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