Repainting Concrete Block Walls Outside

Use a commercial style pressure washer and at least 2500 psi.

Repainting concrete block walls outside.

Prepare a solution of water mixed with any household cleaning chemical. Step 3 prime the block wall. Apply evenly in an up and down motion on the wall. Expect 1 gallon of acrylic latex porch paint to cover up to 400 square feet.

It should maintain a pristine stylish appearance despite wet or humid conditions. Here s how to update your worn down concrete the correct way. Paint the entire wall with a thin coat of a concrete sealer or concrete primer. There are two basic types of finish on concrete block smooth and split face.

The best concrete paint for patios will feature an enamel finish that resists mold and mildew growth. Here s a problem i. Apply an even coat with a wide paintbrush. Allow it to dry for four hours or for the time indicated on the sealer.

Existing paint needs to be scraped and sanded. 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. The first step when preparing concrete block walls is pressure washing. Use a long haired paint roller with a long handle.

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 4 caulk and seal. For exterior projects use a power washer to rid the wall of all dirt and dust. Choose paint for your project.

During the preparation pay attention to any loose mortar and large cracks. Clean the concrete wall. Apply silicate based concrete sealant. Step 5 painting concrete.

Pour the sealant into a paint pan. A suitable spray pattern is the 15 degree tip held 12 inches from the surface. Regardless of the finish and whether the. Paint a concrete block wall in 5 steps.

Step 1 clean the wall. Select paint appropriate for your outdoor project. Repair any cracks or blemishes in your wall with concrete patch. Step 2 repair the mortar.

Allow the concrete surface to dry. Scrub the surface with a long handled brush. Scrape any areas with loose or flaking paint and lightly sand using fine 120 grit sandpaper.