Epoxy over Etch prime is fine....just don't sand through the epoxy to bare and try to spot in with the Etch Prime,it will lift the edge of the Epoxy.
2011 Palomino Sabre 31RETS,5th Wheel,Triple Slide,4000W Onan Genset
2006 Super Duty,XLT, V10, 6 Speed, 4.10, Tow Command, Tow Pkg. 4X4,Dual Exhaust,K&N,Reese 15K,Air Bags