My new concrete has white stains on it allow new concrete to cure completely.
White stained concrete wall.
Concrete can be stained when salts and other materials will come off the concrete surface.
Buy an acid based efflorescence cleaner.
The white residue on the surface of new concrete can be removed only with an.
Pfc 66 ice white solid color flat interior exterior concrete stain.
Those powdery white stains on your blocks are likely caused by efflorescence.
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.
If you ve tried cleaning it with normal detergents and water to no avail a few common household chemicals can get rid of the stains.
Efflorescence will be triggered by low temperatures humidity condensation and rain.
When left exposed to the elements or accidental spills concrete often becomes discolored if it wasn t properly sealed.
Like a candle wick the water brings dissolved salts and minerals from within the concrete mixture.
As the water evaporates those minerals are left on the surface of your block giving it a whitish hazy or streaky stain.
Acid concrete stain color below were achieved with surecrete s sure stain a semi transparent colored acid stain interior concrete and exterior if you are looking to stain your cement with natural earth tones with a low residue sure stain could be the right choice for you.
Stained color samples on this chart represent the color of finish as closely as possible.
Behr premium 5 gal.