Painting a Concrete Block Wall

A concrete block wall is not always a very pleasant thing to look at. They are large, bulky and gray which does not add any appeal to your home. One way to make a concrete block wall more inviting is to paint it. Painting a concrete block wall is like painting any other type of concrete but it does take some time and special equipment to do it correctly. There are several tips and tricks for successfully painting a concrete block wall and the article that follows will share some of them with you.

Remove Loose Concrete

Over time a concrete block wall can begin to erode. This can be caused by the elements it has to face but also by human error. You could back in to the concrete block wall with your car or accidentally strike it with a hammer. Regardless of the reasons for the damage, it is important to remove any concrete that is loose as well as grout or mortar. If you try to paint the concrete block wall without removing loose concrete will create a bad paint job. Use a wire brush and gently scrape the loose concrete away from the wall.

Patch and Repair

Once you have spent the time removing loose concrete you will also want to spend the time to patch any holes and cracks in the concrete block wall. This will help to make the paint go on easier while keeping the structural integrity of the concrete block wall intact. Patching is fairly easy to do accomplish as you can buy concrete already mixed in a squeeze bottle. Squeeze the concrete in to the cracks and holes and then spread it out with a putty knife. Once the concrete is dry you can sand it down flush with the rest of the concrete block wall.

Clean the Surface

Beyond the removal of the loose concrete and the patching of the wall you also need to clean them. A concrete block wall can become incredibly dirty and covered in all sorts of oils and other things, like mildew and mold. Using a power washer is a good use of your time on a large wall as it will get the cleaning done quickly. You can also set out to clean the wall prior to removing loose concrete as the washer could remove that as well. You can also use a bucket of water and a scrub brush to get in to the texture of the concrete block wall. Use a mild soap that is oil-free and then rinse the wall to remove the suds.

Use the Right Paint

Painting a concrete block wall requires you to use a specific kind of paint or else it will not adhere to the concrete let alone survive the elements. Chose a paint color that works with the rest of the paint on your property. You will also want to select a paint that is weatherproof. You will also want to start with a primer and then finish up with a sealer coat.