Ebonite, what is it?

Ebonite, what is it?

Ebonite or hard rubber is obtained by vulcanizing natural rubber for prolonged periods. Ebonite may contain from 25% to 80% sulfur and linseed oil. The material has also been called vulcanite, although that name formally refers to the mineral vulcanite.
April 01, 2020 — Salvatore Matrone