Paint or primer (Page 1/1)
dad1966 JAN 08, 09:38 PM
Hello, just wondering if i am painting my car almost same color, orange now, to burnt orange, do i need to use primer after i sand it, or get away without.
Gall757 JAN 08, 09:49 PM
How good a job do you want? How good are your eyes? It's nearly impossible to find defects in the surface without primer.
carguy8t8 JAN 09, 09:33 AM
If you already have a smooth surface and don't have any body work to hide then just spray some sealer/adhesion promoter before the base coat.
Bubblhd90 JAN 11, 11:09 PM
Your finish coat of paint is only as good as your preparation. The fiero's flexible body can leave you with spider cracks which must be taken out. You said you were sanding and if you simply sand then use 220, but, you can spray a primer filler and block sand that very smooth, then get a tinted (Red) sealer and seal it for the finish coat. Depending on your skill level, a single stage paint is the easiest, but of course two stage basecoat, clear coat will give you the shine and depth and you can cut the finish with 1200 grit and 1500 grit wet, machine polish it and the look will be killer. Patients, preparation and good equipment go a long way. Good luck.
Tha Driver JAN 13, 05:30 PM
Factory paint? Sand smooth with 180 dry (with a DA & by hand), for the best adhesion prime with PPG DP epoxy primer. If the surface is smooth before priming, you don't have to sand the epoxy - just start shooting the paint after a 30 minute wait for the primer to tack. If it's not perfect (or if you want a really smooth surface), you can sand the epoxy with 400 wet before painting, but you have to let it dry a day or two before sanding 'cause it's very sticky.
Any repairs may need a hi-build 2K type primer over the epoxy in order to block them out, them prime those spots with epoxy again.
"Adhesion promoters" are crap.
If it's been painted before, you should strip off all the non-factory paint, either by sanding or stripper.
http://gafieroclub.org/bbs/index.php?topic=469.0
http://gafieroclub.org/strip_fiero.shtml
HTH,
~ Paul
aka "Tha Driver"

Custom Fiberglass Parts

[This message has been edited by Tha Driver (edited 01-13-2019).]

2.5 JAN 15, 11:41 AM

quote
Originally posted by Tha Driver:


If it's been painted before, you should strip off all the non-factory paint, either by sanding or stripper.





Is this because of the quality of the factory paint, the type of factory paint, or simply that you don't have to remove factory paint because you risk ruffing up the plastic?
Tha Driver JAN 15, 12:31 PM

quote
Originally posted by 2.5:


Is this because of the quality of the factory paint, the type of factory paint, or simply that you don't have to remove factory paint because you risk ruffing up the plastic?



It's because you never know how well it was prepped for the previous paintjob (& it's a good bet they didn't use epoxy primer for the best adhesion), & because you don't want to build the paint up any thicker than necessary. The factory paint is adhered well so you don't have to take it all off down to bare plastic/SMC, just get it smooth (feather any peeling clear, etc.).
~ Paul
aka "Tha Driver"

Custom Fiberglass Parts
2.5 JAN 16, 01:37 PM

quote
Originally posted by Tha Driver:


It's because you never know how well it was prepped for the previous paintjob (& it's a good bet they didn't use epoxy primer for the best adhesion), & because you don't want to build the paint up any thicker than necessary. The factory paint is adhered well so you don't have to take it all off down to bare plastic/SMC, just get it smooth (feather any peeling clear, etc.).
~ Paul
aka "Tha Driver"

Custom Fiberglass Parts



Thanks