Mildew stains often make an appearance in damp locations,
such as bathrooms and basements. Before painting, you'll
need to eliminate this black, speckled growth to make sure
new coats of paint adhere well.
Test the
stains by washing with some warm water and mild detergent.
Ordinary stains will wash out, but mildew won't. If the
stains don't wash out, gently sand them out with 150-grit
sandpaper.
Put on some
rubber gloves and eye protection before you wash walls
with bleach, which will kill the mildew spores. After the
bleach treatment, wash mildew away with some TSP solution
or a phosphate-free substitute, then rinse the area with
clear water. Allow the wall to completely dry.
Test the
stains by washing with some warm water and mild detergent.
Ordinary stains will wash out, but mildew won't. If the
stains don't wash out, gently sand them out with 150-grit
sandpaper.
Put on some
rubber gloves and eye protection before you wash walls
with bleach, which will kill the mildew spores. After the
bleach treatment, wash mildew away with some TSP solution
or a phosphate-free substitute, then rinse the area with
clear water. Allow the wall to completely dry.