Re-Spray advice needed

J

jman340

Hello,
Last year I sprayed my car in SPI white base followed by 4 coats of universal clear. I ended up with a lot of black gnats that got in the clear and had some variation in the color because I painted the front clip separately and must have used an extra coat of color. It wasn't apparent until I put the fenders back on that you could see a minor difference between the fender and the door. By the time I sand out the remnants of a few of the gnats I went through the clear in a spot, so that combined with the color variation, I plan to re shoot the whole car in base/clear. Should I try and sand back down to the base or sealer to keep from too much build up, or is it okay to just thin out the clear and shoot over it again? I've started wet sanding with 320, but it's going very slow and it's hard to tell when I hit the base. What's best practice to keep from having any issues down the road? Once it's sanded I'll re-seal with reduced white epoxy to ensure a uniform base and paint the car as a whole so everything matches.

Thanks
 
No worries on sanding down all you need to do are wet sand the clear smooth and one coat of base over the clear
As you have the color covered.

Reason color changed the white base cant, as only one pigment, so what can is extra coats of the clear on some panels can change light colors.
Make sure the same number coat of clear on all panels.
 
Thanks for the replies. I had originally pained the front clip off the car in single stage SPI white and had planned on painting the rest of the car the following weekend, however right after that my dad passed so the project sat for a year. I tried to cut and buff the hood to see how it turned out, but by then it hardened too much. Instead of respraying the whole thing I sanded it all back down and switched to base/clear. I think the difference, which was pretty minor, was due to the front clip having some of the single stage still on it and the rest of the car having reduced white epoxy primer as the sealer. Since I still pained the front clip on a different day than the rest, it's possible that I put another coat of base on it too. I really didn't notice it until I put a fender back on and pushed it outside. You can almost see in this picture. The fender has a creamier look while the door has a bluer look.
Mustang2.JPG
Mustang1.JPG
 
Sorry about your dad.

I guess I am a little confused about what advice to give, generally speaking if we saw a problem like this at our shop, we would simply prep the fenders and doors, blend a bit of color at the fender/door gap and clear it. The bug problem is the wild card, the photos don't show any of that. What will keep the bugs out when you respray?
 
Definitely because of coverage. The front clip was completely white, while the back half was sprayed with reduced epoxy over what I would guess was gray primer. The white epoxy does not cover nearly as well as single stage. Anytime panels are sprayed separately, undercoat color consistency is critical, as is the number of coats of base. Even as good as Barry's base is, if you only sprayed 2-3 coats of base, you do not have COMPLETE coverage, and the undercoat color will change the base color enough that a panel to panel match will be off. As crash said, the easiest fix would be to blend the fender to door, but wouldn't fix the bug problem. Bugs are a big problem where I'm at, and they seem to love white. Spraying in the middle of the day seems to help, definitely not at dusk or later, as does a can of Raid Yard Guard:)
 
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