Water absorption rate of UHMW-PE is very low, which is generally less than 0.01% and 1% of PA66. Therefore, drying is not necessary before molding, and products` dimensional changes in humid environments will not occur due to water absorption, also it will not affect the precision and wear resistance and other properties of the products.

Surface adhesive force of UHMW-PE is very weak, its anti-adhesion ability is second to PTEF whose non--adhesion is the best in plastics. Therefore, surfaces of UHMW-PE products are not easy to stick to other materials.

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