3M 7100025829 Heat Shrink Tubing 3/8 Inch Black 100 Ft

Product Description

The 3M 7100025829 is a modified polychloroprene heat shrink tubing designed for applications that demand a tough, highly flexible protective covering. When heated above 275 degrees F (135 degrees C), this NST tubing rapidly shrinks to a skintight fit over conductors, connections, or components. It is rated for continuous operation between -94 degrees F and 250 degrees F, making it suitable for both extreme cold and elevated heat environments. The tubing delivers superior cut-through and abrasion resistance and holds up well against common fluids, solvents, and oils. It accepts hot-stamp and print-wheel marking methods for labeling and identification in the field.

This tubing is used across electrical, HVAC, and industrial applications where wire bundling, insulation, and mechanical protection are required. The black color and flexible construction make it a practical choice for routing through tight conduit runs or around irregular components. Electricians and HVAC technicians typically use this tubing during panel work, harness assembly, and service repairs on both residential and light commercial equipment. It ships in a spool format designed for high-volume installations.

Key Features

• Shrinks to a skintight fit when heated above 275 degrees F
• Continuous operating range from -94 degrees F to 250 degrees F
• Superior cut-through and abrasion resistance for demanding environments
• Resistant to common fluids, solvents, and oils
• Maintains flexibility at low temperatures without cracking or stiffening
• Compatible with hot-stamp and print-wheel marking methods for field labeling

Compatibility

Designed as a general-purpose heat shrink tubing solution suitable for wire insulation, bundling, and component protection across electrical and HVAC applications requiring a 3/8-inch tubing size.

Installation Notes

Installation is typically performed by licensed electricians or HVAC technicians. De-energize all circuits before applying heat shrink tubing to live wiring or connections. Use an appropriate heat gun to apply uniform heat and achieve a consistent shrink — avoid open flame sources, which can damage the tubing or surrounding materials. Follow applicable NEC guidelines for insulation and conductor protection requirements.