I have a 1980 El Camino and a 1971 Chevelle. These two projects take all of my time and most of my money. Sometimes I listen to the idiots at the parts and the paint stores and get really bad information. I hope someone can tell me what I can do to fix my latest headache. We sanded the entire 1980 El Camino down to bare metal and I let one of those previously mentioned idiots sell me some NASON 491-17 etch primer. I still need to fill some small dents with body filler. I bought Evercoat Rage filler. The Evercoat Rage is not sticking to the etch primer very well. Should we sand off all of the etch primer and then apply the body filler to the bare metal or should we spray an epoxy primer on to the bare metal and then apply the body filler to the epoxy primer? ( I will let you guess what I want to do the idiot who sold me the etch primer).