Yes, there are several types of interior and exterior paints that are formulated to resist mold and mildew growth. The key is to look for paints that contain special additives called antimicrobials or fungicides.
Page Contents
What makes some paints resistant to mold and mildew?
Paints that resist mold and mildew contain antimicrobial additives that prevent mold spores from growing on the surface of the paint film. These additives are designed to kill mold, mildew and other fungi so they cannot spread and reproduce.
Common antimicrobial additives used in paint include:
- Zinc oxide
- Sodium pyrocarbonate
- Potassium sorbate
- Tributyl tin oxide
- Triclosan
When mold spores land on a surface coated with paint containing these additives, the additives disrupt the mold’s cell walls and prevent further growth. This helps stop mold in its tracks.
Where are antimicrobial paints used?
Antimicrobial paints are commonly used in areas prone to high humidity and dampness where mold growth is likely, such as:
- Bathrooms
- Basements
- Laundry rooms
- Kitchens
- Utility rooms
They can be used on interior and exterior surfaces including walls, ceilings, doors, trim, siding, and more. Exterior antimicrobial paints are especially useful in damp climates.
What are some good antimicrobial interior paint brands?
Here are some top antimicrobial interior paint options:
| Brand | Paint Line |
|---|---|
| BEHR | KITCHEN, BATH & TRIM Interior Paint |
| KILZ | KITCHEN & BATH Interior Paint |
| Rust-Oleum | Zinsser PERMA-WHITE Interior Paint |
| PPG | PITTSBURGH Paints & Stains Interior Paint |
| Sherwin-Williams | KITCHEN & BATH Interior Paint |
What are some good exterior antimicrobial paints?
For exterior surfaces, look for the following antimicrobial paint options:
| Brand | Paint Line |
|---|---|
| BEHR | Exterior Premium Plus Ultra Paint |
| Valspar | Exterior Premium Paint |
| Rust-Oleum | Zinsser OUTDOOR Primer |
| KILZ | Exterior MAX Premium Paint |
| PPG | TIMELESS Exterior Paint |
How to use antimicrobial paints effectively
To get the most mold and mildew resistance from antimicrobial paints:
- Properly prepare surfaces – Clean thoroughly and eliminate existing mold growth before painting.
- Apply a primer coat first.
- Apply two finish coats of the antimicrobial paint.
- Follow all application instructions.
- Maintain good ventilation and moisture control in the room.
- Repaint surfaces regularly to maintain protection as the paint film wears over time.
Conclusion
Antimicrobial paints provide an extra level of defense against mold and mildew growth. Look for interior and exterior paints containing additives like zinc oxide, sodium pyrocarbonate, and potassium sorbate to inhibit mold growth. Use a quality antimicrobial paint in moisture-prone areas of a home for long-lasting protection.