Buy an acid based efflorescence cleaner.
White stain concrete floor.
Some concrete is more porous and additional coats may be necessary.
Acid based and water based stains.
That being said you don t want to try and stain brand new concrete.
Efflorescence will be triggered by low temperatures humidity condensation and rain.
Water based stains have a wide variety of color options.
My new concrete has white stains on it allow new concrete to cure completely.
The stains are normally white and are present in darker colors more than white or pale colors due to the contrast created by the chemical reaction.
The below concrete stain colors were achieved with surecrete s eco stain a water based semi transparent concrete stain floor concrete color these colors of stain are applied on gray concrete with stain applied at full strength no dilution with two applications and is sealed with a penetrating color enhancing sealer.
Spray it evenly across the floor in a circular motion making sure the stain doesn t puddle anywhere.
Pfc 72 white cloud solid color flat interior exterior concrete stain.
You can also stain concrete overlays which is a layer of concrete poured on top of another foundation or flooring.
Rather than coating the floor in one entire color concrete stains create a pigmented marbled effect.
If it does the color will appear darker in that area.
So if your floors were recently poured you want to wait at least 30 days after they were poured before you stain.
Wait 60 days before attempting to remove any white stains on new concrete.
If it does puddle just wipe it up with a clean cloth before it dries.
It can also happen when some water has been added to concrete to increase its manageability.
Efflorescence definition efflorescence is the white powdery substance on the surfaces of unsealed concrete and the white blush seen with sealed floors.
Behr premium 5 gal.
Efflorescence is caused by vapor migrating through the slab bringing soluble salts to the surface of the concrete.
All this is available at your local big box store one set will do about 250 square feet of bare concrete for the stain.
As with floor paints there are two primary types of floor stains from which to choose.
Concrete can be stained when salts and other materials will come off the concrete surface.