Paint peeling off walls in basement?

Anonymous asked 5 years ago

We moved into our home 3 years ago, and was told that the basement was “newly painted”. Over the last year we noticed that there was a little mold on one of the walls which we treated. Now my daughter has moved into the basement and wanted to repaint. Problem is as we paint the undercoat just seems to peel off in clumps, we have sanded the walls and tried to apply an undercoat but it just won’t stick. What can we do?

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