Custom bumper inquiry
I'm building a custom front bumper for my dads 1997 ford f-250 and I'm almost finished with it. I was planning on using rustoleum bed liner spray on the exterior of the bumper but would like to cover up some off the little imperfections as much as possible without using body filler. My question is: can I use a self etching primer and then a filler to take out some of the sraatches and make it a bit more smooth yes I know it won't do all that much but anything is better than nothing) all while not comp to missing the adhesion on the bed liner or would it be better to lose the filler and just use self etch primer???
Any replies would be greatly appreciated
I will also post a couple pics of bumper status.



