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Ethylene acrylic rubber is a mixed polymer of ethylene and methyl acrylate, with the addition of a small amount of a carboxylate crosslinking monomer. The combination of ethylene and methyl acrylate gives the rubber its excellent thermal stability, while its resistance to media such as oils and fats is due to the polarity of the methyl acrylate commoner. A higher acrylate content improves resistance to oils, but reduces low-temperature flexibility.
AEM Main Properties