Body filler over Epoxy?

[BadaSs_Cal]

I keep looking it up and people swear by it both ways!!
It makes sense because filler would stick better to metal.. But after sanding my bedsides down there are a couple rust spots under previous filler work (they used alot!) SO epoxy under filler makes sense too to keep out moisture...


I was hoping to spray the whole thing down today, just finished welding up all the trim holes.. and slowly do my filler here and there when I have time... then put down my high build... then seal and paint

What say you guys? thanks in advance.

thanks guys.. can a mod move this for me to the proper area please.. also Im using the TCP DTM Epoxy Primer..I know not the most advanced but in my price range. thanks