Help with breathable paint and dark patches
I bought a Victorian flat last year which hadn't been looked after very well - it had layers of wallpaper and paint on the walls which, when we took off, crumbled a lot of the plaster with it.
I had the wall and holes repaired and skimmed in limelite and have used Earthborne breathable paint but large patches of it are coming through darker. I first did a mist coat and then a solid coat, then I tried with a bonding primer underneath but no luck - the same patches come through (this one in the picture runs all the way through the bottom of the pictures on the wall - i attempted a gallery wall to hide the patch).
I had a damp survey which told me to make it breathable so I dont really want to cover it with anything not. Any ideas what I can do to stop these coming through?
The patches aren't wet to the touch, don't get any bigger and the other side of the wall is a cupboard which isn't damp and doesn't have these markings, so I really dont think it is damp.
Thanks for your help