3M 7100003056 Glass Cloth Tape 398FR White 2in X 36yd

Product Description

The 3M 7100003056 is a flame-retardant glass cloth tape sold under the 3M 398FR designation. It is designed for wrapping, bundling, and securing applications where heat resistance and flame retardancy are required. The white woven glass cloth backing provides dimensional stability and conformability, making it well suited for use in electrical insulation, motor coil wrapping, transformer insulation, and wire harnessing in HVAC and electrical systems. Each roll measures 2 inches wide by 36 yards long and weighs approximately 1.45 pounds. Licensed electricians and HVAC technicians are the primary installers of this product in both residential and light commercial environments.

This tape is commonly applied in applications that require a durable, heat-tolerant tape with flame-retardant properties. Typical use cases include securing and insulating wire bundles, wrapping motor leads, reinforcing duct insulation seams, and providing electrical insulation in transformers and coil assemblies. It is sold by the roll and minimum order quantity is 24 rolls per case, making it appropriate for shops, service fleets, and distributors maintaining regular inventory of flame-retardant tape supplies.

Key Features

• Flame-retardant glass cloth backing suitable for high-heat electrical and HVAC applications
• White color for clean, visible identification of wrapped components
• 2-inch width provides broad coverage for motor coils, transformer windings, and wire bundles
• 36-yard roll length reduces roll changes during large jobs
• Woven glass cloth construction resists tearing and maintains stability under thermal stress

Compatibility

Designed as an OEM-style flame-retardant glass cloth tape for use in electrical insulation, HVAC equipment, and motor winding applications requiring a flame-retardant woven tape.

Installation Notes

Application is typically performed by licensed electricians or HVAC technicians working on motor, transformer, or wire harness assemblies. Always power down and lock out the equipment before applying tape to any energized component. Ensure surfaces are clean and dry before application to achieve proper adhesion. Follow all applicable NEC guidelines for insulation materials used in electrical assemblies.

Technical Specifications

• Width: 2 inches
• Length: 36 yards per roll
• Weight: 1.45 pounds
• Color: White
• Unit of Measure: Roll
• Minimum Order Quantity: 24 rolls
• UPC: 00021200966729

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100003056