I sprayed a RTS epoxy primer on my truck, and its been on the truck for a week or better. I sprayed some HB can primer on the epoxy to prepare for a guide coat and the primer cracked ( like wet lightening bolts) every where there was epoxy. I dont think the epoxy ever fully dried completely. If I was to run a DA over it, it gums up. What do I have to do now? Sand it all off? Or will it eventually dry completely? I had planned to spray poly primer next, is that a bad idea? I'm open to suggestions, I really hope I dont have to sand it all off because of the gumminess underneath because I epoxied the interior too, what a pain.