vulcanized rubber
Technical term for rubber that has been treated with sulfur to improve elasticity and durability.
Vulcanized rubber is used in tires.
Synonym also meaning vulcanized rubber; 加硫ゴム is a slightly more common alternative in some industrial contexts.
Raw, unvulcanized rubber; contrasts with 硫化処理ゴム which has been chemically treated.
Compound of 硫化 (vulcanization) + 処理 (treatment) + ゴム (rubber), literally 'vulcanization-treated rubber'.