Profile: Heat Shrink Tubing is a distributor of Thermafix® heat shrinkable tubing and adhesive-lined Thermafix® Plus heat shrinkable tubing, along with other wiring accessory products. We have a wide range of colors and package sizes available in all different types of heat shrinkable tubing. Heat shrink tubing and custom heat shrink products provide a protective covering for wires and cables. Available in various colors, lengths, diameter, and shrink ratio, buying heat shrinkable tubing can not only protect delicate wirings. Heat shrink tubing is a durable thermoplastic tubing that is designed to shrink in size when placed around wires or cables and then heated. As an alternative solution to taping or molding wires togethers, the heat shrink tubing works as an organizer or labeler for clusters of wires. It also acts as an insulator and added layer of protection from external elements.