ASTM designation for Chloroprene Rubber (neoprene)

ASTM abbreviation for a terpolymer of ethylene, propylene, and a diene with the residual unsaturated portion of the diene in the side chain.

Thermogravimetric Analysis.  A test procedure used to determine the thermal stability or composition of a material.  Two modes are possible; determining the change of weight of a specimen while changing temperature at a given rate of the change of weight of a specimen with time at a fixed temperature.

The resistance of a material to loss of surface particles due to frictional forces.

A measure of the abrasion resistance of a vulcanized rubber part relative to that of a standard under the same conditions.

A method in which an attempt is made to produce and measure the effects of natural or in-use again in a short period of time. (Example, 72 hours at 100C (212F) in air test tube.)

A chemical used in small amounts to speed up curing or vulcanization of elastomeric compounds.  (Example, tetramethyl thiuram monosulfide, 0.5 parts.)

General term used to describe a class of elastomers based on acrylate esters.  (Examples, Hycar 4021, 4051, 4054.)  See ACM above.

See Acrylate Rubber above, which is the preferred usage.

A chemical CH2CHCN, also known as vinyl cyanide, manufactured from propylene and copolymerized with butadiene to produce butadiene/acrylonitrile elastomers.  (Examples, Hycar 1041,1032.)