Prep Concrete Block Wall Painting

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

Prep concrete block wall painting.

Use behr premium concrete and masonry bonding primer to improve the adhesion of paints and stains by binding together loose particles. Examine the walls. Patch gouged or otherwise damaged areas with concrete filler. Repair any cracks or blemishes in your wall with concrete patch.

Paint the interior walls of concrete block basements to protect against moisture. Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. The first step when preparing concrete block walls is pressure washing. If you properly paint a concrete block wall it will last for years with little upkeep.

For exterior projects use a power washer to rid the wall of all dirt and dust. It can take your concrete walls from gray to grand with a quick drying coat. Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. You can use a regular garden hose to spray down the blocks and then scrub with a brush to remove dirt.

Choose paint for your project. Any remaining loose paint will need to be removed manually. Tape off the ground or other surfaces surrounding the block wall along the base and edges of the wall so paint doesn t drip onto them. Here are 5 basic steps to help you do the job successfully.

A plain gray cinder block wall can be a wide expanse of bland. Clean the concrete surface with tsp. Using a pressure washer on a mild pressure level of 1500 2000 psi will get the job done quickly but it s okay if you don t have access to one. During the preparation pay attention to any loose mortar and large cracks.

Slip on a face mask and safety eyewear to protect your respiratory system and eyes from any harsh dusty residue released into the air by the. Step 2 apply the bonding primer using a high quality pump sprayer 1 4 to 3 8 nap roller a nylon polyester brush or pad applicator. Proper painting of these walls requires the removal of any water and mildew before beginning as well as patching the walls to prevent to growth of mold. Clean the concrete wall.

A suitable spray pattern is the 15 degree tip held 12 inches from the surface. Step 1 clean the wall. There are two basic types of finish on concrete block smooth and split face. All it takes is time and some very careful preparation.

You will need a paint that is. Using a solution of trisodium phosphate tsp and warm water clean the. Select paint appropriate for your outdoor project. How to prep walls for drylok.

Painting your concrete basement walls not only helps protect your basement against mold water bacteria and mildew but also adds to the look of your basement especially if you use it as a work or rec room. When you set out to paint concrete the process.