Which Kind Of Paint Should I Use On My Peeling Block Walls?

Painting concrete block walls involves removing dust, dirt, efflorescence, and loose or peeling paint. There are several types of outdoor concrete wall paint available, including elastomeric, epoxy, and acrylic. Elastomeric paints are highly flexible and can bridge cracks, while 100% acrylic paint is a second-best option. To achieve the highest durability, apply two coats. Epoxy paint is ideal for outdoor concrete surfaces, as it is durable and long-lasting.

For masonry surfaces, use concrete and brick-specific primers and sealers. Acrylic paint is a subtype of latex paint that offers durability and resistance to environmental factors like UV rays and moisture. Modern acrylic latex paint is the best choice for exterior painting due to its durability, flexibility, and ease of use. It resists fading, peeling, and blistering more successfully than oil-based paint.

Power wash top coats with latex paint like Superpaint without primer needed. Elastomeric is suitable for structures with water or moisture issues, while Peel Bond is a bonding primer for surfaces that may not stick to paint. Proper, breathable, masonry exterior paint is essential for long-term protection. Paint must be applied with a primer coat first, and polyurethane, epoxy, and acrylic primers are all suitable for concrete.

Sherwin Williams’ Loxon® family of masonry products is recommended for proper brick painting. DRYLOK Latex Concrete Floor Paint is a paint-and-primer solution specifically formulated to beautify and protect both interior and exterior concrete. For exterior walls, use a good-quality masonry paint that can withstand weather conditions like wind-driven rain. If planning to paint exterior concrete walls and fences, use an exterior acrylic paint that will hold up to ultraviolet light and harsh weather.

How do you paint bare concrete block walls?

Cinder blocks are a versatile building material that can be painted to match the color scheme of a home. To paint them, use a latex acrylic-based bonding and filling primer and apply it with a nap roller. Allow the block to dry for 24 hours, then apply a high-quality acrylic latex paint in any color. Allow the paint to dry for 12 hours before adding a second coat. If the cinder blocks have been exposed to water through a leak, they may develop a white powder coating on the outside. Remove the deposits with cleaner and a scrub brush, and allow the cleaned areas to dry completely before washing the walls further.

Can you paint straight onto concrete blocks?

Priming is crucial for successful painting cinder blocks, as it creates a uniform topcoat free of pores. Use concrete and masonry bonding primer, not wood or drywall primer or self-priming paint. After priming, use acrylic-latex paint tinted to your choice for interior and exterior surfaces. For highly moist surfaces, purchase elastomeric paint for basement cinder blocks. Apply primer or paint only in temperatures between 50 and 90° F and ensure the blocks are completely dry before painting.

What paint is best for exterior walls?

Acrylic paints are a versatile and durable option for exterior wall surfaces, offering excellent color retention, weather resistance, and ease of application.

Do you need special paint for concrete blocks?

Priming is crucial for successful painting cinder blocks, as it creates a uniform topcoat free of pores. Use concrete and masonry bonding primer, not wood or drywall primer or self-priming paint. After priming, use acrylic-latex paint tinted to your choice for interior and exterior surfaces. For highly moist surfaces, purchase elastomeric paint for basement cinder blocks. Apply primer or paint only in temperatures between 50 and 90° F and ensure the blocks are completely dry before painting.

Do block walls need primer before painting?

Priming is crucial for successful painting cinder blocks, creating a uniform topcoat free of pores. Use concrete and masonry bonding primer, not wood or drywall primer or self-priming paint. After priming, use acrylic-latex paint tinted to your choice for interior and exterior surfaces. For highly moist surfaces, purchase elastomeric paint, which is durable and elastic. Avoid using wood, drywall primer, or self-priming paint.

What is the best paint for bare block walls?

Masonry paint is an exterior paint suitable for exterior walls, including brick, concrete, and stone. It can last from 5 to 25+ years, depending on the type of paint used. To paint breeze blocks, start by preparing the surface by checking for cracks or holes, filling them with a high-quality interior or exterior filler, and removing loose parts. Work the filler up and down in straight lines until the hole is slightly overfilled, allowing for shrinkage as it dries.

Once the filler is completely dry, sand the surface down with sandpaper to create a smooth surface ready for paint. This step ensures the paint remains adhered to the surface even during harsh weathering.

Can I paint over a peeling wall?

To ensure proper adhesion, remove peeling paint before applying a fresh coat. Use a scraper or 100-grit sandpaper to remove loose or cracked paint from damaged areas. Prep uncoated and previously coated concrete surfaces with the 9 in. x 1/4 in. Polyester Adhesive Roller Cover, available in-store at Home Depot. This hard texture is ideal for applying adhesives to smooth surfaces and can be used for stippling and applying sand paints.

What kind of paint peels off walls?

To avoid paint peeling, avoid using multiple coats on the same surface, as different paint types may not bond well. Oil-based paints may not adhere to latex-based paints, and vice versa. Choose a paint with more pigment, resin, and fewer solvents to avoid peeling. Low-quality paint brands may lack flexibility and adhesion, leading to peeling after a short period. Choose paints designed for different surfaces, such as wooden, plastic, metallic, or concrete, and use the correct primer for each. These factors can lead to paint peeling and other issues.

What kind of paint do you use on exterior block walls?

To paint a cinder block fence, use high-quality acrylic latex paint for its longevity and smoothness. Visit a local paint store to get expert recommendations on paint and primer. Pressure wash the wall to ensure it’s clean enough for paint to stick. Cinder blocks produce efflorescence, a white, powdery stain, which can cause fading, peeling, and chalky appearance. Ensure the wall is clean enough for paint to stick. Using the right type of paint and pressure washing can help ensure the job is done correctly.

How do you paint a flaking exterior wall?

Flaking exterior wall paint is a common issue in old houses and recent paint jobs. To remove the cracked layer, treat the wall, and then repaint. However, repairing flaking paint is not possible. A common method is to use a high-pressure washer to remove the paint, or use a stripper or décapant to rub the facade. After allowing the stripper to soak in, spray the entire wall with the pressure washer. This is a dirty job, so work clothes may be helpful. If the paint is still peeling, paint over it. If the previous steps are followed, you can paint the exterior wall using any current facade paint.

How do you paint a peeling concrete wall?

Before painting concrete, remove any peeling paint and strip it back until a firm edge is achieved. Clean the surface thoroughly, especially exterior surfaces, as dirt can cause paint to not adhere to the concrete and cause it to fail. Use a power washer or hose pipe to clean the wall, or a stiff brush and hot soapy water if not available. Scrub the wall thoroughly to remove ingrained dirt. Apply a fungicidal cleaner like Emperor Exterior Cleaner to kill any organic growth and let it dry for at least 2 hours.

Mask up the wall with masking tape along edges and place dust sheets on the floor to prevent paint splatter. A primer is applied before paint to prevent the paint from soaking into the surface and provide added adhesion. If painting a bare concrete wall, apply it before applying paint, but not if it has been previously painted.

In summary, cleaning concrete surfaces is crucial for achieving neat results and reducing cleanup after the painting process. A primer is necessary to prevent paint from soaking into the surface and provide added adhesion.