need info on fender rehab

[jgurnari]

rear aluminum bumper had corrosion.
Has been sanded and ground out.
Do I use or should i use Epoxy then Bondo?… then acid etching primer then paint?
Or is there a better procedure or products?

[Dpmulvan]

You don’t need acid etch primer, it’s for bare steel generally.

[962porsche]

you epoxy primer then use a quality body filler ( not a fan of bond brand filler ) then epoxy primer , prep and top coat.