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Old 04-11-2013, 07:25 PM   #1
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Prepping horsehair plaster walls


What is the best way to prep horsehair plaster walls for painting?

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Old 04-11-2013, 07:34 PM   #2
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Prepping horsehair plaster walls


With that little info how would we know?
Are they full of cracks, keys broken off and it's coming away from the lathe, water stained.

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Old 04-11-2013, 07:39 PM   #3
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Prepping horsehair plaster walls


They are in really good condition as far as I can tell, only a few small cracks but mostly intact, and no water stains....
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Old 04-12-2013, 08:46 AM   #4
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Here you go.....
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Prepping horsehair plaster walls-image-4156825193.jpg   Prepping horsehair plaster walls-image-1365423614.jpg  
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Old 04-12-2013, 08:59 AM   #5
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Prepping horsehair plaster walls


We have been giving Joe a hard time, sorry you might feel in the middle of that.

Are your walls presently painted? kind of looks like something is on it already. Did it have wallpaper on it?
Also it looks like it has a sand texture- correct?
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Old 04-12-2013, 09:07 AM   #6
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Prepping horsehair plaster walls


Totally fine to give Joe a hard time, in enjoying that! It had wallpaper on it. It's in the process of being stripped (which bites, big time). It isn't a very smooth finish on it, it feels coarse.
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Old 04-12-2013, 09:16 AM   #7
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Prepping horsehair plaster walls


OK- So it has a paint on it, then paper. You need to remove the paste off also- which will be a drag I know on a rough surface. Use a sponge, water. and even a scrubbie.
Some think stuff like Dif or fabric softener helps- I have found just water and patience is sufficient.
The fact that it is a plaster wall at this point makes little difference, because you aren't dealing with the raw plaster surface.
Prime after removing paste with a clear sealing primer called Gardz- this will seal the paste residue in so it doesn't cause problems later.
Then you can finish with 2 coats of whatever you want for wall paint.
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Old 04-12-2013, 09:39 AM   #8
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Prepping horsehair plaster walls


You said the walls were in good shape and on the surface this would seem to be true so count your blessings in this regard.

You should make sure the plaster has not separated from the lathe anywhere. You can pull it back into contact with plaster repair systems that look like large washers with a boltish sort of thing in the middle. Then patch over them. Hopefully you will not need to do so.
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Old 04-12-2013, 09:44 AM   #9
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Joe, I can't reply to your personal message, so here is what I wrote to you....
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Originally Posted by joecaption
That's some nasty looking walls you have there.
Sure looks like you have some moisture coming through the back sides of the plaster.

Just a guess, really old house, ballon wall constrution, little or no insulation in the walls, wooden siding just attached to the studs with no sheathing or house wrap.

I'd first clean with TSP, rinse it off, and use an oil based primer, or this.

http://rustoleum.com/CBGProduct.asp?pid=221

After that you can use reguler latex paint.
The walls I took the pictures of haven't been totally cleaned or stripped properly by me, I actually haven't done any of the wallpaper stripping in this room. This is my fiancÚ's house and he and his ex wife started in that room (not sure what they were using to help strip the paper), I just started stripping the paper last week and the walls in the living room and dining room look much cleaner. There really isn't a whole lot of moisture in the house at all. It is about 100 years old, and I'm not positive about the construction. It seems to deal up nicely, no drafts etc in the winter.
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Old 04-12-2013, 10:10 AM   #10
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Prepping horsehair plaster walls


Use GARDZ, not an oil-based primer, over possible wallpaper paste residue.
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Old 04-12-2013, 10:58 AM   #11
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Prepping horsehair plaster walls


Horse hair was put in the brown base coat, not the white top coat, so why is the horsehair even considered?

Washing with TSP, bleach and warm water seems like a reasonable approach to me, Vinegar and water might be required also, to break the old wallpaper paste.

Let it dry out, then prep it like its masonry, cause it is
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Old 04-12-2013, 11:02 AM   #12
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Prepping horsehair plaster walls


Quote:
Originally Posted by Brushjockey View Post
We have been giving Joe a hard time, sorry you might feel in the middle of that.

Are your walls presently painted? kind of looks like something is on it already. Did it have wallpaper on it?
Also it looks like it has a sand texture- correct?
Don't worry about it, the OP won't see those posts.
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Old 04-12-2013, 11:03 AM   #13
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Prepping horsehair plaster walls


The vinegar and water works well for removing the wallpaper
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Old 04-12-2013, 11:05 AM   #14
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Prepping horsehair plaster walls


So, is the consensus that TSP is the best prep after the wallpaper is removed?
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Old 04-12-2013, 12:12 PM   #15
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Prepping horsehair plaster walls


Oh you boys! I'm completely confused now, but laughing hysterically!

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