Ethylene / Acrylic (Vamac ®)

Vamac ® (Ethylene Acrylic Elastomer)

Trade Name(s):
Vamac®DuPont Dow Elastomers
ASTM D1418 Designation:AEM
Standard Colour:Black
Description:

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 Use(s):

DuPontTM Vamac® and ethylene acrylate (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.

Temperature Range:
Standard Compound:-25°C (-13°F) to 170°C (+338°F) – Dry Heat Only
Hardness (Shore A):50 to 70
Features:

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.

Limitations:

Vamac ® is not recommended for exposure to concentrated acids, aromatic hydrocarbons, gasoline, ketones, brake fluids and phosphate esters.

Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals (UK) Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.

ES REF
Colour
Temp Range
Shore
Notes
Data Sheet
AEM70BLACK-29°C to +150°C70Copolymer 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.

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