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57 Chevy Pro-Street


James2

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This is not clear coat related. The clear did exactly what it was supposed to do, which is stick to the color. There was simply no adhesion between the color and primer. This is achieved one of two ways- mechanically or chemically. Chemically is when the color is applied before the primer is 100% cured and therefore the two "fuse". This is tricky with yellow, as it will require multiple thin coats of paint right before the previous one is fully cured. Or you can create mechanical grip, by roughing up the primer underneath. This is easily achieved by simply sanding it right before painting the color on, with something like 600 or 800 grid.Ā 

Ā  Ā  Ā The most common mistake people make is to let the primer cure for days or weeks, then basically polish it super smooth, then let it sit even longer and then spray thin coats that don't affect it. And you have very weak bond between the color and primer. Which is why I sand my primer with 600, then spray a good coat of color and then if necessary sand it with higher grid, before adding more color.Ā 

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This mishap was entirely user error. I simply got in a hurry and failed to remove the mask over the white before clear coat. And then in frustration tried to do so too soon before the paint cured. Being yellow I will not try to repair the damage due to the fact, it would be more effort than just painting a new body. Again as stated, lesson learnt!
image.jpeg.fc07212cf65d62f2f8ed139ec0cb6e7d.jpeg

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  • 2 weeks later...
10 hours ago, bill-e-boy said:

Looking good. And a rescue from you earlier issues. I find that yellow is the hardest paint of all colors to paint. First coat over primer OK but next coats are difficult. Just so hard to see what you are doingĀ 

Seeing wasn't an issue, keeping the yellow to stay on the edges is always an issue. All went well except the peak on top of the fenders! Not sure what I will do about that, if anything....

Thanks for the interest.

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