Glossary R

Deutsch: Gummi / Español: Hule / Português: Borracha / Français: Caoutchouc (matériau) / Italiano: Gomma
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of suitable polymers of the organic compound isoprene, with minor impurities of other organic compounds plus water. Forms of polyisoprene that are useful as natural rubbers are classified as elastomers.