Abrasion
Surface wear caused by relative motion between contacting objects
Abrasion Resistance
The ability of a rubber compound to resist surface wearing by mechanical action
ABS
Acrylonitrile-butadiene-styrene
Accelerator
A chemical compound that speeds up the vulcanization of natural or synthetic rubbers
Adhering Flash
Extremely thin flash (usually less than .002' thick) that adheres to the finished part during molding or deflashing processes
Age Protection - Active
the use of a chemical additive in a rubber compound which is preferentially attached by oxygen or ozone thereby sacrificially protecting the rubber
Age Protection - Passive
The use of a chemical additive in a rubber that will migrate to the surface of a rubber part to form a protective physical barrier
Aging
The change in physical and chemical characteristics of an elastomer that has been exposed to a particular environment over time
Alloy
A composite material produced by blending polymers or copolymers with other polymers under selected conditions to achieve greater physical properties
Ambient Temperature
The temperature of the environment surrounding a particular object
Aniline Point
The lowest temperature at which equal parts of aniline and a test liquid (such as oil) will uniformly mix or blend. The aniline point of oil is a measure of aromaticity (the amount of unsaturated hydrocarbons present). The lower the aniline point, the more unsaturants are present and the higher the potential for swelling certain rubber compounds
Annealing
A process of holding a material at a temperature near, but below, its melting point, to permit stress relaxation without distortion of shape. Often used on molded article to relieve stresses set up by flow into the mold
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