I am in the process of exposing the plaster in my living room. Under generations of wallpaper, it is damaged in places; is it possible to apply new plaster even if the damage is not as deep as down to the reed, i.e., will it still adhere? Then I wonder if anyone knows what to seal the plaster with without changing the color?
Grateful for answers!
Grateful for answers!
I also say gypsum plaster. Just don't forget to dampen the old damages with water before you apply the gypsum plaster. Normally, you don't need to seal the old plaster in any other way than by priming it. Because I assume from your question that you were planning to paint the wall?
I assume that plaster is white? I plan to keep the plaster as a surface layer, but sand it to achieve an even, gray tone while retaining the plaster's raw character as a contrast to baseboards, window sills, etc. That's what makes it a bit challenging. I've heard of some kind of wax that is apparently used to treat exposed brick walls and similar indoors, is that correct? Thanks for the quick responses otherwise!
In that case, you prime the walls. Easy to use, just mix with a little water and splash on with a soft brush. But it can get a bit tricky with the repairs as you say. You probably won't find anything to repair with that doesn't cause a color shift. Even newly applied kalkpust (since that's what you now have in the walls) will cause a color shift.