Paper was stripped off a while ago. Walls were painted before being papered (not by me) - just round to re decorating. The paint is crazing/flaking off - which I believe is down to the paint that had been used reacting with the wallpaper paste left on the walls after stripping....
I know I need to get the wall paper paste off completely if I want to not use lining paper and just paint the bare walls or the new paint might do the same.
After a rewire there are a few areas that have been re-plastered, quite a few cracks/holes I've filled - planning on using an electric wall sander to get them smooth enough.
Have dry scraped the worst loose flaking paint off (it was like snow), given the fresh plaster a mist coat (60:40 trade matt emulsion:water). Then had a go at getting the paste off with water and a scraper. It isn't really bringing the paint off but there is obviously quite a lot of paste still on the walls - really messy and time consuming...someone said using sugar soap in the water might help? Is that true?
But then I thought seeing as I am going to have to give them a really thorough sand anyway ... I could give them a good sand with a coarse-ish paper/mesh (which should take the old paste off), then with fine paper, wash them with sugar soap to get any remaining paste off and then another mist coat - as I imagine the coarse sanding will take a lot of the old paint off too. Fill any imperfections that shows up, fine sand where necessary, possible another base coat and then top coat.
Does that sound like a reasonable plan - or do I really need to get the paste off first.
Also plan on using vinyl matt as the top coat - with the (non-vinyl) matt I've used for the mist coat - both water based - should be ok?
I know I need to get the wall paper paste off completely if I want to not use lining paper and just paint the bare walls or the new paint might do the same.
After a rewire there are a few areas that have been re-plastered, quite a few cracks/holes I've filled - planning on using an electric wall sander to get them smooth enough.
Have dry scraped the worst loose flaking paint off (it was like snow), given the fresh plaster a mist coat (60:40 trade matt emulsion:water). Then had a go at getting the paste off with water and a scraper. It isn't really bringing the paint off but there is obviously quite a lot of paste still on the walls - really messy and time consuming...someone said using sugar soap in the water might help? Is that true?
But then I thought seeing as I am going to have to give them a really thorough sand anyway ... I could give them a good sand with a coarse-ish paper/mesh (which should take the old paste off), then with fine paper, wash them with sugar soap to get any remaining paste off and then another mist coat - as I imagine the coarse sanding will take a lot of the old paint off too. Fill any imperfections that shows up, fine sand where necessary, possible another base coat and then top coat.
Does that sound like a reasonable plan - or do I really need to get the paste off first.
Also plan on using vinyl matt as the top coat - with the (non-vinyl) matt I've used for the mist coat - both water based - should be ok?