A copolymer of ethylene and methyl acrylate, with a small amount of a third monomer added to provide a cure to active groups in the polymer chain. Vamac® exhibits properties similar to those of polyacrylate, but with an extended low temperature limit and better mechanicals.
Key Uses: AEM products are a comprehensive family of heat and fluid resistant elastomers for flexible applications ranging from hoses, dampers and boots to seals and gaskets for automotive applications, such as automatic transmissions and power steering systems.
Ideal for automotive sealing uses, Vamac ® features excellent heat resistance, outstanding resistance to ozone and sunlight aging, moderate resistance to swelling in oils, and very low permeability to gases.
With a maximum reinforced tensile strength of 2,500 psi, Vamac ®’s mechanical properties of adhesion to metals, tear resistance, flex life, abrasion resistance and compression set resistance are all rated as “good.” Resistance to water, engine coolant mixtures (glycols), dilute acids and alkalis is also good.
General Specifications (actual specification may vary)
ASTM D1418 Designation
- AEM
Standard Colour
- Black
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Please note – Vamac ® is not recommended for exposure to concentrated acids, aromatic hydrocarbons, gasoline, ketones, brake fluids and phosphate esters.