Without the process of vulcanization, rubber is not a very functional substance.
This episode of steam culture provides insight into the process of vulcanization. When vulcanization is utilized, rubber becomes much more functional for various applications such as pencil erasers.
Brent also explains how the use of steam, heat, and other chemicals mixed with rubber can create some pretty cool products.
Check out this video to learn more about steam and how it relates to vulcanized rubber.