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