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Color coat blotches

 
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Cobe



Joined: 01 Jan 2017
Posts: 22
Location: UT

PostPosted: Tue Sep 19, 2017 10:15 pm    Post subject: Color coat blotches Reply with quote

I'm finishing a body in vintage cream, and after a couple of clear nitro coats I noticed I had some dark particles in it. Unfortunately most of them didn't sand out until I hit the color coat, a couple sand throughs to the base coat also happened, but no big deal. Did a couple of quick color touch ups to those and got back to doing the clear.

I noticed that the spots where I had sanded down to the color appeared lighter compared to the areas with clear, and I just assumed they would match up once they got hit with clear again. But...after a single coat they didn't.



Hope it can be seen in the image, but I'm left with a blotchy-ness to it. Did I miss something in this process? What's the best way to correct? Is it safe to just re-coat the whole thing (including the sections with clear) with color, then start over the clear process?

I also had some parts that turned wavy when I cleared over them, what happened there? Any help appreciated Crying or Very sad

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sunderlandmorrow



Joined: 18 Aug 2017
Posts: 4

PostPosted: Tue Sep 19, 2017 11:06 pm    Post subject: Reply with quote

I think I posted the same exact thing, vintage cream as well. Just hit the body with vintage cream again, maybe 1 or 2 coats. Then go back to clear coating. Very simple, worked great for me.
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Lon



Joined: 30 Dec 2003
Posts: 6085
Location: Stephenville, TX

PostPosted: Wed Sep 20, 2017 7:55 am    Post subject: Reply with quote

Once you sand the color coat, there will be a difference in color from the unsanded to sanded areas. Just shot more color coats to full coverage, then the clear coats.
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Cobe



Joined: 01 Jan 2017
Posts: 22
Location: UT

PostPosted: Wed Sep 20, 2017 12:30 pm    Post subject: Reply with quote

Thanks folks!

Sunderlandmorrow - yep, did see it, but wasn't sure if I was dealing with the same thing with all my sanding. I'll just go over it again.

Lon - always appreciate your help and advice!
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ladyfinisher



Joined: 21 Feb 2013
Posts: 398
Location: California

PostPosted: Fri Sep 22, 2017 10:11 am    Post subject: Reply with quote

Since you will have to sand the body anyway, I would try and sand it enough to get it flat now. Then there will be less chance of it happening again.

Ladyfinisher
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Cobe



Joined: 01 Jan 2017
Posts: 22
Location: UT

PostPosted: Fri Sep 22, 2017 10:20 am    Post subject: Reply with quote

Thanks! That's exactly what I did all last night; such a bugger, but it's done and looks good. Really weird how those ripples formed, I wonder if I hadn't let the touch-up spots cure long enough before shooting the clear (it only happened in those regions).

#liveandlearn
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