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Commercial Grades of Rubber
Commercial grades of rubber are usually blends consisting of one principal polymer and other less costly polymers that are compatible with the named polymer. Primary examples of commercial grades are commercial neoprene, commercial Nitrile, and commercial EPDM.
Due to the expense of most single polymer compounds, a large percentage of today's rubber market buyers whose products require only a limited number of properties found in a single polymer, will sacrifice other properties for a less costly grade of rubber.
For many applications, the blending of polymers adds properties that cannot be obtained in a single polymer compound and from this standpoint, certain desirable properties may be compounded into the end product.
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