3M 7000132813 Varnished Cambric Tape 1 in X 36 Yd

Product Description

The 3M 7000132813 is a varnished cambric electrical insulating tape designed for use in motor, transformer, and coil winding applications. It is constructed from straight-cut woven cotton cambric fabric that is oil primed and coated with a high-grade yellow electrical insulating varnish. The tape measures 1 inch wide by 36 yards long and weighs 0.5 pounds per roll. It provides flexible, moisture-resistant insulation with a smooth finish, making it well suited for layering over coil windings, slot liners, and phase insulation in electrical apparatus. Licensed electricians and motor rewinding technicians are the primary installers of this product.

Varnished cambric tape is commonly used in the repair and manufacture of electric motors, transformers, and generators. It serves as a phase insulator, slot liner, and coil wrap in both residential and commercial electrical equipment. The 1-inch width is a standard sizing for hand-applied winding work and is sold in 36-yard rolls to support full winding jobs without frequent roll changes.

Key Features

• Straight-cut woven cotton cambric fabric construction for consistent lay and flexibility
• Oil primed and varnish coated for high-grade electrical insulation performance
• Moisture resistant with a smooth finish suitable for layered winding applications
• 1 inch width x 36 yard length per roll for extended coverage
• Yellow varnish finish for visual identification during assembly and inspection

Compatibility

Designed as an OEM-style insulating tape for use in electric motor rewinding, transformer coil winding, and general electrical apparatus insulation applications.

Installation Notes

This tape is typically applied by licensed electricians or motor rewinding technicians working on de-energized equipment. Always de-energize, lock out, and tag out the equipment before beginning any winding or insulation work in accordance with NFPA 70E safe work practices. Apply the tape with consistent tension to avoid air pockets between layers. Do not stretch the fabric beyond its natural lay, as distortion may reduce insulation integrity.

Technical Specifications

• Width: 1 inch
• Length: 36 yards
• Weight: 0.5 pounds
• Unit of Measure: Roll
• Fabric Base: Woven cotton cambric
• Coating: Yellow electrical insulating varnish
• UPC: 00054007048336

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000132813