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The 3M 7100025163 is a thin-wall heat shrink tubing sold on a 200-foot bulk spool, designed for insulating, bundling, and protecting wire and cable connections in industrial and military-grade electrical applications. Based on the FP-301 series, this tubing measures 1/4 inch in supplied inner diameter and is color-coded blue for circuit identification and organization. It delivers a balanced combination of electrical insulation, physical abrasion resistance, and chemical resistance. Licensed electricians and industrial maintenance technicians use this product during wire harnessing, termination protection, and cable repair work across a broad range of environments.
This tubing is suited for both industrial and military-spec wiring applications where reliable insulation and environmental protection are required. The bulk 200-foot spool format supports high-volume shop work, panel builds, and field service operations where cutting to length on demand reduces waste. The blue color aids in color-coded wiring schemes commonly used in control panels, HVAC low-voltage wiring, and multi-circuit electrical assemblies.
Designed as a general-purpose thin-wall heat shrink sleeve compatible with standard wire and cable termination applications in industrial, commercial, and military electrical assemblies requiring 1/4 inch tubing.
Installation is performed by electricians or wire harness technicians using a calibrated heat gun set to the appropriate shrink temperature for FP-301 material. De-energize all circuits completely before applying heat shrink over any live or active termination. Cut tubing to length before sliding over the conductor or connector, as the tubing cannot be threaded over assembled ends. Apply heat evenly along the length of the tubing to achieve a uniform, void-free shrink.
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