Smooth the mortar using a trowel.
How to clean concrete basement floor before painting.
Fill all holes and cracks with mortar.
Pour some of the degreaser or cleaning solution from the bucket onto the floor.
Remove all flaking peeling paint using a scraper and wire brush.
Dampen the cement floor thoroughly with a hose.
Mop the tsp solution onto the entire concrete floor using a sponge mop.
The acid can t penetrate oily patches and will leave an uneven subpar flooring.
Allow the mortar to dry for the time recommended.
How to repaint concrete floors.
Attach a brush or coarse scrubbing pad to an electric floor scrubber.
Prepare to mop the concrete with a trisodium phosphate solution tsp.
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.