How to Paint Bathroom Walls for a Mould-Free Finish 💧
Bathrooms face one big challenge: moisture.
Steam, condensation and poor ventilation can quickly cause mould, peeling paint, and discolouration.
The good news? With the right prep, paint and technique, you can create a beautiful, long-lasting, mould-resistant finish that stays fresh for years.

1. Start with a Clean Surface 🧽
Before painting, remove any existing mould or mildew.
- Mix one part bleach to three parts water, wipe down affected areas.
- Rinse thoroughly and let the wall dry completely.
- Use sugar soap or mild detergent for general cleaning.
💡 Skipping this step means mould spores will grow back under the paint — no matter how good the product is.
2. Repair & Sand the Surface 🔧
Check for peeling paint, cracks or gaps near tiles.
- Scrape away any flaking sections.
- Patch holes or cracks with mould-resistant filler.
- Sand lightly to create a smooth, even surface.
3. Apply a High-Quality Primer 🎨
A primer helps seal the surface and improves adhesion.
Choose a moisture- and mildew-resistant primer for bathrooms.
🖌️ Recommended:
Benjamin Moore® Fresh Start® High-Hiding Primer — excellent coverage and protection against humidity.
4. Choose the Right Bathroom Paint 💧
Regular wall paint won’t survive bathroom humidity.
You need a mould-resistant, washable, and moisture-tolerant formula.
🌿 Best Choice:
Benjamin Moore® Aura® Bath & Spa – specially designed for humid environments.
✅ Mildew-resistant finish
✅ Low VOC & low odour
✅ Excellent adhesion even on steamed-up walls
✅ Beautiful matte finish that resists peeling and fading
5. Ensure Proper Ventilation 🌬️
Even the best paint needs help.
- Keep the exhaust fan running during and after showers.
- Open windows regularly to reduce humidity.
- Wipe down condensation from walls when possible.
💡 A well-ventilated bathroom not only prevents mould but also extends the life of your paint job.
6. Allow Enough Drying Time ⏱️
Humidity can slow drying dramatically.
- Wait at least 2–4 hours between coats.
- Avoid long hot showers for 24 hours after the final coat.
Final Thoughts
Painting a bathroom isn’t just about looks — it’s about protection.
By cleaning properly, priming well, and using the right paint, you’ll achieve a mould-free, durable finish that keeps your bathroom looking fresh for years.
At My Paint & Co, we stock Benjamin Moore Aura Bath & Spa — Australia’s premium choice for bathroom and wet-area painting.
✨ Visit us in-store at Mitchell, ACT or shop online today.