Can You Paint Hardie Backer Board – What You Need to Know

Are you looking to add a pop of color to your tile project? And asking yourself – can you paint Hardie Backer board?  

Hardie Backer board is not designed to be painted. However, it is possible to paint this board if desired. The ability of this board to hold paint depends on some factors such as the paint, the preparation, and the application method.

In this guide, we will explore some more things that you need to know when you’re planning to paint your Hardie Backer boards. So, whether you’re a DIY enthusiast or a professional contractor, keep reading to learn more.

What Is Hardie Backer Board?

Hardie Backer board is a type of cement board used as an underlayment for tiles in areas such as bathrooms, kitchens, and floors. It is made of cement, sand, and cellulose fibers, which make it strong and durable.

It helps to prevent moisture damage and provides a stable surface for the tiles to adhere to. It is an excellent option for homeowners who want to ensure the longevity and stability of their tile installations.

It is often used as a substitute for traditional plywood or drywall underlayment in areas where moisture is present. This board is available in different thicknesses, ranging from 1/4 inch to 1/2 inch, depending on the application. The boards come in standard 3 foot by 5 foot sheets, making it easy to transport and install.

Can You Paint Hardie Backer Board?

Hardie Backer board is a cement-based product commonly used as a substrate for tile in wet areas. While it is okay to paint this board, it is not typically recommended as it is primarily designed to be covered with tile or another type of finish.

If you do decide to paint this board, it is essential to use the correct type of paint and preparation techniques to ensure a long-lasting and durable finish. You should use a high-quality, 100% acrylic paint that is suitable for use on masonry surfaces.

Before painting, the board should be cleaned thoroughly with soap and water, and any loose or flaking areas should be repaired. A primer designed for masonry surfaces should be applied to ensure proper adhesion of the paint.

Note that painting Hardie board will not make it completely waterproof, and it may not be as durable as other finish options such as tile or stone. Therefore, it may not be the best decision in areas that will be exposed to high moisture or wear and tear.

Also, take a look on the following section to understand why you think again before painting HardieBacker board.

First, this board is not designed to be a finished surface, and it does not have the same properties as other materials that are commonly painted, such as drywall or wood. This board is porous and has a rough texture, which makes it difficult to achieve a smooth, even finish when painting.

Second, the board is designed to be water-resistant, and painting it can compromise its ability to resist moisture. Painting this board can create a surface that is less resistant to water penetration and can lead to problems such as mold growth or tile failure.

Finally, most tile installations are done in areas where moisture is present, and using paint on HardieBacker board can create a surface that is less resistant to water, which can lead to damage over time.

Can You Paint Hardie Board a Different Color?

Hardie Board can be painted a different color. This board, also known as fiber cement siding, is a durable and popular building material. It is designed to last for many years with minimal maintenance, but it can be painted if you want to change its color.

To paint it, you need to follow a specific process to ensure that the paint adheres properly. The basic steps are –

• Clean the surface of the board thoroughly to remove any dirt, debris, or loose paint.
• Sand any rough areas and feather out any sharp edges with fine-grit sandpaper.
• Apply a high-quality exterior primer to the entire surface of the board. Be sure to choose a primer that is compatible with fiber cement siding.
• Allow the primer to dry completely before applying the paint. Apply one or two coats of high-quality exterior paint to the primed surface, using a paintbrush or a sprayer.
• Allow the paint to dry completely before applying a second coat, if necessary.

Should You Paint Hardie Backer Board before Install?

It is not necessary to paint Hardie Board before installation. This board is designed to be installed as an unfinished product and then painted after installation. In fact, painting the board before installation can actually lead to problems down the road, such as peeling or cracking of the paint due to the stress caused by the installation process.

Additionally, painting before installation can make it more difficult to install properly. The paint can create a slippery surface that can cause the boards to slide out of place during installation. It can also make it more difficult to achieve a tight fit between the boards, which can compromise the integrity of the siding.

If you really want to change color of your Hardie Backer board, it is advised to install board first and then paint it after installation. This will ensure that the siding is properly installed and that the paint adheres correctly to the surface.

Can You Spray Paint Hardie Board?

HardieBacker board is a popular brand of fiber cement siding that is known for its durability and resistance to weathering. Experts recommend using a 100% acrylic topcoat that is specifically designed for use with their products.

Before spray painting, make sure the surface is clean and free of dust and debris. It’s also important to apply the paint in the right weather conditions, typically between 40 and 90 degrees Fahrenheit with low humidity.

When spraying, use a high-quality paint sprayer and be sure to apply the paint evenly in thin layers. It’s also a good idea to test a small area first to ensure the paint adheres properly and looks the way you want it to.

What Kind of Paint Do You Use for Hardie Board?

When painting Hardie board, it’s wise to choose a high-quality exterior paint that can withstand the elements and adhere well to the surface. For this board, you can choose paint from the options below.

100% Acrylic Paint: Acrylic paint is the most popular choice for Hardie board due to its excellent adhesion, durability, and color retention. It’s also resistant to fading, cracking, and peeling, making it an ideal option for exterior applications.

Elastomeric Paint: This type of paint is highly flexible and can stretch up to 600%. It is an excellent choice for the board that expands and contracts with changing temperatures.

Urethane-Modified Acrylic Paint: This paint offers the benefits of both acrylic and urethane paints, providing top adhesion, durability, and weather resistance. It is also highly resistant to cracking, fading, and mildew growth.

How Well Does Hardie Backer Board Hold Paint?

If you plan to paint the board, clean the surface thoroughly to remove any dirt. You may also need to prime the surface with a bonding primer specifically designed for use on cement-based substrates before applying the paint.

This paint still may not hold paint as other surfaces such as drywall or wood. This is because Hardie board is a cement-based material that is porous and has a rough texture, which can make it difficult for paint to adhere evenly.

Before painting, it may be a good idea to consult with a professional painter or tile installer to determine the best approach for your specific project.  

Final Verdict

Hardie Backer board is a popular choice for tiling and flooring applications. You can paint this board, but experts don’t recommend painting it and may not yield the best results. If you are considering painting the board, it is important to properly prepare the surface and use the appropriate materials for best results.