Painting a basement - cinder block
We have a basement wall that was once an exterior wall and very wet. We had the drainage problem fixed and put on an addition so now it is in fact an interior wall - warm and dry. It was painted with drylock when it had the moisture problem and that did no good so we ended up with a white wall that is very discolored with what was once mold - brownish moisture - just really ugly. DH painted over that (its bone dry now) with light blue drylock today. It looks much better but you can see some of the discolor still and I am not sure blue is the final color we want.
Can we paint basement walls that are dry with something other than drylock? Will drylock as a first coat make a good primer? What would you use on these previously drylocked (white) walls that look crumby now that we fixed the water problem. Some of these walls are now 'interior' some exterior, all dry but some 'cold' I suppose in the winter. We have a dehumidifier there and have properly vented the dryer too so that additional source of moisture is now gone as well.