Ethylene Acrylic Copolymer
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
Compound Info | |
ASTM D1418 Designation | AEM |
ASTM D2000/SAE J200 Type, Class | EE, EF, EG, EA |
Hardness (Shore A) | 50-90 |
Color | black |
Thermal Properties | |
Standard Min Temp. | -13°F (-25°C) |
Max Temp. | 338°F (197°C) |


Chemical Resistance
Water
Engine coolant mixtures (glycols)
Dilute acids and alkalis
Ozone and sunlight aging resistant

NOT Compatible
Concentrated acids
Aromatic hydrocarbons
Gasoline, ketones, brake fluids, and phosphate esters
Disclaimer: These are general guidelines only. All materials should be tested in your application.