volcanize
/ˈvɑlkəˌnaɪz/
verb
- To treat or process a material (especially rubber) with heat and sulfur or other chemicals to make it stronger, more elastic, and more durable.
- The factory uses a special process to volcanize rubber for car tires.
- Modern techniques volcanize synthetic materials for industrial use.
- They learned how to volcanize natural latex to create waterproof boots.