How to understand Double wall heat shrinkable tube

Double wall heat shrinkable tube is a type of tubing made from two layers of thermoplastic materials. The inner layer is typically made from a softer material such as polyolefin, while the outer layer is made from a harder material such as polyamide or polyester. The tube is designed to shrink in diameter when exposed to heat, providing a tight and secure fit around the object it is applied to.

The double wall construction provides additional protection and insulation compared to single wall heat shrinkable tube. The inner layer provides insulation and strain relief, while the outer layer provides abrasion and chemical resistance.

Double wall heat shrinkable tubes are available in a range of sizes and colors to suit different applications. The size of the tube is specified by the diameter of the expanded tube, and it can shrink to approximately 50% of its original size when exposed to heat.

When applying the tube, it is important to choose the right size for the object you are covering, as well as ensuring that the heat source is appropriate for the type of material being used. The heat source can be a hot air gun, oven, or a flame.

Overall, double wall heat shrinkable tube provides a more robust and durable solution for applications that require additional protection and insulation, such as in the automotive, aerospace, and industrial sectors.