How to buy high quality double wall heat shrink tubing
The double wall heat shrink tubing with glue has this product name because the double wall heat shrink tubing has a special feature compared to the ordinary single-wall heat shrink tubing. The outer layer is made of cross-linked polyolefin material. The anti-wear protective layer, the inner layer is a layer of glue formed by hot melt adhesive to seal and waterproof. Then how to buy high quality double wall heat shrink tubing?
To know how to buy high quality double wall heat shrink tubing, you must first understand the product with a double-walled tube. At present, there are mainly three types of double wall pipe coating methods on the domestic market: 1. Co-extruded type, the polyolefin layer and the hot-melt adhesive layer are simultaneously extruded from the production equipment during production; 2. The direct coating type, the hot melt adhesive is heated and melted, and then sprayed on the heat-shrinkable tube. Third, the spiral coating type, different from the direct coating type is a spiral coating method. Our double wall heat shrink tubing is the first one, which makes the hot-melt adhesive more uniform.
So how to buy high quality double wall heat shrink tubing? Softness, surface smoothness, partial wall rate, rubber layer quality, etc. should be considered comprehensively before purchasing a double-wall heat-shrinkable tube with glue. And you must ask the manufacturer for a sample trial to investigate the speed, shrinkage, and internal hot melt of the double wall tube when it shrinks.
The above is how to buy high quality double wall heat shrink tubing. If you have any questions or supplements, please call us to communicate.