Paint Easily Peeling From Walls

 
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Old 01-19-2012, 11:05 PM   #1
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Paint Easily Peeling From Walls


Do you paint pros know what is causing paint to easily peel off a bathroom wall in a house Im working on. How would you suggest I prep and repaint. Thanks SM
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Old 01-19-2012, 11:07 PM   #2
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Re: Paint Easily Peeling From Walls


I'm not a painter.....but....

wrong paint....or poor or no prep...

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Old 01-19-2012, 11:09 PM   #3
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Re: Paint Easily Peeling From Walls


Latex over Oil
Poorly primed wall, or not primed at all
Moister trying to escape from walls

That would be my top three guesses.

Last edited by WildWill; 01-20-2012 at 12:46 AM.
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Old 01-19-2012, 11:13 PM   #4
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Re: Paint Easily Peeling From Walls


What do you suggest I do to fix WildWill
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Old 01-19-2012, 11:35 PM   #5
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Re: Paint Easily Peeling From Walls


Best to wait for one of the paint pros for that, if it's moisture I have several fixes for that.

You can test for moisture int he wall with a cheap moisture meter.

Can get on at most paint stores.
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Old 01-20-2012, 12:19 AM   #6
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Re: Paint Easily Peeling From Walls


Oil over latex is not a problem.
Latex over oil is a problem, but that is probably what Bill meant.
Scrape off as much as you can that is loose. feather in the edges ,with a random orbit if nessissary. Sand all surfaces really well, and prime with a top notch oil primer. If the surface is not great, you may have to skimcoat with a classic finish mud, ( not a general purpose). Spot prime those areas. Sand and paint with a GOOD latex paint.
Should be good to go.
An alternate method would be to tear out all drywall and start again
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Old 01-20-2012, 12:37 AM   #7
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Re: Paint Easily Peeling From Walls


BDR is oil primer a must. Its gonna stink up the house for days
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Old 01-20-2012, 01:22 AM   #8
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Re: Paint Easily Peeling From Walls


Yes. I would not recomend anything else.
The smell really isn't that bad.
Close the door and leave the fan on if nessissarry
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Old 01-20-2012, 05:29 AM   #9
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Re: Paint Easily Peeling From Walls


kinda depends on where it is peeling, If it appears to be where showering and mist have gathered then you know it is lack of adhesion due to soap and if it is just the ceiling , then water leaks but all over the wrong paint, Ive even seen latex to latex not adhereing, buy some acetone, and see what layers are what for starts. Just covering it with an oil primer won't really do a whole lot, a big hard shell that as a whole is stronger than weak bits. A really sharp plaster patching knife is more effective than sandpaper unless you like painting super dusty-crusty walls
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Old 01-20-2012, 10:00 AM   #10
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Re: Paint Easily Peeling From Walls


So you don't sand walls before you paint??
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Old 01-20-2012, 12:02 PM   #11
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Re: Paint Easily Peeling From Walls


got mixed up with poster, I just meant that sanding off all you can before scraping is a big mess sorry for the mis direction,,, I'll just stay out of it
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Old 01-20-2012, 12:52 PM   #12
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Re: Paint Easily Peeling From Walls


Quote:
Originally Posted by B.D.R. View Post
Oil over latex is not a problem.
Latex over oil is a problem, but that is probably what Bill meant.
Scrape off as much as you can that is loose. feather in the edges ,with a random orbit if nessissary. Sand all surfaces really well, and prime with a top notch oil primer. If the surface is not great, you may have to skimcoat with a classic finish mud, ( not a general purpose). Spot prime those areas. Sand and paint with a GOOD latex paint.
Should be good to go.
An alternate method would be to tear out all drywall and start again
You can paint latex on top of oil primer with no problem. You don't usually want to paint oil over latex. Latex is much more flexible than oil.

Test the surface with some deglosser. If paint comes off it is latex.

In either situation use an oil based primer and then you can paint with oil or latex paint. It will seal the surface much better than water based primers.
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Old 01-20-2012, 02:41 PM   #13
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Re: Paint Easily Peeling From Walls


Best prime with BIN white shellac, will promote great adheasion plus act as a vapor barrier.
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Old 01-20-2012, 04:18 PM   #14
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Re: Paint Easily Peeling From Walls


Quote:
Originally Posted by B.D.R. View Post
Oil over latex is not a problem.
Latex over oil is a problem
Quote:
Originally Posted by TNTSERVICES View Post
You can paint latex on top of oil primer with no problem. You don't usually want to paint oil over latex. Latex is much more flexible than oil.

Test the surface with some deglosser. If paint comes off it is latex.

In either situation use an oil based primer and then you can paint with oil or latex paint. It will seal the surface much better than water based primers.
OK guys - I thought I knew this but now I am confused and unsure
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Old 01-20-2012, 04:27 PM   #15
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Re: Paint Easily Peeling From Walls


Have you ever grabbed a can of the Kilz or Zinnser primer in a spray can to cover a water stain and then paint flat white latex on top? Works just fine and the can is an oil based product.

But I am just talking about primers. I wouldn't paint a latex product on top of an oil based paint. I would use an oil based primer first.
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Old 01-20-2012, 04:39 PM   #16
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Re: Paint Easily Peeling From Walls


I have seen paint peel around showers due to either dusty walls when painted, no primer, or both. Is it peeling everywhere? Is it peeling off and exposing the drywall or another layer of paint?
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Old 01-20-2012, 04:46 PM   #17
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Re: Paint Easily Peeling From Walls


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I have seen paint peel around showers due to either dusty walls when painted, no primer, or both. Is it peeling everywhere? Is it peeling off and exposing the drywall or another layer of paint?
Pics would help as well.
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Old 08-30-2012, 03:38 PM   #18
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Re: Paint Easily Peeling From Walls


To take this in a slightly different direction, if you *wanted* the paint to peal off the walls (eg, to make brick look like it'd been painted decades ago), would sealing the wall (brick in this case) with a clear oil-based primer then painting over it with latex paint do the trick?
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Old 08-30-2012, 07:52 PM   #19
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Re: Paint Easily Peeling From Walls


sounds like key word is primer. Moist areas, bathrooms and kitchens, OIL. Shellac based is more for covering stains than adhesion.
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Old 08-30-2012, 07:56 PM   #20
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Re: Paint Easily Peeling From Walls


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I have seen paint peel around showers due to either dusty walls when painted, no primer, or both. Is it peeling everywhere? Is it peeling off and exposing the drywall or another layer of paint?
Yup...I've experienced this twice...the first time and last time. When first starting out, I repaired a ceiling and did not get the drywall dust off before priming. I went back to give a second coat of paint a few days later and the paint pulled right up with the roller. I brought in a pro and he told me what the problem was. Haven't had the problem since.

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