COMPAQ International is a leading provider of innovative cable management solutions, and heat shrink tubing stands as a testament to that commitment. These versatile tubes offer a simple yet ingenious way to secure and insulate cables, transforming from loose sleeves to snug fits with the application of heat. But what gives them this remarkable ability to "remember" their smaller size?

The Secret Lies in Polymer Magic

The key lies in the unique properties of cross-linked polymers, the special thermoplastic used in most heat shrink tubing. During manufacturing, the polymer chains undergo cross-linking—via peroxide, irradiation, or chemical reactions—creating molecular “memory points.”

How It Works

• Molecular Memory: Imagine the polymer chains as tiny springs. In their relaxed pre-shrunk state, they're loose and stretched out.
• Heat Triggers Shrinkage: When heated, the chains vibrate and try to move, but the cross-links anchor them—forcing the chains to coil tighter and shrink the tubing.
• Permanent Reset: Once cooled, the chains lock into their new, compact shape. Unless reheated to a high temperature, the tubing maintains this smaller form.

Beyond the Basics

• Shrink Ratios: These tubes come in various shrink ratios—from 2:1 to 6:1—indicating how much they contract upon heating.
• Versatile Options: Some include features like adhesive linings for sealing, flame retardancy, or non-tracking capabilities.

COMPAQ International offers a comprehensive range of high-quality heat shrink tubing solutions to meet diverse application needs—from insulation and environmental protection to cable management. Next time you witness heat-shrink magic, you'll know it’s the clever cross-linked polymers doing the memory trick.