Fiberglass Bumper Filler Paint

[2112]

Does anyone have any tips on how to prep and paint fiberglass bumper fillers? I am trying to save some money and do it myself. Any ideas? Thanks in advance for your help.

 

[zeus87gn]

Wet sand with very fine grit waterproof sandpaper, then paint.

That's what I did and used some black lacquer spray paint I got from Lowes. I think the paint is going south after 5 years though. Good quality paint will probably last better...maybe some primer would help.

 

[1970gsx]

I just finished mine. First sand the fillers with some 400 grit, then prime. Wet sand that with 600 grit. I used the small can of black Duplicolor from Pepboys and then clear coated it with the same. After a day I wet sanded with 1000 grit and then polished it with a foam pad on my drill and it turned out like glass.