Heat shrink tubing Cabletech LEC-NAR0242.1 1.5 mm × 1 m black

Cabletech heat shrink tubing LEC-NAR0242.1 is a 1.5 mm diameter, 1 m long black sleeve designed to insulate and protect electrical connections. The tubing provides mechanical protection, strain relief and improved resistance to moisture for wire joints, terminals and splices. It is made for general electrical maintenance, automotive wiring repairs and DIY electronics where a compact, low-profile insulating sleeve is required.

Advantages

The heat shrink tubing offers a tight, conforming fit after heat application, creating secure insulation around conductors and solder joints. Its small diameter and flexible material make it easy to route in tight spaces and apply to individual wires or bundled conductors. The black color gives a neutral appearance suitable for visible wiring runs while helping to reduce surface light reflection. The tubing also provides additional mechanical support at connection points, reducing the likelihood of abrasion or stress-related failures.

Suitable for

• Insulating single-conductor wires and soldered joints in small electronics
• Repairing and protecting automotive wiring and harness splices
• Providing strain relief where cables enter connectors or terminals
• General household electrical maintenance and hobby projects

Key specifications

• Nominal diameter before shrink: 1.5 mm
• Length: 1 meter
• Color: black
• Material: heat-shrinkable polymer (flexible, insulation-grade)
• Shrink characteristic: reduced diameter after heating to form a snug fit

How to use

Slide an appropriately sized piece of tubing over the wire or joint before making the connection if possible; otherwise, position it over the splice after assembly. Apply heat evenly using a heat gun, lighter or soldering iron with a heat-shrink attachment, keeping the heat source moving to avoid overheating. Heat until the tubing contracts uniformly and conforms tightly to the underlying conductor or connector, then allow it to cool and set. Trim excess length as needed for a neat installation.

Usage recommendations

Choose a tubing diameter that provides adequate shrink ratio for the target conductor; ensure the heat source reaches a temperature appropriate for the tubing material without charring surrounding insulation. For automotive or moisture-prone environments, verify that the installed tubing fully covers the exposed area and consider combining with adhesive-lined heat shrink or additional sealing methods if higher moisture protection is required.