3M 7100043747 Foil Tape Vapor Seal 2.83 in X 50 Yd

Product Description

The 3M 7100043747 is a tri-directionally reinforced, metallized polypropylene film/scrim/kraft (FSK) facing tape engineered for vapor seal applications in metal building insulation systems. At 10.7 mil total thickness, this foil tape delivers aggressive quick stick at normal temperatures while maintaining strong adhesion in cold weather conditions. The acrylic adhesive backing is specifically formulated for low-temperature performance, making it a reliable choice when HVAC and insulation crews work in unheated structures or during cold-weather construction phases. The tape measures 2.83 inches wide and 50 yards long per roll.

This tape is used primarily in commercial and industrial metal building insulation installations where a durable vapor barrier seal is required at seams, overlaps, and edges of faced insulation. Its ability to conform to curved, irregular, and uneven surfaces makes it well suited for wrapping around structural members, ductwork flanges, and transitions where a flat substrate is not always available. Insulation contractors and HVAC sheet metal technicians are the primary installers of this product.

Key Features

• 10.7 mil tri-directionally reinforced FSK construction resists puncture and tearing during installation
• Acrylic adhesive formulated for cold weather performance and quick stick at normal temperatures
• Conforms to curved, irregular, and uneven surfaces for complete seam coverage
• Designed specifically as a vapor seal for faced insulation in metal building applications
• Polypropylene film/scrim/kraft laminate construction provides a durable, long-lasting seal

Compatibility

Designed as an OEM-style facing tape for vapor seal applications on faced insulation products used in metal building construction and commercial HVAC insulation systems.

Installation Notes

This tape is typically applied by insulation contractors or HVAC technicians working with faced batt or blanket insulation in metal building systems. Surface preparation is critical — substrate surfaces should be clean, dry, and free of dust, oil, or frost before application for maximum adhesion. In cold weather installs, allow the tape and substrate to reach the manufacturer-recommended application temperature range before sealing seams. Follow applicable building energy codes and vapor barrier requirements for your jurisdiction when sealing insulation facings.

Technical Specifications

• Tape Thickness: 10.7 mil
• Width: 2.83 inches
• Length: 50 yards per roll
• Construction: Metallized polypropylene film/scrim/kraft laminate
• Adhesive Type: Acrylic
• Reinforcement: Tri-directional scrim
• Unit of Measure: Roll
• Package Weight: 26.4 pounds
• Package Dimensions: 12.38 inches x 12.38 inches x 12.44 inches
• UPC: 051128956156

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100043747