In theory, the inner rubber layer of the high-pressure resin tube is absolutely oil-resistant, and there is basically no corrosion of the rubber layer by the oil, so after the precise withholding, the hose should not leak oil or fall off. In addition, the bending radius of the ultra-high pressure resin pipe is generally larger than that of the traditional high-pressure rubber pipe in the past, which also affects the design and construction. Since the 1990s, a new type of high-pressure hose product, a high-pressure synthetic resin tube, has surfaced. This problem was solved after the application of the endoscopic measurement technology adopted by many manufacturers. This problem is firstly caused by the insufficient accuracy of the current hose crimping equipment, and secondly, the quality of the pipe joints is not up to standard. However, the new problems constantly exposed in the application of ultra-high pressure resin pipes are indeed worthy of research by production units. The product has been widely used in developed countries such as the United States and Japan; and the resinization of high-pressure rubber hoses at home has also become the guiding force for the upgrading of industrial products.

    Secondly, the high-pressure rubber hose is soft and has a small bending radius, and the inner reinforcement layer of the tube body and the rubber are well bonded; while the inner rubber layer and reinforcement layer of the new ultra-high pressure resin tube are basically non-adhesive, even if the manufacturer adopts the adhesive Agents and other materials as compensation; but after all this is a defect. Therefore, pu material was invented as a high-pressure cleaning liner to better withstand high pressure requirements.

Third, due to the high hardness of the material used in the inner rubber layer of the high-pressure resin tube, many application manufacturers have caused a lot of incompatibility when the hose joint is crimped, and the products have a lot of oil leakage and other phenomena.