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