vulcanise
/ˈvʌlkənaɪz/
verb
- To treat rubber or a similar material with sulfur or other chemicals at a high temperature to make it stronger, more elastic, and more durable.
- They learned how to vulcanise natural rubber in their chemistry class.
- The factory vulcanises rubber to make it suitable for shoe soles.
- Modern machines can vulcanise large sheets of rubber quickly.