work. The silver finish is standard for reflective or low-visibility tape applications in mechanical systems. Each roll weighs approximately 1.91 pounds.

Key Features

• Polyethylene coated cloth backing provides moisture resistance and durability
• Aggressive rubber adhesive bonds instantly to multiple substrate types
• 11.7 mil total thickness for high-strength performance
• Hand-tearable — no dispenser or cutting tool required
• Conformable backing adapts to irregular or curved surfaces
• 2-inch width x 60-yard length per roll for versatile coverage

Compatibility

Designed as a general-purpose, high-strength cloth tape suitable for HVAC, plumbing, electrical, and construction applications where moisture resistance and strong adhesion are required.

Installation Notes

Surface should be clean, dry, and free of oil or loose debris before application for best adhesion. No tools are required for tearing; apply firm hand pressure across the full tape width to ensure proper contact. When used in mechanical or HVAC systems, verify that the tape is appropriate for the operating temperature range of the application. Follow all applicable local codes and manufacturer guidelines for the system being serviced.

Technical Specifications

• Tape Series: Scotch 390
• Backing Material: Polyethylene Coated Cloth
• Adhesive Type: Rubber
• Total Thickness: 11.7 mil
• Width: 2 inches
• Length: 60 yards
• Color: Silver
• Roll Weight: 1.91 pounds
• Unit of Measure: Roll
• UPC: 00021200069710

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100085917