3M 7010374255 Glass Cloth Tape 398FR White 3in X 36yd

Product Description

The 3M 7010374255 is a white glass cloth tape with an acrylic adhesive, sold as the 3M Flame Retardant Sealing Tape 398FR. It is designed for applications that demand high adhesion, an abrasion-resistant glass cloth backing, and verified flame retardant properties. The tape meets flame retardancy requirements of Federal Aviation Regulation (FAR) standards, making it a reliable choice for aircraft maintenance and repair. At 3 inches wide and 36 yards long per roll, it covers large sealing or wrapping jobs efficiently. HVAC technicians, electricians, and aviation maintenance professionals working with duct assemblies, wire harnesses, or insulation systems will find this tape suited to demanding service environments.

The 398FR tape is primarily used in aircraft maintenance and repair where flame retardant materials are required. It is also applicable in industrial and commercial settings where technicians need a durable, high-adhesion tape for sealing, bundling, or wrapping insulation and ductwork. Its abrasion-resistant backing holds up in environments with mechanical wear or elevated temperatures. The roll format and skip-slit liner make it practical for field use by HVAC, electrical, and maintenance crews on both new installations and repair work.

Key Features

• Flame retardant properties meet FAR flame retardancy requirements for aircraft maintenance and repair
• Acrylic adhesive provides high adhesion to a variety of substrates
• Glass cloth backing delivers abrasion resistance and dimensional stability
• White finish for clean appearance on visible sealing or wrapping applications
• 3 inches wide by 36 yards long per roll for extended coverage
• Skip-slit liner format for easier handling and application in the field

Compatibility

Designed as a flame retardant sealing and wrapping tape for aircraft maintenance, industrial insulation, duct sealing, and wire bundle applications where FAR-compliant flame retardancy is required.

Installation Notes

Application should be performed by qualified maintenance or trade personnel following relevant industry codes and aircraft or equipment manufacturer guidelines. Ensure the substrate surface is clean, dry, and free of oils or contaminants before applying the tape for maximum adhesion. In electrical or HVAC applications, de-energize circuits and shut down equipment before taping wire harnesses or duct assemblies. Do not stretch the tape excessively during application, as this may reduce long-term adhesion performance.

Technical Specifications

• Tape Width: 3 inches
• Tape Length: 36 yards per roll
• Backing Material: Glass cloth
• Adhesive Type: Acrylic
• Color: White
• Flame Retardant Standard: Meets FAR flame retardancy requirements
• Unit of Measure: Roll
• Weight: 1.99 pounds
• UPC: 00021200966750

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010374255