Excess residue may interfere with adhesion of the coating.
Prep concrete block wall for paint.
Waterproof doesn t mean this is a solution to serious water problems in your basement.
Apply paint with a sprayer roller or brush in even strokes.
Apply two healthy coats with a 1 2 in.
Scrub the entire wall briskly with a dry stiff bristled scrub brush or a stiff wire brush.
Clean the concrete surface with tsp.
Paint should be about 1 8 inch thick to ensure waterproofing.
Smooth face concrete requires considerably less primer.
Paint your concrete walls with masonry paint.
It s made to work on a range of masonry walls concrete block stucco or brick.
You will need a paint that is.
Choose paint for your project.
During the preparation pay attention to any loose mortar and large cracks.
Repair any cracks or blemishes in your wall with concrete patch.
Patch gouged or otherwise damaged areas with concrete filler.
According to reliable builder masonry paint is specifically designed for good adhesion durability and breathability.
Select paint appropriate for your outdoor project.
When you set out to paint concrete the process.
For exterior projects use a power washer to rid the wall of all dirt and dust.
The first step when preparing concrete block walls is pressure washing.
Using a solution of trisodium phosphate tsp and warm water clean the.
The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains.
Make sure to prime all mortar as well.
The texture will determine the amount of primer and paint needed.
How to prep walls for drylok.
Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer.
Use a commercial style pressure washer and at least 2500 psi.
Any remaining loose paint will need to be removed manually.
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.
Nap roller and you can clean up with soap and water.
Examine the walls.
A suitable spray pattern is the 15 degree tip held 12 inches from the surface.