Double wall heat shrinkable tube

Release date：2021-07-28 author：admin Click:

Double wall heat shrinkable tube is a semi-flexible heat-shrinkable tube with hot melt adhesive attached to the inner layer. The outer layer is made of high-quality, soft cross-linked polyolefin material, and the inner wall is coated with a layer of hot melt adhesive through a co-extrusion process, so it is also called a glued heat shrinkable tube or a glued heat shrinkable tube.

The main double wall heat shrinkable tube is a special-purpose casing that can be waterproof and moisture-proof. Judging from its production process and structure, it has a double-layer structure, and it is made by composite processing of inner and outer double layers. It is made of flame-retardant polyolefin and adhesive layer co-extruded materials and special production processes. The outer layer is made of high-quality polyolefin polymerization, which has strong wear resistance, insulation, corrosion resistance and other functions; the inner layer is hot-melt adhesive, has a low melting point, and has strong adhesion. When heated, the inner wall melts and follows the outer wall. Shrink and fill the pores or gaps. After cooling, the wall thickness of the double-walled tube is uniform and solid. Excellent sealing and mechanical cushioning performance.

Double wall heat shrinkable tube is mainly used for the butt protection of waterproof cables of electronic equipment, sealing and waterproofing of multi-strand wiring harnesses (such as household appliances, wiring harnesses, automobile wiring harnesses, etc.), sealing and waterproofing of wire and cable branches, corrosion-resistant metal pipes, and wire and cable Repair, wiring of water pumps and submersible pumps and other occasions where waterproofing is required.

The colors of double wall heat shrinkable tubes are red, orange, yellow, blue, green, white, and black. It can be used for a long time in the temperature environment of -55℃～125℃. It has a low shrinkage temperature. Generally, it can shrink when heated to 80°C. The minimum temperature to achieve full shrinkage is 120°C. The shrinking speed is extremely fast, high shrinkage, conventional 3 times 4 times shrinkage ratio. There are many specifications of double wall heat shrinkable tube. If necessary, you can contact us online.