Step 5 painting prepared concrete surface.
Preparing concrete floor for textured paint.
Wait 16 to 24 hours.
Then remove any existing paint or gunk using a power washer or scraper and wire brush.
Allow the paint to dry for about five days.
Use a bigger paintbrush for this.
First sweep away any surface leaves debris and dirt.
Allow the first coat of paint to dry for about 10 hours.
Thoroughly rinse the concrete surface with clean water using a hose with a high pressure nozzle or a pressure washer.
Excess residue may interfere with adhesion of the coating.
Test the floor for moisture by taping a 2 foot by 2 foot piece of plastic to the.
Tape a large piece of plastic over a portion of the old concrete garage floor attaching all edges of the plastic to the floor.
Leave the plastic on the floor for 24 hours.
An easy way to tell whether the floor is dry enough is to place a small.
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Start by painting the edges of the concrete surface.
Clean the concrete surface with soap and warm water removing any old paint.
Apply the second coat after the interval.
Check your wood flooring manufacturer s recommendations and sand any high spots with a concrete grinder.
Project summary use patching compound to fill any holes scratches or gouges in the concrete surface.
The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains.
All concrete is porous and absorbs moisture but if your concrete patio contains too much moisture you won t be able to paint it until you correct the moisture content.
Moisture will prevent the primer and paint from adhering properly.
Typically the floor must be level and uniform within 3 16 inch every 10 feet.
Clean the concrete thoroughly with trisodium phosphate tsp and warm water then let dry.
Scrub away any dirt grime or gunk that is stuck to the concrete.
Take an 18 inch by 18 inch square of aluminum foil or thick plastic and tape down all four sides sealing the square to the concrete with tape.
Wait until your concrete floors are dry before you prime.
Fill any low spots with a cementitious leveling compound following the manufacturer s directions and allow it to dry before proceeding.
Concrete patch can be used in place of mortar.