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The 3M 7100029942 is a thin-wall heat shrink tubing supplied on a 50-foot spool, sold in a minimum quantity of 50 feet. Part of the FP-301 series, this tubing delivers a balanced combination of electrical insulation, physical durability, and chemical resistance suited to demanding industrial and military wiring applications. The black color provides UV resistance and easy visual identification in finished assemblies. Licensed electricians, panel builders, wire harness fabricators, and MRO technicians use this tubing to protect, bundle, and insulate conductors and terminations.
FP-301 thin-wall heat shrink tubing is appropriate for a broad range of applications including wire splicing, strain relief, cable jacketing, and component marking in both industrial control panels and military-spec wiring assemblies. Its thin-wall construction allows for fast heat recovery and a low-profile finished diameter. This product is sold by the foot with a 50-foot minimum order quantity, making it practical for job-site use or shop stock.
Designed as an OEM-style heat shrink solution compatible with standard wire and cable termination applications requiring thin-wall tubing protection and insulation.
Installation is performed by licensed electricians or qualified wire harness technicians. De-energize all circuits before applying heat shrink tubing to any live wiring assembly. Use a calibrated heat gun rather than an open flame to achieve even shrink and avoid scorching the tubing or underlying conductors. Work should conform to applicable NEC requirements for insulation integrity at completed terminations.
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