3M 7100043849 Fsk Foil Tape 1.89 Inches Cold Weather

Product Description

The 3M 7100043849 is a foil/scrim/kraft (FSK) laminated tape designed for sealing and facing FSK-insulated ductboard and duct blankets. It uses a pressure-sensitive, cold-weather solvent acrylic adhesive that delivers quick initial tack at normal temperatures and reliable adhesion in low-temperature conditions. The FSK laminate backing combines aluminum foil, fiberglass scrim, and kraft paper to deliver high puncture and tear resistance. HVAC technicians and insulation contractors use this tape for duct fabrication and insulation facing applications where standard tapes fail in cold weather.

This tape is suited for both residential and commercial HVAC duct systems. It is designed to match standard FSK-faced insulation board and duct blanket facings, making it a direct-fit sealing tape for fibrous ductboard joints, seams, and edges. The flexible backing conforms to curved and irregular duct surfaces. It installs without special tools or application equipment, making it practical for field work in unconditioned spaces, mechanical rooms, and attics where temperatures may be low during installation.

Key Features

• FSK laminate backing pairs with FSK-faced ductboard and insulation blankets
• Cold-weather acrylic adhesive performs in low-temperature installation environments
• High puncture and tear resistance for long-term durability in HVAC applications
• Flexible backing conforms to curved, fibrous, and irregular duct surfaces
• No special tools or application methods required for field installation

Compatibility

Designed as an OEM-style facing and seam tape for use with FSK-faced fibrous ductboard and duct blanket insulation in residential and commercial HVAC duct systems.

Installation Notes

This tape is typically installed by HVAC technicians and insulation contractors. Surface must be clean, dry, and free of dust or oil before applying tape to ductboard joints or insulation seams. Shut down the air handling system before sealing duct sections where airflow or pressure could compromise adhesion before the tape seats fully. Work in accordance with local mechanical codes and SMACNA duct construction standards when sealing and facing duct systems.

Technical Specifications

• Tape Width: 1.89 inches
• Backing Type: Foil/Scrim/Kraft (FSK) laminate
• Adhesive Type: Pressure-sensitive cold-weather solvent acrylic
• Unit of Measure: Roll
• Package Weight: 24.802 pounds
• Package Length: 12.38 inches
• Package Width: 12.38 inches
• Package Height: 12.44 inches
• Minimum Order Quantity: 24
• UPC: 750351500142

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100043849