Waterproofing Painted Cement Blocks
I have cement blocks in my basement, which are painted.
I started getting black spots on my paint.
I scraped the paint, but there is white paint under it which I have not been able to remove.
While scrapping, pieces of the white paint did come off which revealed small black spots in cement blocks.
I did bleach the spots and filled in the holes in the wall, I don't get water in the basement and I have a dehumidifier in one corner of the basement.
Wanting to know what would be my next step to waterproof the cement blocks.
Would a Drylock paint be OK to put over the paint to spot the black spots of returning again and possible getting a other dehumidifier?