3M 7100025894 Heat Shrink Tubing Nst Black 50 Ft

Product Description

The 3M 7100025894 is a modified polychloroprene heat shrink tubing sold in a 50-foot spool under the NST product line. It provides a tough, highly flexible covering for wire harnesses, cable bundles, and component insulation across electrical and mechanical applications. When heated above 135 degrees C (275 degrees F), the tubing rapidly shrinks to a skintight fit. It is rated for continuous operation from -70 degrees C (-94 degrees F) to 121 degrees C (250 degrees F), making it suitable for environments that cycle between extreme cold and moderate heat. Licensed electricians, HVAC technicians, and industrial maintenance professionals are the primary installers.

This tubing is recommended wherever applications require superior cut-through resistance, abrasion resistance, and chemical compatibility. It holds up against common fluids and solvents, and provides excellent resistance to oils — useful in engine compartments, industrial equipment, and outdoor wiring runs where fluid exposure is routine. The tubing maintains flexibility at low temperatures, avoiding the brittleness that affects many competing materials in cold-weather installs. Hot-stamp and print-wheel marking methods are compatible with the tubing surface, supporting identification and labeling requirements common in panel wiring and harness assembly.

Key Features

• Modified polychloroprene construction delivers superior cut-through and abrasion resistance
• Shrinks to a skintight fit when heated above 135 degrees C (275 degrees F)
• Continuous operating range of -70 degrees C (-94 degrees F) to 121 degrees C (250 degrees F)
• Unaffected by common fluids and solvents; excellent oil resistance
• Maintains flexibility at low temperatures — no cold-weather brittleness
• Compatible with hot-stamp and print-wheel marking methods for circuit identification

Compatibility

Designed as a general-purpose heat shrink sleeving solution for electrical insulation, wire bundling, and mechanical protection in residential, commercial, and industrial installations.

Installation Notes

Installation is typically performed by licensed electricians or qualified maintenance technicians. De-energize all circuits and disconnect power before applying tubing to any live-wire assembly. Use a heat gun at a controlled, even distance to apply uniform shrinkage — avoid open flame, which can scorch the tubing or damage nearby components. Follow applicable NEC guidelines for insulation ratings and sleeving requirements in your installation environment.

Technical Specifications

• Material: Modified Polychloroprene
• Color: Black
• Length: 50 feet per spool
• Shrink Temperature: 135 degrees C (275 degrees F) minimum
• Continuous Operating Range: -70 degrees C (-94 degrees F) to 121 degrees C (250 degrees F)
• Weight: 0.13 pounds
• UPC: 10054007586040

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100025894