Examine the walls.
Prep concrete block wall for paint.
Typically you can cover about 200 square feet per gallon of block fill primer on a smooth face and about half that amount on split face.
During the preparation pay attention to any loose mortar and large cracks.
Excess residue may interfere with adhesion of the coating.
Choose paint for your project.
Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer.
For exterior projects use a power washer to rid the wall of all dirt and dust.
The texture will determine the amount of primer and paint needed.
Using a solution of trisodium phosphate tsp and warm water clean the.
You will need a paint that is.
Any remaining loose paint will need to be removed manually.
Repair any cracks or blemishes in your wall with concrete patch.
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.
According to reliable builder masonry paint is specifically designed for good adhesion durability and breathability.
Waterproof doesn t mean this is a solution to serious water problems in your basement.
Paint your concrete walls with masonry paint.
Make sure to prime all mortar as well.
The first step when preparing concrete block walls is pressure washing.
Apply paint with a sprayer roller or brush in even strokes.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
Apply two healthy coats with a 1 2 in.
A suitable spray pattern is the 15 degree tip held 12 inches from the surface.
Smooth face concrete requires considerably less primer.
Use a commercial style pressure washer and at least 2500 psi.
Nap roller and you can clean up with soap and water.
It s made to work on a range of masonry walls concrete block stucco or brick.
How to prep walls for drylok.
Select paint appropriate for your outdoor project.
Clean the concrete surface with tsp.
Clean the concrete wall.
Paint should be about 1 8 inch thick to ensure waterproofing.
When you set out to paint concrete the process.