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Old 10-05-2010, 09:04 AM   #1
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What happened?


Can someone tell me what happened here and how to get a coat of paint to stick without this cracking?

I put three coats on this prior to going to bed and it looked good while it was wet, when I woke up it looked like this.... It should be solid gloss black. I'm painting over gloss foe wood paint that i lightly sanded and cleaned prior to painting. If you can not tell from the pictures, the paint is separating/cracking as it dries.

Thanks for any advice!
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Old 10-05-2010, 11:52 AM   #2
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It looks to me like you needed a primer. Three coats in quick succession probably did not help matters. When you say 'gloss faux wood paint', what exactly do you mean?

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Old 10-05-2010, 01:45 PM   #3
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The post and railing was painted with glossy paint that looks like a wood finish. Any suggestion on how to fix it? More coats of the same the paint with ample drying time or go over the existing paint with a primer then repaint?
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Old 10-05-2010, 01:57 PM   #4
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Originally Posted by TheDood View Post
The post and railing was painted with glossy paint that looks like a wood finish. Any suggestion on how to fix it? More coats of the same the paint with ample drying time or go over the existing paint with a primer then repaint?
You will need to strip that off.

What based paint was on prior, and what are you using now?

You will need to primer.
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Old 10-05-2010, 02:09 PM   #5
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Most paint requires at least an hour between coats
And many require 2-4 hours between coats
Read the can to find out
Looks like you will need to strip it off & start over
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Old 10-05-2010, 04:28 PM   #6
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Originally Posted by TheDood View Post
The post and railing was painted with glossy paint that looks like a wood finish. Any suggestion on how to fix it? More coats of the same the paint with ample drying time or go over the existing paint with a primer then repaint?

If you can easily peel your new paint off with your fingernail (likely), then as others have said, you may have to strip it off and start again. But if you are getting some decent adhesion (unlikely), i would try to rectify what you have presently.

Either way I would give it a few days to dry out and harden up a little, then do a test on a small area. If you are getting some decent adhesion, lightly but thoroughly sand with fine sandpaper or sanding sponge -- apply a tinted latex bonding primer and let that dry for a day or two. Then try one coat of your finish on top of the primer and let it dry for a day. If there is no separation of the film and you are continuing to get adhesion, then you are good to proceed.

If you are forced to strip off your coatings I would do a much more thorough sand on the original paint and then apply your primer. With problematic surfaces like this it definitely pays to test to see what works in small areas before hitting the whole job.

Good luck.
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Old 10-05-2010, 04:50 PM   #7
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Thanks to all for your help!.
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Old 10-05-2010, 11:48 PM   #8
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I sure don't think the problem was putting on too many coats too quick. I would first suspect what you cleaned the wood with left a film on the surface. You also could have Pledge on the surface of the wood, which is a wax based product.

I would scrape off anything you can now ans sand like crazy before you try putting anything over it. You have already seen that water based products are not reacting well with the surface, so you need oil based primer. After that you should be able to paint it with no problems.
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Old 10-06-2010, 11:21 AM   #9
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I tried chipping some of it off with my finger nail and was difficult to get it to chip away. I'm going to take the route of letting dry a couple more days then sanding, and primmer. I'm getting mixed advice on the primer, should I use oil based or latex bonding primmer?
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Old 10-06-2010, 11:55 AM   #10
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Because oil is so unpleasant to work with, I personally avoid it unless there is absolutely no alternative, especially on interiors. It is true though, that you may have to resort to it in this situation.

Because you are getting decent adhesion with your original coats, here's what I would do - in a couple days, sand a small test section. Apply a coat of finish paint to the small area and wait to see the reaction of the paint. If you get separation in the paint film again, you may have to consider an oil primer over top of your paint. My guess though, is that will not happen, and the next coat will give you a solid film. (I could be wrong.) If the film is solid and all the coats seem to be sticking, I would forego the primer altogether, and simply thoroughly sand the entire area and recoat it with your finish paint.

This is definitely not a common situation - I'd be interested to know how it turns out.
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Old 10-06-2010, 02:30 PM   #11
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Thanks again, I'll report back with pics.
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Old 10-09-2010, 12:20 AM   #12
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I say leave it as is... I like that look, kinda rustic! :D
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Old 10-09-2010, 01:03 AM   #13
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From what I can see, some people would pay for a look like that.
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Old 10-09-2010, 03:15 AM   #14
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I like it. Did some bathroom trim, real dark poly, that looked a lot like that.

How does it look dry today?
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Old 10-09-2010, 07:11 AM   #15
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the pattern looks very uniform as if it was done on purpose... considered just leaving it that way but i'm going for a clean new look..

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