We repainted a wall that had been painted 12 years ago. I washed the walls well, used Mr. Clean eraser on crayon and other spots and washed again with water. When we painted, the paint separated in some areas and shows several areas where the paint wouldn’t cover. We used

We have an interior brick wall, which is red brick with lime mortar. The house was built in 1913, and the wall we would like to coat is in the old lean-to. It was originally partially covered with wallpaper, which is pretty degraded. We have removed most of the loose