Oops, so maybe I didn't read the technical data sheet for the Nason Ful-Poxy epoxy primer carefully enough, but I'm noticing where it says, under "Dry Times", that "Ful-Poxy can be recoated at any stage of cure". Doesn't this mean that, rather than scuffing up the old primer, I could instead shoot another coat of Ful-Poxy and then spray the top coat OK?