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The 3M 7000132186 is a varnished cambric electrical insulating tape designed for use in motor, transformer, and coil insulation 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 per roll and weighs 0.42 pounds. Its flexible construction allows it to conform to irregular surfaces, while the varnish coating provides electrical insulation and moisture resistance. Licensed electricians and motor winding technicians are the primary installers of this product.
Varnished cambric tape is commonly used in electrical motor rewinding, transformer coil wrapping, and general electrical insulation work in both residential and commercial settings. The smooth finish and flexible fabric make it well suited for wrapping conductor bundles, coil ends, and other components where a durable, electrically insulating layer is needed. It is sold by the roll and typically ordered in quantities appropriate for shop or service van stock.
Designed as an OEM-style replacement or shop-stock insulating tape for use in electrical motor rewinding, transformer coil insulation, and similar electrical insulation applications.
Installation of varnished cambric tape is typically performed by licensed electricians or motor winding technicians. Always de-energize and lock out the equipment being serviced before applying tape to any electrical component. Apply the tape with consistent tension to avoid air pockets or gaps in the insulation layer. Follow applicable NEC guidelines for electrical insulation materials and methods.
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