Ebonite

From Free net encyclopedia

Ebonite is one of the earliest forms of plastic. A hard, rigid and shiny resin, it was intended as an artificial substitute for ebony wood. It is actually a very hard rubber first obtained by Charles Goodyear by vulcanizing rubber for prolonged periods. As a result, it is about 30% to 40% sulfur. It is often used in bowling balls, fountain pen nib feeds, and high-quality saxophone and clarinet mouthpieces.

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