Prepare to mop the concrete with a trisodium phosphate solution tsp.
How to clean concrete basement floor before painting.
Acid etching with vinegar is easy and less labor intensive than using a machine to pretreat the concrete floor before sealing or painting.
If you are working on an outdoor piece of concrete flooring clean it of any grease.
Sweep the floor of all.
Remove all flaking peeling paint using a scraper and wire brush.
Pour some of the degreaser or cleaning solution from the bucket onto the floor.
Attach a brush or coarse scrubbing pad to an electric floor scrubber.
Allow the mortar to dry for the time recommended.
Smooth the mortar using a trowel.
Smooth and sand rough edges using 100 grit sandpaper.
The acid can t penetrate oily patches and will leave an uneven subpar flooring.
How to repaint concrete floors.
Dampen the cement floor thoroughly with a hose.