3M 1525CW_72X45.7 Fsk Facing Tape Silver 2.83 in X 150 Ft

Product Description

The 3M 1525CW_72X45.7 is a silver FSK (Foil-Scrim-Kraft) facing tape engineered for sealing and joining fibrous ductboard and sheet metal duct systems in HVAC installations. It combines a cold-weather acrylic adhesive with a tri-directional reinforced laminate backing, making it suitable for installations where temperatures drop well below freezing. At 5.5 mil thick and 2.83 inches wide, the tape delivers strong puncture and tear resistance without requiring special tools or application equipment. Licensed HVAC technicians and sheet metal contractors are the primary installers. The flexible backing conforms to curved and irregular duct surfaces, maintaining a reliable seal across a wide service temperature range of -40 to 240 degrees F.

This tape is used in residential and commercial HVAC ductwork applications. It is specifically designed for fibrous ductboard, sheet metal duct, and vapor seal applications on reinforced aluminum faced fiberglass insulation. The cold-weather acrylic adhesive formulation makes it a strong fit for installations in unconditioned spaces, cold climates, or winter construction schedules where standard acrylic tapes may lose tack. The tape unwinds and applies directly on site without specialized dispensing equipment, which keeps workflow efficient on busy mechanical jobsites.

Key Features

• Cold-weather acrylic adhesive rated for application and service down to -40 degrees F
• FSK backing — Foil, Scrim, and Kraft laminate — provides tri-directional reinforcement
• 5.5 mil total thickness for high puncture and tear resistance
• Flexible construction conforms to curved, round, or irregular duct surfaces
• No special tools or application methods required for field installation
• Meets UL 723 and manufactured under ISO 9001 quality standards

Compatibility

Designed for use on fibrous ductboard, sheet metal duct, and as a vapor seal for reinforced aluminum faced fiberglass duct systems.

Installation Notes

This tape is installed by licensed HVAC technicians and sheet metal workers as part of duct fabrication and sealing work. Power down the air handling system before applying tape to duct joints or seams. Ensure the duct surface is clean and dry before application — dust, oil, or moisture will reduce adhesive bond strength. Always verify that the tape application complies with local mechanical codes and any applicable duct construction standards such as SMACNA guidelines.

Technical Specifications

• Type: Facing Tape
• Color: Silver
• Width: 2.83 inches (72 millimeters)
• Length: 150 ft (45.7 meters)
• Thickness: 5.5 mil
• Backing Material: FSK — Foil, Scrim, and Kraft Laminate
• Adhesive Material: Cold Weather Acrylic
• Temperature Rating: -40 to 240 degrees F
• Application: Fibrous Ductboard, Sheet Metal Duct, Vapor Seal for Reinforced Aluminum Faced Fiberglass
• Applicable Standards: UL 723, ISO 9001

Standard Information

• Brand: 3M
• Manufacturer Part Number: 1525CW_72X45.7