Can Paint Get Moldy?

If you have some paint cans left over after you finish your painting job, you may want to save some for the next time you need to paint. However, some household items can get moldy with age, and you may be wondering if that includes paint.

Mold growing on your paint supply can waste your money because you will have to throw out your partially used cans. It can also cause serious health problems. Mold spores can cause respiratory problems such as a runny nose or cough. If someone in your household has allergies or asthma, mold can worsen the flare-ups of their chronic condition.

Paint can grow mold. Yet, you can see signs of mold and prevent it from forming in the first place.

What To Do If You Have Mold

Mold can grow in opened paint cans and even on paint already applied to your wall.

If you suspect that your paint has developed mold, the first step is to confirm that this is the case.

Mold causes paint to change color, and it may develop black or brown spots. A wall with mold on its paint will have patches that feel dirty to the touch.

Do not use paint that has mold growing in unused paint tins. Look up local regulations regarding paint disposal and throw it away. If you notice mold growing on your walls, call a professional mold removal company.

Preventing Mold From Developing on Paint

The best way to deal with mold is to avoid developing it in the first place. Mold thrives in damp, warm environments. When storing paint cans, be sure that they are properly sealed and in a cool, dry place.

Mold in wall paint is usually caused by a leak or high humidity in the room. Before painting, check that your room has is not damp and has adequate ventilation.

If you are painting in a damp environment, choose mold-resistant paint. Water-based paints and paints containing zinc oxide are more resistant to mold. In contrast, oil-based paints have a higher risk of developing spores.

Some manufacturers add mold-resistant chemicals to their paints. However, if your paint is not mold-resistant already, you can add a mold inhibitor yourself.


Paint can grow mold, so if you find the paint on your walls is moldy, call a professional removal service.

Additionally, if you notice mold growing in paint cans, throw them away immediately.

Prevent paint from developing mold by storing it in a cool, dry place or using mold-resistant paints.

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