How Do You Get Rid of Mold Growing on the Bathroom Wall Before Painting?

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Address mold prior to painting a bathroom wall by removing any visible spores, sealing in remaining mold and adding mold-deterring chemicals or fixtures. Because invisible mold spores can spread throughout the room, apply this process throughout the bathroom even if the mold is not visible. Use safety glasses, rubber gloves and a ventilator mask.

  1. Ventilate the area

    Ventilate the bathroom as well as possible, either by opening windows or running a functioning and effective bathroom exhaust fan.

  2. Remove fixtures and repair leaks

    Take out and wash any removable fixtures, such as towel racks and hooks. Look for and repair any mold-causing leaks.

  3. Mix borax and white vinegar solution

    In 2 cups of very warm to hot water, mix together 2 tablespoons of borax and ¼ cup of white vinegar.

  4. Apply borax solution

    Scrub or spray all bathroom surfaces, including the ceiling and floors, with the borax and vinegar solution.

  5. Apply a mold-sealing primer

    After sanding and preparing the walls, apply a mold-sealing primer to prevent any remaining spores from spreading.

  6. Use an anti-mildew paint

    If possible, use an anti-mildew paint on the walls to stop mold from returning. To prevent new growths, install a dehumidifier to prevent condensation and enhance ventilation.