Stop bathroom mildew: the professional approach to painting your walls for lasting protection.
In short: Painter Mauro Henrique demonstrates how to properly apply antimicrobial paint to bathroom walls. Beyond the paint itself, he explains the essential maintenance habits required to keep moisture-related damage at bay in high-humidity spaces.
Achieving a mold-resistant finish requires careful surface preparation. After protecting adjacent tile with painter's tape, walls should be lightly sanded with 220-grit sandpaper while wearing a mask. Removing all sanding dust with a vacuum and a damp rag is critical before applying the antimicrobial paint.
The application process involves cutting in edges with a brush before using a roller for the main wall surfaces. A second coat is necessary after the first has dried. To maintain the finish and prevent future mildew, it is essential to keep the shower vent clean and ensure it runs for at least 30 minutes after every shower. If mildew does appear, it should be cleaned gently using a rag dipped in a water and bleach solution.
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Sources
- Summary by Intellect · source: How to Paint a Mold-Resistant Bathroom | Ask This Old House
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