Yes, j par is correct. Epoxy prime first, then body work (fiberglass, bondo, etc). The old school way was body work on bare metal, then prime, but the concensus has shifted to seal the metal first with epoxy. I learned body work years ago and used to apply to bare metal. Now with more research I have epoxied the entire car first, then body work, then hi build (if exterior or show interior), seal, then color.
