Heat shrink tubing CellPack CR 38.1/19.1 1 1/2" thin-wall, mixed lengths (8-7204)

CellPack CR 38.1/19.1 thin-wall heat shrink tubing (1 1/2") mixed lengths, model 8-7204, is designed to provide reliable electrical insulation and mechanical protection for cables, wire joints and connectors. The tubing shrinks to a smaller diameter when heated, forming a close-fitting sleeve that improves strain relief, reduces exposure to abrasion and offers limited protection against moisture. This mixed-length pack contains pieces suitable for a range of repair and installation tasks in electrical and electronic applications.

Advantages

The thin-wall construction ensures a snug fit with minimal added bulk while allowing rapid heat transfer for efficient shrinking. The material delivers electrical insulation and abrasion resistance without significantly increasing cable diameter. Mixed lengths in the pack offer flexibility for different cable sizes and joint types, reducing waste and the need to cut down longer pieces. The tubing is easy to apply with standard heat sources and provides a neat, professional finish.

Suitable for

• Insulating and protecting single conductors and small cable assemblies
• Repairing damaged cable sheaths and covering soldered or crimped joints
• Providing strain relief on plugs, connectors and terminations
• Bundling and identifying wiring runs in control panels or vehicle harnesses

Key specifications

• Material: thin-wall heat-shrink polymer suitable for electrical insulation
• Pre-shrink outer diameter: approximately 38.1 mm; shrunk inner diameter: approximately 19.1 mm
• Size designation: 1 1/2" nominal size
• Pack content: mixed lengths suitable for various repair and installation needs
• Properties: electrical insulation, abrasion resistance, limited moisture protection, good flexibility

How to use

Select a piece of tubing from the mixed pack that covers the splice or area to be insulated with a small overlap on each side. Slide the tubing over the joint or conductor before soldering when possible, then apply heat evenly using a heat gun, hot air tool, or controlled flame at a safe distance until the tubing uniformly conforms to the underlying shape. Allow the tubing to cool and verify a secure fit. For crimped connections, center the tubing over the termination and heat until fully shrunk.

Usage recommendations

Use a regulated heat gun for controlled, uniform shrinking and to avoid overheating adjacent components. For environments exposed to significant moisture or chemicals, consider selecting heat shrink products with specialized adhesive lining or higher chemical resistance. Store the tubing in a cool, dry place away from direct sunlight to preserve material properties.