Ethylene Acrylic, widely known as Vamac® is favored in applications where chemical and heat resistance are desired. Vamac®, an ethylene and methyl acrylate copolymer, has properties similar to polyacrylate. It exhibits an extended low temperature limit and better mechanics than that of polyacrylate.
Both o-rings and gaskets can be made from Ethylene Acrylic (VAMAC®) materials.
Names: VAMAC®, AEM, Ethylene Acrylic
|ASTM D1418 Designation||AEM|
|ASTM D2000/SAE J200 Type, Class||EE, EF, EG, EA|
|Hardness (Shore A)||50-90|
|Standard Min Temp.||-13°F (-25°C)|
|Max Temp.||338°F (197°C)|
Engine coolant mixtures (glycols)
Dilute acids and alkalis
Ozone and sunlight aging resistant
Gasoline, ketones, brake fluids, and phosphate esters
Disclaimer: These are general guidelines only. All materials should be tested in your application.