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Help-I sanded through the clear coat

4.2K views 14 replies 8 participants last post by  wendell  
#1 ·
I painted a car a couple of weeks ago and just started the wet sand process. My first piece is the trunk lid. I went through the 1200,1500 and 2000 and the I noticed a couple of spots about 1" x 2" that I went through the clear but not through the color. Can I just spray on more clear over these spots and sand? Will the spots still show? Do I need to spray on another color coat and then clear again? Thanks for any help and advice.
 
#5 ·
Be careful, depending on the color, it may show up after as a lighter spot when recleared.
 
#9 ·
Depending on how good you are, you can spot in the areas. Well, as i said earlier, it really depends on the color as to the difficulty. If it is a solid color, spotting in is easily done and then reclear. If it is a metallic, people sometimes have a hard time making the spots blend, and usually can end up with a lighter "halo" at their stopping point of their blend. Being that the trunk is a small piece, and you have only some small spots, i would recommend recoating the areas first, then doing a complete recoat of the entire lid, then reclear, just to be safe. You should be able to fix it with minimal paint usage and coats. Most of the time, once again depending on color, you should be able to get away with 1 blend coat over the spots, then an overall coat. So it will have 2 on the spots, 1 on the entire lid. If you are spraying PPG clears you will want to do this, as PPG clear adds a shade of darkness with each coat of clear. Dupont does about a half shade per coat of clear. Just depends...
 
#11 ·
If it is a metallic, people sometimes have a hard time making the spots blend, and usually can end up with a lighter "halo" at their stopping point of their blend. Being that the trunk is a small piece, and you have only some small spots, i would recommend recoating the areas first, then doing a complete recoat of the entire lid, then reclear, just to be safe.
Novices, and even pros can avoid a halo by spraying a wetbed prior to blending metallics. No need to recoat the entire panel. For a novice, the odds of a metallic mismatch when fully recoating are greatly increased.

John, Don't spray the base too wet or lifting may occur. This can be avoided by using BC hardener when initially shooting the car.
 
#13 ·
Easiest way to describe it is a clear base, or in waterborne applications referred to as an orientation coat. Basically it gives the areas that are to be blended a "bed" to settle into and cover up repair scratches, and blend more easily into the other metallics. It is a safer, more repeatable repair process. I personally don't do it, but i have a lot of gun time, but should be doing it. :thumbsup:
 
#14 ·