Prep Concrete Block Wall Painting
A suitable spray pattern is the 15 degree tip held 12 inches from the surface.
Prep concrete block wall painting. Paint the interior walls of concrete block basements to protect against moisture. You will need a paint that is. Here are 5 basic steps to help you do the job successfully. The first step when preparing concrete block walls is pressure washing.
Using a solution of trisodium phosphate tsp and warm water clean the. Repair any cracks or blemishes in your wall with concrete patch. Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush. It can take your concrete walls from gray to grand with a quick drying coat.
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. A plain gray cinder block wall can be a wide expanse of bland. When you set out to paint concrete the process. Clean the concrete surface with tsp.
Patch gouged or otherwise damaged areas with concrete filler. 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. Choose paint for your project. Paint the entire wall with a thin coat of a concrete sealer or.
For exterior projects use a power washer to rid the wall of all dirt and dust. Step 1 clean the wall. Select paint appropriate for your outdoor project. Wash the blocks with a pressure washer or hose and scrub brush.
If you properly paint a concrete block wall it will last for years with little upkeep. Clean the concrete wall. 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. During the preparation pay attention to any loose mortar and large cracks.
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. There are two basic types of finish on concrete block smooth and split face. You can use a regular garden hose to spray down the blocks and then scrub with a brush to remove dirt. How to prep walls for drylok.
Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar. 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. Examine the walls. Any remaining loose paint will need to be removed manually.
Use behr premium concrete and masonry bonding primer to improve the adhesion of paints and stains by binding together loose particles. All it takes is time and some very careful preparation.