Cov yam ntxwv tseem ceeb ntawm EPDM yog nws lub peev xwm zoo tshaj plaws los tiv thaiv oxidation, ozone thiab yaig.Vim tias ternary ethylpropylene roj hmab belongs rau polyene (PA66) hydrocarbon tsev neeg, nws muaj cov yam ntxwv zoo vulcanization.Ntawm tag nrho cov roj hmab, EPDM muaj qhov qis tshaj qhov tshwj xeeb.Nws tuaj yeem nqus tau ntau cov fillers thiab roj nrog cov nyhuv me me ntawm cov khoom.Yog li koj tuaj yeem ua cov khoom siv roj hmab uas pheej yig.