Rinse the cinder blocks with water to wash away dust and surface grime.
Cleaning concrete block painting.
Start washing at the top and work your way down the concrete block wall.
There are two basic types of finish on concrete block smooth and split face.
Step 1 clean the wall.
Scrub away any dirt grime or gunk that is stuck to the concrete.
Use a bigger paintbrush for this.
Clean the concrete surface with soap and warm water removing any old paint.
Wash the blocks with a pressure washer or hose and scrub brush.
Hydrogen peroxide or ammonia also work well too.
Mold and mildew spores flourish in basements that are dim warm damp and poorly lit.
Since many basements contain high moisture levels they are often installed with cement cinder block walls.
Use the paint roller for painting the areas away from the edges.
Begin by using a pressure washer.
Regardless of the finish and whether the concrete has already been painted the cleaning procedure is very similar.
The pressure washer can remove most if not all of the loose paint.
Previously painted most of the prep work involves removing all loose or peeling paint and fully evaluating the condition of the block.
Your supplies are likely to be a bucket scrub brush and detergent.
Spray the wall as necessary while cleaning it so the concrete surface remains moist.
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.
Spray the entire wall with water to rinse off dust and dirt.
Allow the first coat of paint to dry for about 10 hours.
Start by painting the edges of the concrete surface.
First sweep away any surface leaves debris and dirt.
2 combine 1 cup trisodium phosphate with 1 gallon of hot water in.
Then remove any existing paint or gunk using a power washer or scraper and wire brush.
The bad news for the fastidious homeowner is that.
Thin black and white fungi growth spreads over cement basement walls and leaves behind a musty odor.
Act concrete cleaner is so effective that all you need to do is apply some powder on the stained area spray some moisture and leave it to do all the work for you.
2 dissolve 1 2 ounce of trisodium phosphate tsp.