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Old 12-11-2011, 07:00 PM   #1
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Why does my paint do this? Am I not waiting long enough between coats? It's just Rust-oleum spray paint.



Trying to figure this out on my phone, if picture doesnt load I'll get it loaded when I get home.

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Old 12-11-2011, 07:46 PM   #2
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Putting it on way too heavy.
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Old 12-11-2011, 08:35 PM   #3
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Was the surface absolutely clean before applying the paint? The paint can craze if there's something on there it reacts with. Was it primed?
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Old 12-11-2011, 09:17 PM   #4
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Too heavy and did you try to dry it fast with some kind of heating element?
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Old 12-11-2011, 09:56 PM   #5
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Yeah it was primed, then I put some white paint because it was gray primer. The white didn't do that like the green did. I probably put it on too thick. When I do the calipers themselves I will do real thin coats.
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Old 12-12-2011, 10:22 AM   #6
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I have seen Rustoleum do that on their enamels for a few reasons. If the primer was on too thick and was not really dry. You can get this when you recoat too soon as well. Finally, the paint can be dry and you break (sand) through the top layer of the paint. Usually this will show up at the edges of where you have sanded (recoat this area very lightly with a couple of coats of primer sprayed almost dry). I have used it for years on radio control airplanes. Good stuff, but you have to follow the directions on the can. I especially like the Industrial in the silver cans, but color choices are limited. Good luck.
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Old 12-12-2011, 02:10 PM   #7
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Quote:
Originally Posted by Doppelgänger View Post
Too heavy and did you try to dry it fast with some kind of heating element?
No I just left them outside to dry, but it's kinda chilly. Thanks for the tips fwman
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Old 12-12-2011, 07:00 PM   #8
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My pleasure Ryan. This is about the only subject I've seen on this forum that I actually could contribute a decent post about. I need to clarify one thing though. Where I said "if you recoat too soon", I was referring to once the paint is dry to the touch. For the basic enamels, you can recoat within an hour, but after that you have to wait at least 24 hours before you recoat again. As my planes take forever to build, my standard is to wait two days between recoats. That is where the industrial formulas have the advantage. They are much hotter and you can recoat faster. Basically, just play it safe and follow the can directions. You will not be happy spraying, or letting it dry in temps lower than about 65F. I do warm up the cans in very hot water on cold days. That helps, but after you spray, it should be placed in a warm environment that you are not going to stay in. It stinks! Good luck, and thanks for the thank you!
Roger
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Old 12-13-2011, 02:59 AM   #9
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Something you can do to help the stink is to get activated charcoal mat, tape it onto a fan, and just let that fan run in the room where the items are drying. If you close the door you probably won't be able to smell it anywhere else in the house. I just did this for my radiator top shield that I covered with Plasti-Dip. Ms Mobius never commented about any odors, and she's got a much better nose than I.

I used filters for aquariums from a pet store. The sheet is almost big enough to cover a 20" box fan and it's all of $7.
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