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Painting over wallpaper that was (mostly) removed ?

Painting over wallpaper that was (mostly) removed ?

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  #1  
Old 11-26-12, 09:16 AM
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Painting over wallpaper that was (mostly) removed ?

So the previous owner had this horrible wallpaper installed. In fact it appears it was layed on top of another piece or previously installed wallpaper. We have removed the wallpaper - actually it came off pretty easily. But it left behind some imperfections/ruts/edges .. We have scraped off everything that we could, but some edges are still apparent when I drag my hand over the wall. Even after sanding it.

What is the best way to prep this to paint? Should we aply a thin coat of Wallpaper mud and then sand THAT? Or can we get by with a thick coat of Primer paint, then paint the final coat over that? Sand the Primer?

Any advice is appreciated. Thanks
 
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  #2  
Old 11-26-12, 09:26 AM
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It's almost always best to remove all the paper..... but not always practical

Have you used any water in your removal process? Getting the adhesive wet will partially dissolve it making the paper easier to remove.

If you don't get all the old paper and adhesive off you need to coat the wall with either an oil base primer or Zinnser's Gardz. That will seal the wall so it won't react badly to latex primer/paint of the moisture in joint compound. Once that primer has dried you can skim coat as needed with joint compound [drywall mud] Once the repairs are finished, remove any sanding dust and prime [latex is fine] and it should be ready for paint

Primer alone won't fix the unevenness in the wall.
 
  #3  
Old 11-27-12, 07:34 AM
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Thank you ! Sounds like a good enough approach.
 
  #4  
Old 12-04-12, 08:23 AM
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OK, for the record - Zinnsers GARDZ was an expensive disaster... applied it, allowed to dry for a day, then 1-2-3 Primer ... everywhere there was left-on glue CRACKED ... even a 2nd coat of Primer - CRACKED ... ugh ... what a mess.

So today I will take soapy hot water to the cracked sections in hopes to get that damn glue off and then re-Primer tomorrow... may have to try a putty knife if the water method doesn't work ... (why the heck do people wallpaper anyway? Just sayin')
 
  #5  
Old 12-04-12, 09:28 AM
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I doubt water will be effective over the primer. Sanding and maybe adding a thin layer of joint compound will be the fix.

How much adhesive was left on the wall?
 
  #6  
Old 12-04-12, 09:34 AM
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How much ?? Well, it's spotty ... some larger areas (maybe 2x3') and smaller patches of it ... lesson learned.
 
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