Heat shrink tube is also called heat shrink protection tube. It is used to provide insulation protection for wires, cables and wire terminals. The main material is plastic, which is a special polyolefin material. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot-melt adhesive compound. The outer layer material has the characteristics of insulation and corrosion resistance. The inner layer has the advantages of low melting point, waterproof sealing and high adhesion.

Heat shrink tubes have the characteristics of soft flame retardant, high temperature shrinkage, insulation corrosion resistance, etc., and are generally used for packaging insulation of electronics, electrical appliances and batteries.
In the production operation, it can generally be contracted by using an electric hair dryer, a hot air blower or a heat shrink machine to play a role in protection and insulation.
According to the material, heat shrink tube can be divided into PVC heat-shrinkable tube, 35KV high-voltage busbar protection heat-shrink tube, pet heat shrink tube, rubber-containing double-wall heat shrink tube, radiation cross-linked PE heat shrink tube, 10KV high-voltage busbar protection heat shrink tube, imitation wood grain heat shrink tube.

