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The 3M 7100036089 is a thin-wall heat shrink tubing designed for environmental protection and electrical insulation in wire and cable applications. Sold as the EPS-300 series, this tubing provides a durable sleeve that seals out moisture, contaminants, and abrasion from exposed conductors and connections. Each piece measures 6 inches in length with a 1-inch diameter. The pack contains 10 pieces. Licensed electricians and low-voltage technicians use this tubing during termination, splicing, and repair work where a clean, insulated finish is required.
This tubing is suited for residential and commercial electrical installations, panel work, and field splicing where wire ends or terminal connections need protected coverage. The EPS-300 series is a common choice in conduit runs, control wiring, and service entrance repairs where a compact, recoverable sleeve is needed. Its black color helps identify treated segments and resists UV degradation in exposed routing paths.
Designed as an OEM-style replacement and general-use heat shrink sleeve for 1-inch diameter wire bundles, terminal connections, and cable splices in low-voltage and line-voltage electrical applications.
Installation is performed by licensed electricians or qualified low-voltage technicians following NEC guidelines for insulation and termination work. De-energize all circuits before applying heat shrink tubing to any conductor or terminal. Use a calibrated heat gun at the manufacturer-recommended temperature range to achieve full recovery without scorching the tubing or adjacent insulation. Avoid open-flame sources, which can cause uneven shrinkage or damage to surrounding wire jackets.
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