Heat-Shrink Tubing Radpol RCH1 9.5/4.8×1 mm black, model WRJCC9500480010030C1

Radpol RCH1 heat-shrink tubing in black with a nominal diameter of 9.5 mm that shrinks to 4.8 mm and has a 1 mm wall thickness is intended for electrical insulation, mechanical protection and cable repair. The tubing provides a durable sleeve for wiring joints, connectors and harnesses, offering improved abrasion and moisture resistance for installations and maintenance tasks. It is made to be compatible with standard heat sources used for shrinking and is suitable for use in a variety of indoor and sheltered outdoor environments.

Advantages

This heat-shrink tubing delivers reliable insulation and reinforcement for exposed cables and connectors while maintaining a compact finished diameter after shrinkage. Its 1 mm wall thickness provides mechanical protection against abrasion and handling, and the material composition gives good electrical insulating properties and resistance to moisture. The uniform shrink ratio ensures predictable fitting over splices and irregular shapes, and the black colour offers discreet appearance and UV resistance suitable for general wiring applications.

Suitable for

• Insulating and protecting cable splices and terminals
• Repairing damaged insulation on wiring harnesses
• Strain relief for connector joints and soldered connections
• Bundling and identifying cable runs in electrical installations

Key specifications

• Nominal (before shrink) outer diameter: 9.5 mm
• Recovered (after shrink) outer diameter: 4.8 mm
• Nominal wall thickness after shrink: 1 mm
• Colour: black
• Material type: cross-linked polyolefin heat-shrink tubing (RCH1 series)
• Shrink ratio: designed to recover reliably to the specified recovered diameter

How to use

Select a tubing length that covers the area to be insulated plus an overlap on each side. Slide the tube over the cable or joint before making the final connection when possible, or use an appropriate splice procedure and then position the tubing over the finished splice. Apply uniform heat using a heat gun or other suitable heat source at a safe distance to avoid overheating; move the heat source along the tubing until it shrinks uniformly to the recovered diameter. Allow the tubing to cool and verify a snug fit and full coverage of the intended area.

Usage recommendations

Use appropriate personal protective equipment and controlled heat application. For best results, apply heat evenly and avoid open flames; verify compatibility with the operating temperature range of the installation and allow sufficient overlap on each cable side for secure insulation. Store tubing in a dry, cool place away from direct sunlight to preserve material properties.