M
moparmusclecars
I know barry recommends epoxy first than filler. Why exactly is this other than corrosion protection. Is it because, epoxy first - the curing process of the filler creates some heat though minimal and that could bring moisture to the bare metal? Also I hear others say they took a class on this stuff and were taught, Fillers are designed to be applied to bare metal. Before applying fillers over the epoxy, what is the recommended grit sand paper to use, or is the grinding marks i made earlier before epoxying enough?