3M 7100043968 Fsk Foil Tape 4.87 in X 50 Yd Silver

Product Description

The 3M 7100043968 is a foil/scrim/kraft (FSK) laminated facing tape engineered for use on FSK-faced insulation board and duct systems. Coated with a pressure-sensitive, cold-weather solvent acrylic adhesive, this tape delivers quick tack at normal temperatures while maintaining reliable adhesion in low-temperature conditions. The laminated FSK backing provides high puncture and tear resistance, making it a durable choice for HVAC insulation sealing applications. Insulation installers and sheet metal contractors use this tape to seal and match FSK-faced ductboard and blanket insulation in both commercial and residential mechanical systems.

This tape is suited for fibrous ductboard, duct blankets, and sheet metal duct surfaces where an FSK-compatible seal is required. Its flexible backing conforms to curved, irregular, and fibrous surfaces without lifting or bridging. Cold-weather acrylic adhesive makes it appropriate for job sites where temperatures drop below standard installation conditions, including unconditioned mechanical rooms, attics, and exterior applications during cooler months.

Key Features

• FSK laminate backing compatible with foil/scrim/kraft faced insulation board and duct
• Cold-weather solvent acrylic adhesive formulated for low-temperature performance
• High puncture and tear resistance for long-term durability in demanding conditions
• Flexible construction conforms to curved and irregular duct surfaces
• No special tools or application equipment required for field installation

Compatibility

Designed for use with FSK-faced insulation board and duct, including fibrous ductboard and duct blanket systems where an FSK laminate facing tape is specified.

Installation Notes

This tape is typically applied by insulation installers or sheet metal contractors as part of duct sealing and insulation facing work. Surfaces should be clean, dry, and free of dust or oils before application to ensure full adhesive contact. Apply firm pressure along the entire tape length after positioning to activate the pressure-sensitive adhesive. Follow applicable mechanical and energy codes, such as ASHRAE 90.1 or local energy codes, for duct sealing requirements.

Technical Specifications

• Width: 4.87 inches
• Length: 50 yards
• Backing Type: Foil/Scrim/Kraft (FSK) Laminate
• Adhesive Type: Pressure-Sensitive Cold Weather Solvent Acrylic
• Color: Silver
• Unit of Measure: Roll
• Package Weight: 23.211 pounds
• Package Length: 11.25 inches
• Package Width: 11.25 inches
• Package Height: 10.63 inches
• UPC: 051128955883

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100043968