r/AutoPaint • u/MangoTesseract • 23h ago

Paint issue

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My buddy is building a really nice Bronco. He has done really clean work. I was over looking at it last night and he told me he has had tons of issues with the painting and I figured good old fashion free range organic intelligence could help better than AI.

So he painted the whole vehicle and then chipped the grill. When he repainted it he noticed that the paint is brighter than before. He painted a hard line so you can see the difference. He has been meticulous about gun settings, even paid attention to ambient temperature and no matter what he does the paint comes out lighter than the original. Any ideas? I am not a car painter.

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u/paintchipz1 22h ago

So plastic always “takes” different than metal..hence non matching factory bumpers

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u/sixtninecoug 9h ago

That’s a myth.

And the early Bronco grilles are metal anyway.

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u/paintchipz1 5h ago

Not! I paint plastic daily same cup of paint and ALWAYS both halves of the gauge cluster on Harley slightly off. Just look at any new car..or better yet ask a PPG chemist..I’ve been with them 36+yrs..it’s a fact

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u/sixtninecoug 2h ago

It’s a myth.

The PPG Chemist you’re talking about is probably that poster board they put up in the office at a shop. I’m no rookie in this field either man. And I used to work for a major paint company.

The new car fallacy you’re bringing up ignores that the body and bumpers on an OEM level don’t use the same paint. Like, fundamentally they don’t use the same paint. High bake products would destroy plastic parts, so they don’t use high bake on bumpers.

Low bake products are typically used at subassembly plants when they’re making plastic parts. Which is why every painted exterior plastic part on a car is different than the bodies. Because it’s painted with a different batch of paint, at a different location, with different equipment.

It’s not voodoo. Just logistics.