Can You Plaster Over Lead Paint . You appear to think that some old emulsion paints used lead, but i do not recall any emulsion paints that contained lead and. Once it becomes tacky, you can then apply the adhesive. Can You Paint Over Mold On Basement Walls Visual Motley from visualmotley.blogspot.com Make sure all flakey paint is taken off, cover all major cracks with fibre tape (skrim tape) to make sure the finished plaster doesn’t crack. One option is to skim plaster directly over the paint. The problems start pretty quickly after the plaster or bonding is put on, very quickly the finish begins to blister but small blisters.