3M 7000148866 Heat Shrink Tubing 1/8 in 6 in Black 10 Pack

Product Description

The 3M 7000148866 is a semi-rigid, multiple-wall heat shrink tubing designed for wire splicing, termination protection, and environmental sealing in electrical and electronic applications. Built from co-extruded polyolefin with selective cross-linking, it features a 2.5:1 shrink ratio and an integral meltable inner wall that flows on activation to seal out moisture, contaminants, and mechanical stress. Each piece measures 6 inches in length with a 1/8 inch recovered diameter. Licensed electricians, electronics technicians, and field service professionals use this tubing where a single-wall product does not provide adequate sealing or strain relief.

This tubing is suited for low-voltage wire bundles, connector backshells, terminal splices, and cable entry points in residential, commercial, and industrial electrical work. The meltable adhesive inner wall creates a watertight bond around irregular geometries, making it useful for outdoor wiring runs, marine environments, and any application where moisture ingress is a concern. Each pack contains 10 pieces, each 6 inches long, providing a consistent supply for repetitive termination work on a single job.

Key Features

• 2.5:1 shrink ratio allows fitment over a range of conductor and connector sizes before final recovery
• Co-extruded polyolefin construction with selective cross-linking for dimensional stability after shrink
• Meltable adhesive inner wall flows on heat activation to seal against moisture and contaminants
• Semi-rigid recovered wall resists abrasion and provides mechanical protection at termination points
• Pre-cut 6 inch lengths reduce handling time on repetitive splice and termination tasks
• Black color aids in UV resistance and blends with standard wire jacket colors

Compatibility

Designed as an OEM-style replacement and general-use heat shrink solution for electrical splices, connector terminations, and cable protection applications requiring a dual-wall adhesive-lined tubing in the 1/8 inch size range.

Installation Notes

Installation is performed by licensed electricians or qualified technicians following applicable NEC guidelines. Power down and de-energize all circuits before applying tubing over conductors or splices. Apply heat evenly along the length of the tubing using a heat gun, working from the center outward to prevent air pockets and ensure full adhesive flow. Do not use an open flame, as uncontrolled heat can damage the tubing or adjacent insulation.

Technical Specifications

• Shrink Ratio: 2.5:1
• Recovered Inner Diameter: 1/8 inch
• Length per Piece: 6 inches
• Wall Construction: Multiple-wall semi-rigid polyolefin with meltable inner wall
• Color: Black
• Pieces per Pack: 10
• Packs per Case: 10
• Unit of Measure: Pack
• Minimum Order Quantity: 10
• Weight: 0.03 pounds
• UPC: 00051128600948

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000148866