All of my painting experience in the last 30 yrs or so has been on boats. With the marine paints once you put an epoxy down you have to stay with an epoxy base for your fillers as well, you can't use plain old Bondo or equivalents.

My '37 body comes back from the strippers on Monday and I need to seal it right away. With the suggested epoxy sealers I see recommended here can I use polyester fillers directly on top of the epoxy?

There will be metal work (patch panels) to be worked in and the top coats will be in an LP if that impacts the recommendation.

Thanks, Mark