Removing paint from plaster

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The walls in my dining room were probably plastered about 5 years ago. The previous owner has then painted directly onto the new plaster without doing a mist coat first. They have then wallpapered over this at a later stage.

I have removed the wallpaper but it has taken patches of the paint off with it. I've got a sharp scraper and have started to scrape off the paint back to the original plaster and although there is only one wall to do, it is time consuming. Is there a quicker way of removing the paint without damaging the plaster? I've already tried a heat gun but doesn't really seem to help.

Thanks
 
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You can use a steam stripper but you have to keep moving it otherwise you may blow the plaster skim coat.

Alternatively, if you apply a thick wall paper paste, it may help (messy though).
 
I stripped the paint back to the plaster in a number of rooms (yes you are right - v time consuming). I found the best way was to wet the wall slightly with a little soapy water, and then scrape. Holding the scraper at the correct angle helps immensely - i use two hands, one to hold the handle of the scraper and one to sort of press the blade onto the wall maintaining the correct angle - when the angle is right it comes off really easily and fairly quickly, if the angle is wrong it takes ages... Also i found the scraper dulls very quickly, so i took the grinder around with me and kept the blade touched up as i went, which also helps immensely.
 
I uncovered several similar walls a couple of years ago

As above, gentle use of a scraper (I used a window scraper) works if you get the angle right
Try to avoid digging in

I went over the walls with an orbital sander connected to a vac with a hep filter
 
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I stripped the paint back to the plaster in a number of rooms (yes you are right - v time consuming). I found the best way was to wet the wall slightly with a little soapy water, and then scrape. Holding the scraper at the correct angle helps immensely - i use two hands, one to hold the handle of the scraper and one to sort of press the blade onto the wall maintaining the correct angle - when the angle is right it comes off really easily and fairly quickly, if the angle is wrong it takes ages... Also i found the scraper dulls very quickly, so i took the grinder around with me and kept the blade touched up as i went, which also helps immensely.

Not cheap but Olfa make lovely scrapers. Quality Japanese products.
 

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