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Old 08-09-2008, 06:58 AM   #1
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Plaster Work Still Getting Soft When Wet


Hi I had some walls removed in my home and plaster work was required. The plaster skim coated over the wall paper instead of removing it as I request and told me to just score the wall paper with a razor so to not rip up the plaster when I remove the wall paper.

I let the Plaster dry for more than a month and this weekend I started to remove the wall paper with Water / Vinger. My question is when I wet the plaster it softened up again. Should this be happening?

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Old 08-09-2008, 07:27 AM   #2
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Plaster Work Still Getting Soft When Wet


Was it plaster that was used, or drywall compound?

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Old 08-09-2008, 09:23 AM   #3
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Plaster Work Still Getting Soft When Wet


I was told plaster. He is coming by today to fix and skim coat a small angled ceiling and mentioned something about Dura Bond if that helps. Should I ask something specific of him today? My fear is when I start to paint it will wet up again and be a big problem.

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Old 08-09-2008, 12:41 PM   #4
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Plaster Work Still Getting Soft When Wet


If it softens up when it gets wet, it was probably a drywall joint compound, not real plaster. About the only time real plaster is used nowadays is in historic buildings where it's important to use the same materials and methods used at the time of construction. Nowadays, everyone uses joint compound to repair plaster.

Yes the joint compound will soften up when it gets wet. No, that will not be a problem when painting. Just apply a primer coat over your joint compound, allow to dry and paint normally.

I think it was a lousy idea to skim coat over the wallpaper. In my view, it woulda been better to remove the wallpaper, fix any problems with the underlying wall, prime and paint.
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Old 08-09-2008, 01:31 PM   #5
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Plaster Work Still Getting Soft When Wet


Thanks Nester.... It was joint compound. They redid everything and smooth it out. I just need to do a quick light sand when it is good and dry and prime. It was double the work and use of materials for them to skim over the wall paper and have to come back and fix it. It would have taken 45 minutes; it that; if they would have remove the wall paper back from the areas to be plastered and they would have been done. They were thinking I would score the paper and there wouldnt be a seam to contend with but that didnt work out.

It is all done and should be fine. Thanks so much for the input and replies Guys....
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Old 08-10-2008, 01:40 AM   #6
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Plaster Work Still Getting Soft When Wet


Quote:
Originally Posted by davidmp View Post
Should this be happening?
Sorry, my bad. wrong post
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Old 08-10-2008, 04:49 AM   #7
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Plaster Work Still Getting Soft When Wet


I think it was a lousy idea to skim coat over the wallpaper. In my view, it woulda been better to remove the wallpaper, fix any problems with the underlying wall, prime and paint.


YES !
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Old 08-10-2008, 10:52 AM   #8
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Plaster Work Still Getting Soft When Wet


To answer your original question:

Until it is primed and painted, the joint compound will soften when wet. Once you paint it, that forms a barrier that will keep if from swelling in the future from short-term water contact.

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