What can I use to fix broken plastic?

What can I use to fix broken plastic?

Good Ol' Glue Of course, there's always the option of gluing things together. For plastics it's best to use super glue (cyanoacrylate) or plastic model glue.

Can you melt plastic back together?

When the plastic casing of an object gets cracked or broken into pieces, most people just buy a new one; however, plastic is remarkably malleable and is quite easy to melt and reattach with a soldering iron.