Acrylic Rubber Properties

The main repeat units are ethyl and butyl acrylate or a blend of both.

Acrylic rubber properties.

Today s engine and transmission requirements would be difficult to meet cost effectively without acm. The outstanding property of this rubber is its resistance to hot oil and to oxidation. Polyacrylic elastomers also called acm rubbers are synthetic rubbers composed of acrylic monomers. Acrylic rubber is a type of synthetic rubber containing acrylonitrile.

Rubber material selection guide acm or polyacrylate acrylic rubber abbreviation acm astm d 2000 classification df dh chemical definition copolymer ethyl butyl acrylate 12 0000 series physical mechanical properties durometer or hardness range 40 90 shore a tensile strength range 500 2 500 psi elongation range 100 450. These polymers are usually prepared by emulsion or suspension polymerization. Vamac ethylene acrylic elastomer is used across the globe for automotive powertrains and other applications that require heat and chemical resistance as well as those that demand specific rubber like qualities. Unlike butadiene based rubbers sbs nbr acrylic elastomers have good resistance to mineral oils oxygen ozone ultraviolet radiation and withstand higher temperatures.

Ethylene acrylic rubber is a ethylene methyl acrylate polymer with a small amount of monomer containing carboxylic acid groups. It is also resistant to ozone and weathering and in these respects it is much superior to nitrile rubber. Both have similar mechanical properties however aem s can withand a wider temperature range than acm s and hydrogenated nitriles hnbr. Acrylic rubber acm is a specialty synthetic rubber used when resistance to petroleum fuel oil oxygen ozone and heat are required.

Low temperature applications are limited to 10 c. These properties especially the low oil swell allow rubber part makers better lifetime expectations. Acrylic rubber acm noxtite pa. Vamac also helps provide longevity in powertrain applications and air management systems and delivers long term durability in other environments with diverse chemical exposure.

The chemical name of this rubber is alkyl acrylate copolymer. The key properties of polyacrylic acm are its resistance to hot hydraulic oil and oxidation. Acm polyacrylic rubber. Acm polyacrylic rubber properties.

Water resistance is poor as is its resistance to acids and alkalis. Aem is resistant to heat chemicals ozone and oil and offers good resistance to lubricating oils and greases even those containing aggressive additives and to power steering and transmission fluids.