Heat-Shrink Tube CellPack CR 19.1/9.5 — thin-wall, blue, MPN 427572

Thin-wall heat-shrink tube CellPack CR 19.1/9.5 in blue is a flexible polyolefin sleeve designed to provide electrical insulation, mechanical protection and strain relief for wires and cable joints. The CR 19.1/9.5 designation refers to the nominal expanded and recovered diameters, making this tubing suitable for a range of conductor sizes and for repairing insulation, bundling conductors and marking harnesses in electronics, automotive and general electrical installations.

Advantages

This thin-wall heat-shrink tube offers uniform recovery and consistent wall thickness after shrinking, ensuring reliable insulation and a neat appearance. Its flexible polyolefin construction provides resistance to abrasion and common environmental factors encountered in wiring applications. The blue color enables visual identification and color-coding of wires or cable groups, simplifying installation and maintenance tasks.

Suitable for

• Insulating and repairing damaged wire insulation in electronic devices
• Bundling and organizing multiple conductors in harnesses
• Marking and color-coding wiring in automotive and industrial installations
• Providing strain relief at solder joints and connector interfaces

Key specifications

• Material: thin-wall polyolefin
• Color: blue
• Nominal expanded diameter: 19.1 mm
• Nominal recovered diameter: 9.5 mm
• Function: electrical insulation, mechanical protection, strain relief
• Form: tubular sleeve, single wall construction

How to use

Select a length of tubing that covers the exposed area and extends slightly onto the intact insulation. Slide the tube over the wire or joint, then apply heat evenly using a heat gun, hot air tool or appropriate heat source until the tubing contracts and conforms to the shape beneath. Allow the tubing to cool and verify complete recovery and secure fit; ensure no excess deformation of nearby components during heating.

Usage recommendations

For reliable results, use a temperature-controlled heat gun and apply heat gradually to avoid overheating adjacent components. Confirm compatibility with conductor insulation materials and operating temperature ranges before long-term installation. Use the blue tubing for visual identification and plan for adequate overlap on each side of a repaired section to maintain mechanical strength and electrical insulation.