Spray Paint Help - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 12 (permalink) Old 08-24-2010, 09:28 PM Thread Starter
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Spray Paint Help

I've been having this weird issue with spray paint going on grainy. Never seen it before this summer. I assumed it was due to heat and paint drying too quick, but I did a round this evening when heat should not have been an issue and it did it to me. I assume it's something I'm doing wrong, but what? Am I not shaking enough? I know the surface was clean and sanded and cleaned again...

any advice would be awesome. thanks.

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post #2 of 12 (permalink) Old 08-24-2010, 09:32 PM
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Did you try a different brand of paint/primer?

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post #3 of 12 (permalink) Old 08-24-2010, 09:45 PM Thread Starter
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matching brand for each if that's what you're asking. i've had the issue with multiple brands though for other projects.

for this particular project the only companies that make the kind of paint I need are krylon and duplicolor, and I already have over $40 invested in just 4 krylon rattle cans so I'm not trying another brand this time :( I'll scrap the project before that.

humidity? could it be too high humidity...didn't think that just because it's cooler doesn't mean humidity isn't high...hmm.

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post #4 of 12 (permalink) Old 08-24-2010, 09:57 PM
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the only usable info I saw after a quick google was not letting it dry long enough, but even Ive put on a second or third coat before fully dry and never had a grainy appearance be the problem.

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post #5 of 12 (permalink) Old 08-25-2010, 03:14 AM
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Quote:
Originally Posted by stickx911 View Post
humidity? could it be too high humidity...didn't think that just because it's cooler doesn't mean humidity isn't high...hmm.

It could be the humidity, same as painting even inside when it rains, the paint doesnt want to stick properly. That is why some body shops without ovens wont paint when it is raining or high humidity.



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post #6 of 12 (permalink) Old 08-25-2010, 07:18 AM Thread Starter
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krylon xmetals suck.

I followed the directions, I even bought the special converter...garbage. they came out nothing like the cap. arg...I'm I'm pissed for special ordering this crap.



/rant

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post #7 of 12 (permalink) Old 08-25-2010, 07:55 AM
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I bought some rustoleum shit from homedepot... its like a Faux metal lookin spray... looked fantastic, The chrome looked like real chrome, gold looked like Goldshiny metal, great stuff!

Oh and paint can and will look like shit if drying in hihg humidity or impapropriatly prepped.

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post #8 of 12 (permalink) Old 08-25-2010, 08:04 AM Thread Starter
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I got it done in the morning when humidity should be at it's lowest. I just did a clear coat, I plan to sand it down and buff in a couple days after its fully dry. we'll see. if it still sucks, I'm going to wait till fall/winter when humidity is lower here and give it another go. Otherwise I'll just go shiny chrome or high gloss black.

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post #9 of 12 (permalink) Old 08-25-2010, 07:08 PM
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They are right.... Humidity is a killer... especially this time of year.

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post #10 of 12 (permalink) Old 08-25-2010, 07:58 PM
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Yup, humidity is what messed up my interior trim pieces. Decided it would be a good idea to do it on a hot rainy day... worst decision I've made lol
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