With the wide application of double wall heat shrinkable tubes, today we will talk about the application of double wall heat shrinkable tubes in automobiles.

The double wall heat shrinkable pipe is required to seal and protect the automobile harness when the automobile is on the market. The semi-rigid double wall pipe for the automobile harness and the double wall heat shrinkable pipe for the automobile oil pipe are specially sealed and protected for the automobile harness pipe. The advantages of semi-rigid double wall heat shrinkable casing pipe for automotive wiring harness are: insulation, corrosion prevention, wear resistance, low melting point of inner layer, waterproof sealing box, mechanical strain buffer, etc. The advantage of double wall pipe for automobile oil pipe is that it can effectively prevent damage caused by vibration, friction and corrosion, and improve the reliability of the pipeline. The double wall heat shrinkable pipe is divided into two layers, the outer layer is a mixture of low-density high-pressure polyethylene and ethylene vinyl acetate copolymer (EVA), and the inner layer is a very thin hot-melt sealing resin with strong adhesive. When the double wall heat shrinkable pipe is sleeved into the oil pipe surface in a state larger than the diameter of the oil pipe, and heated after positioning, the double wall heat shrinkable pipe will shrink to the predetermined size. Through the hot melt adhesive in the inner layer, the heat shrinkable pipe and the oil pipe are closely connected without any gap in the middle. This oil pipe protection method can greatly improve the service life of the automobile oil pipe.

The use of double wall heat shrinkable pipes in automobiles is a new material produced with the improvement of anti-corrosion requirements of automobile brake oil pipes. It has entered China in the early 1990s and has been widely used in recent years. Especially in the current small vehicles with high-power engines and the increase of ABS and power steering, the layout of brake oil pipes is becoming more and more complex, and the interference between oil pipes and between oil pipes and related parts often occurs. Double wall heat shrinkable pipes provide reliable protection for oil pipes.