For many years it was a standard method of concrete preparation used by nearly all industrial commercial and institutional floor coating installers depending on the floor size and system to be installed.
Acid floor paint.
This will create a more consistent finish.
Spray the acid stain with the spraying wand about a foot and a half above the ground.
Then pour the acid based stain into a handheld airless sprayer.
Apply the acid according to the manufacturer s instructions.
Allow it to soak for a few seconds and rinse.
Spray it evenly across the floor.
As you re spraying the stain have someone else follow behind you with a broom working the stain into the floor.
Armorgarage has a full line of acid resistant novolac epoxy floor coatings and concrete repair compounds that provide the highest level of protection against hundreds of different chemicals and acids.
When you apply the acid stain the lime deposits in the concrete are what react with the acid giving the flooring its different coloring.
Novolac epoxies are a class of epoxy coatings that are specially made to resist caustic acid and chemical spills.
Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.
Consider using figure 8 patterns to spray the acid stain randomly but evenly to thoroughly coat the floor with the stain.