LDPE (Low Density Polyethylene) : Offers such advantage as tear strength and high chemical resistance. It is also waterproof.

(低密度聚乙烯)：具有以下优良性质：高撕裂强度，高耐化学性，防水性。

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It has a better flex cracking resistance than those of natural rubber but a lower tear strength and a higher dynamic modulus.

它比天然橡胶具有较好的抗挠曲开裂性能，但撕裂强度较低，动态模量较高。

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It is mainly used as rubber reinforcement and filler, to improve their elongation, tear strength and resistance to abrasion.

主要用作橡胶制品的补强剂和填充剂，能明显改善橡胶制品的抗拉强度、抗撕裂性和耐磨性。

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Optim insulation is a hybrid material that combines the biostability and flexibility of high-performance silicone rubber with the strength, tear resistance and abrasion resistance of polyurethane, to provide increased durability and flexibility.

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