there has been water leaking through the bathroom ceiling. the leak is fixed now I put kills on the stain but it came back any advice on how to cover this.
What is your ceiling composed of? How large of stained area?
My guess is either the leak is not fully stopped or there was just a lot of moisture above the ceiling and it all needs to dry out before any stains stop forming.
Be sure you are using a stain blocking primer. It should say stain blocker on the can.
the ceiling is squares made of a composite (cardboard) yes it is dry. and the stain blocker does not seem to be working. I was told to wait a week and stain block again so I will try that.
Zinser Perma-white worked great for me. Had a bad roof leak, ceiling fell in, not a stain or mold in sight. Check what stain primer goes best with that product. May need to be oil-based.
The water stains are the hardest to remove. Best option is get the leakage fixed before trying anything. Once the leakage is fixed, paint the walls.
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