Painting concrete bricks is an excellent way to refresh the look of your home’s exterior, interior walls, or fireplace. This simple project can dramatically boost curb appeal and protect the brick surface from moisture and wear. A fresh coat of paint provides a clean, modern finish and can transform a dated or worn-out brick facade into a standout feature of your property.
This guide on how to paint concrete bricks will walk you through the entire process, from gathering the right supplies to applying the final coat. By following these steps, you can achieve a professional-looking finish that not only looks great but also extends the life of your concrete bricks. We’ll cover everything you need to know to get the job done right.
Tools and Materials You’ll Need
Before you begin, gather the following tools and materials to ensure a smooth painting process:
- Wire Scrub Brush
- Stiff-bristled Nylon Brush
- Pressure Washer (Optional)
- Trisodium Phosphate (Tsp) or Other Masonry Cleaner
- Bucket and Water
- Gloves and Safety Glasses
- Drop Cloths or Plastic Sheeting
- Painter’s Tape
- Caulk and Caulking Gun
- Masonry or Acrylic Latex Primer
- Elastomeric, Latex, or Masonry Paint
- Paint Tray
- Paint Rollers With Thick Nap (at Least ½-inch)
- Paintbrushes (for Cutting in and Detail Work)
- Paint Sprayer (Optional, for Larger Areas)
8 Simple Step-By-Step Guidelines on How to Paint Concrete Bricks
Step 1: Clean the Brick Surface Thoroughly
The first and most critical step is to ensure the concrete bricks are completely clean. Any dirt, dust, grime, or efflorescence (a white, powdery deposit) will prevent the primer and paint from adhering properly, leading to peeling and chipping down the line. Start by scrubbing the entire surface with a wire brush to remove any loose mortar, flaking paint, or stubborn debris. This initial scrubbing is essential for creating a solid foundation for your paint job.
Once you have removed the loose particles, it’s time for a deep clean. Mix a solution of trisodium phosphate (TSP) or a specialized masonry cleaner with water according to the manufacturer’s instructions. Apply the solution using a stiff-bristled nylon brush, scrubbing vigorously to lift embedded dirt and stains. For larger exterior surfaces, a pressure washer can save significant time and effort. After cleaning, rinse the bricks thoroughly with plain water to remove all cleaning residue, and allow the surface to dry completely, which may take 24-48 hours.
Step 2: Inspect and Repair the Bricks and Mortar
With the surface clean and dry, carefully inspect the bricks and mortar joints for any signs of damage. Look for cracks, chips, or crumbling mortar that could compromise the integrity of your paint job. A sound surface is crucial for a lasting finish, as painting over damaged areas will only temporarily hide the problem. Take your time to examine every part of the wall, paying close attention to areas exposed to the elements or high traffic.
Use a caulking gun to fill any small cracks in the bricks or mortar with an acrylic or siliconized acrylic caulk. For larger gaps or areas with significant deterioration, you may need to use a masonry patching compound or repoint the mortar joints. Apply the repair materials as directed, smoothing them out to blend with the surrounding surface. Allow all repairs to cure completely before moving on to the next step. This curing time is vital for ensuring the patches are hard and stable.
Step 3: Protect Surrounding Areas
Before you open any cans of primer or paint, you need to protect the areas you don’t want to get paint on. This preparation will save you a lot of cleanup time later and ensure you get clean, professional-looking edges. Use painter’s tape to mask off trim, windows, doors, and any adjacent surfaces. Press the tape down firmly to create a tight seal that prevents paint from seeping underneath.
For larger areas like floors, landscaping, or furniture, use drop cloths or plastic sheeting. Secure the sheeting with tape to keep it from shifting while you work. If you are painting outside, be mindful of the wind, which can blow lightweight plastic sheeting around. Taking a few extra minutes to thoroughly cover and protect your surroundings is a small investment that pays off with a much neater final result and a hassle-free cleanup process.
Step 4: Apply a Masonry Primer
Priming is a non-negotiable step when painting concrete bricks. Brick is a highly porous material that will absorb a significant amount of paint if not properly sealed. A quality masonry primer creates a uniform, sealed surface that prevents the topcoat from soaking in, ensuring better coverage and a more even color. It also helps the paint adhere strongly to the brick, improving durability and longevity. Choose a latex or acrylic primer specifically designed for masonry surfaces.
Apply a single, even coat of primer to the entire brick surface using a roller with a thick nap (at least ½-inch). The thick nap will help you get the primer into the texture of the bricks and the mortar joints. For corners and edges, use a paintbrush to “cut in.” If you’re using a paint sprayer, apply the primer in long, overlapping strokes for consistent coverage. Allow the primer to dry completely according to the manufacturer’s instructions, which is typically several hours.
Step 5: Choose the Right Paint
Selecting the correct paint is just as important as the prep work. For concrete bricks, you need a paint that can handle the specific challenges of masonry, including its porous nature and high pH levels. The best options are elastomeric, 100% acrylic latex, or specialized masonry paint. Elastomeric paint is an excellent choice for exteriors because it is thick, durable, and can bridge small cracks, providing a waterproof barrier against moisture.
Acrylic latex paint is another great option, offering good adhesion, flexibility, and breathability, which allows moisture trapped within the bricks to escape without causing the paint to blister or peel. Masonry paint is specifically formulated to bond with brick and concrete, providing excellent durability and resistance to alkalinity. Whichever you choose, opt for a high-quality paint, as it will provide better coverage and last longer than cheaper alternatives.
Step 6: Apply the First Coat of Paint
Once the primer is fully dry, you are ready to apply the first coat of paint. Begin by stirring the paint thoroughly to ensure the color is consistent. Just as you did with the primer, use a paintbrush to cut in along the edges, trim, and corners where a roller can’t reach. This creates a clean border and ensures full coverage in tight spots. Work in small, manageable sections to maintain a wet edge, which helps prevent noticeable lap marks.
Next, use a thick-napped roller to apply paint to the main surface. Load the roller evenly with paint and apply it in a “W” or “N” pattern to distribute the paint, then fill in the pattern with even, overlapping strokes. Make sure to work the paint into the mortar joints and the texture of the bricks for complete coverage. If you are using a paint sprayer, maintain a consistent distance from the wall and use smooth, sweeping motions.
Step 7: Apply the Second Coat of Paint
Although a single coat might look sufficient, a second coat is highly recommended for durability, full color depth, and a uniform finish. The first coat acts as a base, but the second coat provides the true color and a protective layer that will stand up to wear and tear. Before applying the second coat, allow the first coat to dry completely. Check the paint can for the recommended recoat time, which can vary based on the type of paint and environmental conditions like temperature and humidity.
Apply the second coat using the same technique you used for the first. Cut in with a brush first, then use a roller or sprayer for the larger areas. The second coat should go on more smoothly and require less paint since the porous surface has already been sealed by the primer and the first coat. Pay attention to any areas that look thin or uneven and apply a little extra paint to ensure a consistent, professional-looking finish across the entire surface.
Step 8: Curing, Cleanup, and Final Touches
After applying the final coat, allow the paint to cure fully. While the paint may feel dry to the touch within a few hours, the curing process can take several days or even weeks. During this time, the paint is hardening and developing its final durability and resistance to moisture and scuffs. Avoid placing items against the painted surface or scrubbing it until it has completely cured.
While the paint is drying, carefully remove the painter’s tape. It’s best to do this when the paint is still slightly tacky but not wet, as this helps create a sharp line without peeling the fresh paint. Clean your brushes, rollers, and paint tray with soap and water for latex paints or mineral spirits for oil-based products. Fold up your drop cloths and dispose of any used materials properly. Once everything is clean and the paint has cured, you can step back and admire your beautifully transformed brick surface.
Following these steps on how to paint concrete bricks, you can achieve a professional-looking finish that will enhance the appearance of your home. However, painting concrete bricks is not just about aesthetics; it also offers several practical benefits.
Maintenance After Painting
Maintaining your newly painted concrete bricks is straightforward and will keep them looking fresh for years. Periodically inspect the surface for any signs of chipping, peeling, or cracking, especially in areas exposed to harsh weather.
Address any minor touch-ups promptly to prevent moisture from getting behind the paint. Clean the walls annually with a mild detergent and a soft-bristled brush, then rinse with water. Avoid using a pressure washer, as the high-pressure spray can damage the paint.
How Much Will It Cost?
The cost of painting concrete bricks can vary widely based on several factors. The primary expenses are materials and labor. If you do the project yourself, your main costs will be for cleaner, primer, paint, and supplies like brushes and rollers. High-quality masonry paint can range from $40 to $70 per gallon. The total cost will depend on the size of the area you are painting. Hiring a professional painter will significantly increase the cost, as labor can account for 70-80% of the total price, but it also ensures a high-quality, long-lasting result.
Frequently Asked Questions
Q1: Should You Paint Concrete Bricks?
A1: Painting concrete bricks is a great idea if you want to update their look, protect the surface, or cover up stains and discoloration. It provides a protective barrier against moisture, which can help prevent water damage and deterioration. However, it’s a long-term commitment, as painted brick requires regular maintenance and will eventually need to be repainted.
Q2: Is It Better to Spray or Roll Paint on Brick?
A2: Both methods have their advantages. A paint sprayer offers faster coverage, especially for large, textured surfaces, and can provide a very smooth finish. However, it requires more prep work to prevent overspray. Rolling is more controlled, uses less paint, and is great for smaller projects. For the best results, many people use a combination: spraying the large areas and using a roller to work the paint into the brick texture (a technique called back-rolling).
Q3: What Kind of Paint Lasts Longest on Brick?
A3: Elastomeric and 100% acrylic latex paints are the most durable and long-lasting options for exterior concrete bricks. Elastomeric paint is extremely thick, flexible, and waterproof, making it ideal for protecting brick from the elements. High-quality acrylic latex paint is also an excellent choice because it is breathable, allowing moisture to escape while still providing strong adhesion and color retention.
Q4: How Long Does Paint Last on Exterior Brick?
A4: With proper preparation and high-quality paint, a good paint job on exterior brick can last anywhere from 5 to 10 years, or even longer in some cases. The lifespan depends on factors like the local climate, the amount of direct sun and moisture exposure, and the quality of the prep work and materials used. Regular cleaning and prompt touch-ups can help extend the life of the paint job.
Conclusion
Painting concrete bricks is a rewarding DIY project that can completely change the appearance of your space. While it requires careful preparation and attention to detail, the results are well worth the effort.
By thoroughly cleaning and repairing the surface, using the right primer and paint, and applying multiple coats, you can achieve a durable and beautiful finish. This project not only enhances your home’s aesthetic but also adds a valuable layer of protection to your brickwork for years to come. Thanks for reading this guide on how to paint concrete bricks.