Painting Over Mould: Is It Possible?

You should not paint over mouldy walls or ceilings without addressing the underlying issues first. There are two effective ways to treat mould before repainting, ensuring the health and safety of the environment are not compromised.

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Firstly, applying an oil sealer can effectively kill the mould and create a protective layer for the new paint. It’s crucial to choose a sealer that is environmentally friendly and safe for indoor use, ensuring to follow the preparation process carefully and adhere to safety precautions, such as wearing protective gear. The drying time for the oil sealer is approximately 2 to 3 hours.

Alternatively, an anti-fungus solution can be applied directly to the mouldy area. After waiting 12 hours for the solution to dry, you can then proceed to paint over the treated surface. This method is beneficial for those looking for a long-term solution to mould issues, as it prevents future growth.

When selecting paint, consider using an anti-mould type specifically designed to resist mould recurrence, which is a common issue in humid environments like Singapore. These paints often come with brand recommendations that are known for their effectiveness and durability.

In summary, treating mouldy walls or ceilings requires careful consideration of health implications, environmental factors, and the selection of appropriate materials and methods for a long-term solution. By following these recommendations, you can ensure a safe and mould-free living environment.


It is not recommended to paint over mould without removing it first. Painting over mould may temporarily hide the appearance, but the mould will continue to grow underneath the new paint layer, leading to potential health risks and further damage. Proper mould remediation is essential to ensure a safe and long-lasting solution.

To get rid of mould permanently, follow these steps:

  • Identify and fix the source of moisture.
  • Remove the mould using appropriate cleaning agents.
  • Use oil sealer and paint on surfaces.
  • Maintain proper ventilation and control humidity levels.
  • Regularly inspect and address any water leaks or moisture issues.

To Sum It Up

Hopefully this information didn’t only educate you, but help you to decide to DIY painting or get professional help.

If you have any questions regarding painting your home or work area, do look up our More FAQs for answers.

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