Originally Posted by
BTinNYC
Regarding powder coating vs. wet paint, the powdercoater I'm working with explained we can't fill dents with Bondo. It tends to flake off during the heating process and can interfere with the electric charge. If there's no dents, then no issue.
You can't use Bondo with powdercoating, but you can use other options, like "Lab Metal". Search for "high temperature powdercoat filler" and you'll see options. I'm surprised your powdercoater didn't mention that.