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Repainting problems after removing wallpaper

Hello, we have stripped the wallpaper manually without using any special products (now we realize it might be a mistake....) and unfortunately we didn't put the primer before repainting......the wall is now under poor condition and we don't know how to proceed. (see the pic. below - a small area washed by hot water)




Just wondering

1) Whether the wallboard is sheetrock (it seems to be) or anything else.....?

2) What's the layer in the middle just under the white paint ?

3) If the wallpaper hasn't been removed completely in some areas, how can we repair the surface. Shall we cover the entire wall with primer so that it can be smooth enough for the latex paint ? Or shall we clean the wall again thoroughly(probably even need to remove the newly painted layer)  ?


Thanks and any suggestions would be very much appreciated!




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Posted 2011-12-01T18:10:12+0000  by Sandra_Xu Sandra_Xu


Where wallpaper was truely hung over bare drywall, you can expect a nightmare getting it off,  regardless of what agent is added to the water. The problem is that without a moisture barrier  ( paint ) on the wall, the water neccessary to loosen the paste will continue into the drywall. It is extremely rare that this was done, because a knowledgeable paperhanger knew it was harder to hang paper over an unsealed wall. However, even if the wall looks bare, paperhangers sometimes used a clear wallpaper prep product to seal the walls. Unfortunately, you won't know what was done until you begin.


One of the projects I hated the most was removing wallpaper, precisely because you never knew before beginning if it was going to be a good or bad day and it was largely out of your control. You were at the mercy of the "wallpaperer" who hung the paper. If he prepared the walls properly, the paper will come down relatively easily. If not, good luck!  :(


To compensate for the porous unsealed drywall, the paperhanger would put large amounts of paste on the paper which would penetrate deep into the raw drywall, forming an extreme tight bond. By the time the paste would soften, the drywall paper would be so wet that any scraping of the surface would damage the wall.


At some point, you have to ask if the lesser of the evils is to just seal in the old wallpaper and paint over it.

Posted 2012-11-11T00:21:00+0000  by ordjen
Hi Sandra_Xu,

Paint prep is the key to outstanding paint results.

Follow the steps in this "How To" video for perfectly smooth walls every time.

Posted 2015-04-02T12:19:29+0000  by Pat_HD_ATL
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