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The BSC PREFERRED T9650691PK is a high-temperature woven glass cloth tape designed for electrical insulation and splicing in demanding thermal environments. The tape uses a silicone, pressure-sensitive adhesive with thermosetting properties, meaning bond strength increases after application when exposed to elevated heat. Rated for continuous operation from 32 to 392 degrees F, this tape is built for furnace and oven control wiring, motor leads, and switch insulation. It carries a dielectric rating of 3,000 volts, making it suitable for high-voltage insulation tasks in HVAC, industrial, and commercial electrical applications. Licensed electricians and HVAC technicians are the primary installers.
This tape is well suited for residential and commercial applications where standard vinyl or rubber tapes would degrade under sustained heat. Typical use cases include insulating and splicing motor leads inside furnace cabinets, securing and protecting wiring near oven controls, and bundling switch wiring in environments where ambient temperatures exceed the limits of conventional electrical tape. Its conformable construction allows it to wrap tightly around irregular wire bundles and terminal connections without gaps or lifting.
Designed for use in high-temperature electrical insulation applications including furnace and oven controls, motor leads, and switching circuits where conventional electrical tape is not rated for the operating environment.
Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with applicable NEC requirements. De-energize all circuits and allow equipment to cool before applying or removing tape near live wiring or heated components. Ensure wire surfaces are clean and dry before wrapping to maximize adhesive contact. Do not exceed the rated voltage or temperature limits of the tape in any application.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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