Attach a brush or coarse scrubbing pad to an electric floor scrubber.
How to clean concrete basement floor before painting.
Dampen the cement floor thoroughly with a hose.
Prime and paint priming before you paint concrete floors helps ensure that your new look will stick.
Fill all holes and cracks with mortar.
Acid etching with vinegar is easy and less labor intensive than using a machine to pretreat the concrete floor before sealing or painting.
Remove all flaking peeling paint using a scraper and wire brush.
Allow the mortar to dry for the time recommended.
Smooth and sand rough edges using 100 grit sandpaper.
Prepare to mop the concrete with a trisodium phosphate solution tsp.
Smooth the mortar using a trowel.
The acid can t penetrate oily patches and will leave an uneven subpar flooring.
How to repaint concrete floors.
Sweep the floor of all.