Plastex

Plastex was a material that could be used to create domes for astromech droids. While in the workshop of the droidsmith Babu Frik, Rey noticed an astromech dome made of plastex, and, as a former scavenger, considered that it would be easy to buff out the scorch marks and sell it for profit. Beverage cups could also be made in plastex.

Text and facts from the “Plastex” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.