Heat shrink tube HellermannTyton 155-42-G — polyolefin, black, 6.7 cm length, 1.8 cm diameter, 1 mm wall

Heat shrink tube HellermannTyton 155-42-G is a black polyolefin sleeve engineered for electrical insulation and mechanical protection. With a length of 6.7 cm, an initial outer diameter of 1.8 cm and a wall thickness of 1 mm, this heat shrink tube provides a compact, durable covering for cable joints, connectors and stress relief points in wiring, electronics repair and industrial assemblies.

Advantages

The polyolefin material offers good dielectric properties and resistance to environmental influences, while the 1 mm wall thickness ensures reliable mechanical protection after shrinking. The product is supplied in a singlepiece format and is compatible with common heat sources and shrink tools, enabling controlled installation. Its black colour provides a neutral visual finish and helps conceal wiring in installations.

Suitable for

• Insulating soldered or crimped cable joints
• Providing strain relief for connector exits and cable transitions
• Protecting wires and small harnesses from moisture and abrasion
• Repair and maintenance work in electronics and electrical installations

Key specifications

• Material: polyolefin
• Colour: black
• Length: 6.7 cm
• Diameter before shrinking: 1.8 cm
• Wall thickness: 1 mm
• Form: tubular heat-shrink sleeve

How to use

Cut the heat shrink tube to the required length and slide it over the cable or joint before connecting. After completing the joint or connection, position the tube centrally over the area to be insulated. Apply controlled heat using a hot air gun, heat shrink oven or suitable heat source, moving evenly to avoid overheating. Heat until the tube has fully conformed and the wall has collapsed to provide a tight fit around the cable or connector, then allow to cool for a secure mechanical and insulating finish.

Usage recommendations

For consistent results, use a regulated heat gun and maintain an appropriate distance to prevent damage to adjacent components. Verify compatibility with operating temperatures and chemical exposure in the application environment. When additional mechanical strain relief is required, combine the tube with adhesive-lined sleeves or appropriate clamps as needed.