Primer over bare metal?

dust said
After stripping the paint, is it now the common practice to use epoxy primer instead of self etching primer?

I've heard that you use epoxy on bare metal now so that you can work on the part after stripping.

Yes, that's what I was taught in a tech school class I recently took. You actually seal the bare metal with a reduced coat of epoxy. You can then use body filler on top of the epoxy primer.