派克80硬度黑色三元乙丙橡胶橡胶EM163-80是乙烯、丙烯以及二烯烃的三元交联共聚物。非常适合用于列举的一些密封工况，比如磷酸酯液压油或者乙二醇基的制动液体系。                                                                                    温度范围：-80°F到250°F （-62°C到121°C）                                                           证书包括：                                                                                                                              NAS 1613 Rev 6                                                                                                               性能：                                                                                                                   耐化学介质：                                                                                                                          热水和300°F的蒸汽  (149°C)                                                                                          乙二醇基制动液（Dot 3 和4），300°F的硅基制动液（Dot 5) ，约为149°C                                                                                                                                     大部分的有机酸和无机酸                                                                                                            清洁剂，钠碱，钾碱                                                                                                  磷酸酯液压油 （HFD-R, Skydrol, Hyjet）                                                          硅油和硅脂                                                                                                           大部分极性溶剂（酒精，酮和酯）                                                                            耐候性、耐臭氧和紫外线                                                                                                 不相容的介质：                                                                                                     矿物油类产品（包括油性、脂类和燃油）