Acrylic rubber (ACM\AEM) is a polymer of ethyl acrylate or butyl acrylate. It is characterized by good heat resistance and oil resistance, and stable performance in lubricating oils containing sulfur, phosphorus, and chlorine additives. At the same time, it is resistant to aging, oxygen and ozone, ultraviolet rays, and air tightness. The disadvantages are poor cold resistance, water, steam, organic and inorganic acids and alkalis. Swelling is serious in water-soluble solutions such as methanol, ethylene glycol, ketone ester, etc. At the same time, it has poor elasticity and wear resistance, poor electrical insulation, and poor processing performance. Operating temperature range: about -25℃~+150℃. It can be used to manufacture oil-resistant, heat-resistant, and aging-resistant products, such as seals, hoses, and chemical linings.