I’ve searched all the relavent threads and am still confused. I used the Eastwood Epoxy primer on my Jeep project. Is it true that I CAN NOT apply Primer-Surfacer over the Epoxy after the 7 day window even if I scuff it with a red pad? I put the Epoxy on about a month ago. Must I respray the Epoxy then within 7 days get the Primer on?