Mold resistant paint

Mold resistant paint

Mold is unsightly and can make you sick, which is why it’s essential to take preventive steps to minimize the chances of such fungi forming. Did you know that painting walls and ceilings of high humidity areas with mold-resistant paint will drastically reduce the chances of mold formation? This type of paint, which is often referred to as antimicrobial paint, is becoming more and more commonly used as an efficient deterrent.

Topics Covered

  • What is mold resistant paint and does it work?
  • The benefits of using mold-resistant paint
  • Best mold resistant paint
    • KILZ 2 All-Purpose Primer
    • Rust-Oleum perma-white
    • KILZ color change stain blocking ceiling paint
    • Paint-Guard mold prevention paint additive
  • How to apply mold-resistant paint

What is mold-resistant paint and does it work?

Mold-resistant paint is a type of paint specifically formulated to inhibit the growth of mold and mildew on surfaces. It contains additives that act as biocides, which prevents mold spores from germinating and spreading.

And although mold-resistant paint can be highly-effective in reducing mold growth, it is important to note that it is not a guaranteed solution for eliminating mold issues entirely, because proper moisture management, such as fixing leaks, reducing humidity, and promoting ventilation, is still vital for preventing mold.

The benefits of using mold-resistant paint

Using mold-resistant paint offers several benefits in terms of mold prevention and overall indoor air quality. Here are some key benefits of using mold-resistant paint:

Long-term mold prevention

Mold-resistant paint creates a protective barrier on painted surfaces that inhibits the growth of mold and mildew. This helps prevent the onset of mold-related issues, and reduces the need for frequent cleaning, maintenance, and potential mold remediation.

Improved indoor air quality

Mold spores contribute to poor indoor air quality, leading to respiratory problems and allergies. By inhibiting mold growth, mold-resistant paint helps maintain a healthier indoor environment with cleaner air.

Surface protection

In addition to preventing mold, the paint provides a protective coating on surfaces. It can resist moisture absorption, staining, and the formation of unsightly mold stains, thus helping to maintain the appearance and integrity of the painted surfaces.

Cost savings in mold remediation

Mold infestations can be costly to remediate, as they sometimes require professional services and can potentially cause damage to structures and belongings. By proactively using mold-resistant paint, you can reduce the risk of extensive mold growth, thus saving on expensive remediation and repair costs.

Easy maintenance

Mold-resistant paint typically has easy-to-clean properties. In case of minor mold spots or stains, they can often be easily wiped or scrubbed away without requiring harsh chemicals or great effort.


The paint is available in a variety of colors and finishes, providing flexibility and options to match your aesthetic preferences and design choices. You can enjoy the benefits of mold prevention without compromising on the visual appeal of your space.

Peace of mind

Using mold-resistant paint gives homeowners and occupants peace of mind, knowing that they have taken proactive steps to prevent mold-related issues. It adds an important extra layer of protection and contributes to a healthier living environment.

The best mold-resistant paint

Choose your paint carefully. What you want is something that can effectively seal porous surfaces, cover hard to remove stains, offers proper adhesion, and comes with at least a 5-year mold-free guarantee. Below are four high-quality products that meet all of these requirements.

KILZ 2 All-Purpose Primer

KILZ 2 All-Purpose Primer

A reliable primer is essential when it comes to achieving a flawless paint finish. The KILZ 2 All-Purpose Primer, available in a convenient 1-gallon can, is designed to deliver impressive results for both interior and exterior surfaces.

With its ability to block mild to medium stains, hide previous colors, and provide a mildew-resistant film, this primer-sealer-stainblocker offers a versatile solution for various painting projects.

One of the best features of the KILZ 2 All-Purpose Primer is its exceptional adhesion and sealing properties. It effectively blocks mild to medium staining caused by water, grease, ink, pencil, and felt marker. This makes it an ideal choice for surfaces that require thorough coverage and a smooth base for paint application. Whether you’re working with drywall, paneling, stucco, masonry, or wood, this primer ensures a strong bond between the surface and the paint.

With its water-based latex formulation, the KILZ 2 Primer is easy to use and clean up. It is suitable for both interior and exterior applications, making it a versatile choice for a wide range of projects. From brick to properly prepared glossy surfaces, this primer/sealer/stainblocker is designed to handle various substrates, offering reliable performance and consistent results.

Coverage is another area where the KILZ 2 Primer excels. With approximately 300-400 square feet of coverage per gallon, this product goes a long way, allowing you to handle larger areas without the need for frequent replenishment. The efficient coverage also contributes to cost savings, as it reduces the amount of paint required for full coverage.

Another great thing about the KILZ 2 Primer is its quick drying time. Within 30 minutes, it dries to the touch, allowing for faster project completion. Recoating can be done after just one hour, minimizing downtime and enabling efficient progress.

Rust-Oleum perma-white mold-proof interior paint

Rust-Oleum perma-white mold-proof interior paint

The high-quality Rust-oleum perma-white mold resistant interior paint comes in a range of colors and offers a beautiful semi-gloss finish.

It’s water-based, self-priming, odor-free, moisture as well as stain-resistant, and, most importantly, comes with an unbeatable 5-year mold and mildew free guarantee.

One important thing to keep in mind is that if you use this product in the bathroom, do not use the shower or bath for the first 24 hours after painting. Also, do not scrub or wash the walls for seven days, either. All in all, it’s an excellent product and one of the highest quality mold resistant paints on the market that will leave your walls with a beautiful eggshell finish.

KILZ color change stain blocking interior ceiling paint

KILZ color change stain blocking interior mold-resistant ceiling paint

The KILZ Stainblocking Ceiling Paint is a remarkable mold-resistant paint that combines stain-blocking technology with a coverage/dry time indicator, making it an excellent choice for any room. This interior paint is specifically designed for ceilings and offers a range of features that contribute to its superior performance.

One of the best features of this ceiling paint is its advanced formula, which provides exceptional stain-blocking properties. It effectively covers water stains, color changes, and helps brighten drab ceilings. Also, the splatter-resistant formula ensures easy application with low odor.

It also has a color-changing feature. When applied, it rolls on with a subtle pink color, making it easy to see which areas have been painted. As it dries, the paint transitions to a bright white shade in under an hour, providing a clear visual indication of the completed areas. This is particularly helpful for ensuring even coverage and avoiding missed spots.

This mold-resistant ceiling paint is suitable for use on all interior ceilings. It can be applied using a quality nylon/polyester brush, a 3/8″-1/2″ nap roller (depending on the surface texture), or with a sprayer for larger areas. Multiple coats may be necessary for complete hide, depending on the severity of stains.

One gallon covers approximately 250 square feet on porous surfaces and up to 400 square feet on smooth, non-porous surfaces.

Additionally, the quick drying time of this ceiling paint is impressive. It dries to the touch within one hour, allowing for recoating or other activities in a relatively short amount of time -but for maximum stain-blocking effectiveness, it is recommended to re-coat after four hours.

Paint-Guard mold prevention paint additive

Paint-Guard mold prevention paint additive

The Paint-Guard Mold and Mildew Defense Paint Additive offers a powerful solution for defending painted surfaces against mold and mildew growth.

This additive is designed to be mixed with water-based paint, making it incredibly easy to use and incorporate into your painting projects. With its long-lasting protection, Paint-Guard helps maintain the integrity of your painted surfaces.

One of the strengths of Paint-Guard is its proven effectiveness against black mold. It has passed the rigorous D5590 standard for paint film fungal defacement, even when subjected to combined strains of mold and mildew spores. Additionally, it meets the E2180 standard for evaluating antimicrobial agents in polymeric materials, further demonstrating its effectiveness. Paint-Guard has shown efficacy against a wide range of odor-causing bacteria, offering a fully comprehensive defense.

The product’s effectiveness against mold is exemplified in the petri dish test. Samples coated with paint treated with Paint-Guard showed no growth of black mold, while samples coated with paint alone had mold growth. This visual evidence confirms the product’s ability to inhibit mold and protect the painted surface from degradation caused by mold and mildew.

In addition to its mold and mildew defense properties, Paint-Guard offers a refreshing lemongrass scent. This adds a pleasant touch to the painting process, providing a break from typical paint fumes while stirring the additive into your gallon of paint.

Paint-Guard is designed to have no impact on the color or texture of your paint. It utilizes a clear zinc oxide that absorbs light, ensuring that the liquid’s white appearance does not affect the final paint result. This feature allows you to maintain the desired color and texture of your paint while enjoying the added benefits of mold and mildew resistance.

Another notable aspect of Paint-Guard is its commitment to being created, sourced, and manufactured in the USA. By supporting this product, you are also supporting American jobs and contributing to the domestic manufacturing industry.

How to apply mold-resistant paint

In the following section, we will show how to use mold-resistant paint to surface areas that need protection. The best places to paint would be vulnerable areas, such as basements, bathroom ceilings, drywall, and anywhere else you have been having mold problems or high humidity.

Step 1: Prepare the Surface

Clean the surface: Remove any dirt, dust, or grease from the surface using a mild detergent and water. Scrub off any existing mold or mildew using a mold cleaner or a mixture of bleach and water.

Repair any damage: Fill in cracks, holes, or damaged areas with the appropriate patching materials. Ensure the surface is smooth and even before proceeding.

Step 2: Gather Materials and Tools

Mold-resistant paint: Purchase high-quality mold-resistant paint suitable for your specific needs (interior or exterior).

Paintbrushes, rollers, or sprayers: Choose the appropriate tools based on the paint type and the surface you are painting.

Drop cloths or plastic sheets: Protect the surrounding area from accidental spills or splatters.

Step 3: Prime (if necessary)

Check if the surface requires a primer. Some mold-resistant paints may recommend using a specific primer for better adhesion or to cover stains. Follow the manufacturer’s instructions for priming, if applicable.

Step 4: Apply the Mold-Resistant Paint

Stir the paint: Thoroughly mix the paint using a stir stick to ensure proper dispersion of the additives.

Start with the edges: Use a brush to cut in around corners, edges, and trim.

Roll or brush the surface: For larger areas, use a roller or brush to apply the paint in even, overlapping strokes. Follow the recommended coverage and thickness as specified by the paint manufacturer.

Work in small sections: Divide the surface into manageable sections, ensuring each section is completed before moving on to the next.

Maintain a consistent application: Apply the paint evenly, avoiding excessive thickness or drips. Follow the recommended drying time between coats, if multiple coats are needed.

Step 5: Allow the Paint to Dry

Follow the manufacturer’s instructions for the recommended drying time. Ensure the painted surface is completely dry before exposing it to moisture or humidity.

Step 6: Clean Up and Maintenance

Clean the tools: Clean brushes, rollers, or sprayers with soap and water immediately after use.

Remove drop cloths or plastic sheets: Dispose of any protective coverings used during the painting process.

Perform regular maintenance: Inspect the painted surface periodically for any signs of mold or damage. Promptly address any issues using appropriate cleaning methods recommended by the paint manufacturer.

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