Repainting Concrete Block Walls Outside

Select paint appropriate for your outdoor project.

Repainting concrete block walls outside.

During the preparation pay attention to any loose mortar and large cracks. Here s a problem i. Apply an even coat with a wide paintbrush. Scrub the surface with a long handled brush.

Apply evenly in an up and down motion on the wall. Choose paint for your project. Repair any cracks or blemishes in your wall with concrete patch. Paint the entire wall with a thin coat of a concrete sealer or concrete primer.

Allow the concrete surface to dry. Apply the first coat of paint by cutting in around the edges of the wall with a paintbrush plus between each joint of the cinder block. Step 3 prime the block wall. Here s how to update your worn down concrete the correct way.

Clean the concrete wall. Existing paint needs to be scraped and sanded. For exterior projects use a power washer to rid the wall of all dirt and dust. Expect 1 gallon of acrylic latex porch paint to cover up to 400 square feet.

The first step when preparing concrete block walls is pressure washing. It should maintain a pristine stylish appearance despite wet or humid conditions. Step 1 clean the wall. Apply silicate based concrete sealant.

Regardless of the finish and whether the. You will need a paint that is. Scrape any areas with loose or flaking paint and lightly sand using fine 120 grit sandpaper. Paint a concrete block wall in 5 steps.

Any remaining loose paint will need to be removed manually. Prepare a solution of water mixed with any household cleaning chemical. Use a commercial style pressure washer and at least 2500 psi. You want to paint the joints with a paintbrush because it is challenging to paint with a roller and every pore of the cinder block needs to be painted.

Step 5 painting concrete. Step 2 repair the mortar. The best concrete paint for patios will feature an enamel finish that resists mold and mildew growth. Use a long haired paint roller with a long handle.

A suitable spray pattern is the 15 degree tip held 12 inches from the surface. There are two basic types of finish on concrete block smooth and split face. Pour the sealant into a paint pan.