CellPack 203789 Heat Shrink Tubing, Non-Adhesive, Brown, 9 mm, 3:1, 10 m

With a 3:1 shrink ratio, this brown heat shrink tubing recovers to one-third of its original diameter, ensuring a tight, secure fit over irregular shapes and connectors. The 9 mm unshrunk diameter shrinks to 3 mm, making it suitable for insulating and protecting wires, splices, and terminations.

Overview

CellPack 203789 is a non-adhesive, flexible polyolefin heat shrink tubing supplied in a 10 m length. It is designed for electrical insulation, mechanical protection, and strain relief in a wide range of applications. The brown colour is ideal for colour-coding and identification.

What stands out

• High 3:1 shrink ratio for tight, conformal coverage
• Non-adhesive lining allows easy repositioning before shrinking
• Flame retardant and self-extinguishing for enhanced safety
• Wide operating temperature range from -55°C to +125°C
• Good resistance to UV, chemicals, and common solvents

Technical details

• Unshrunk diameter: 9 mm
• Recovered diameter: 3 mm
• Shrink ratio: 3:1
• Length: 10 m
• Material: Cross-linked polyolefin
• Colour: Brown
• Adhesive lining: No
• Operating temperature: -55°C to +125°C
• Minimum shrink temperature: +90°C
• Full recovery temperature: +120°C
• Dielectric strength: >20 kV/mm
• Voltage rating: 600 V
• Flame retardant: Yes (self-extinguishing)
• Recovered wall thickness: approx. 1.0 mm

Our verdict

A reliable non-adhesive heat shrink tubing with a high shrink ratio, suitable for demanding insulation and protection tasks where flexibility and flame retardancy are required.