Efflorescence is a crystalline deposit of salts that can form when water is present in or on brick, concrete, stone, stucco or other building surfaces. It has a white or greyish tint and consists of salt deposits left behind when water evaporates. In addition, efflorescence can appear as a powdery substance on floors and walls and requires special care to treat.
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The term ‘efflorescence’ is not always properly pronounced (“eff-floor-ess-sense”), much less adequately understood by design/construction professionals. It is the result of the combination of four factors:
In chemistry, efflorescence (which means "to flower out" in French) is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water.
Efflorescence is one of the first signs of moisture problems for cementitious materials, especially masonry. A by-product of moisture combining with free salts, this phenomenon is not only just a cosmetic problem—left unchecked during freeze-thaw conditions, it can cause brick to weaken, spall, or crumble in some cases.
If you leave dissolved salts on the surface from water, they'll return as new efflorescence. Soft washing can be effective in removing surface deposits. The appropriate amount of pressure is important as a spray that is too intense may actually open pores on the surface encouraging further efflorescence.
The formation of efflorescence depends on a number of natural physical processes involving both salt and water transfer in and out of concrete/mortar. Specific conditions may dictate the extent to which any of the many processes involved may take place and hence may dictate the extent of efflorescence re-occurrence.
Restore is proud to be an Authorized Applicator for the Front 9 restoration system in conjunction with our proven soft wash process.
Our process can safely and effectively remove Efflorescence Calcium and Lime, Fertilizer and Battery stains without further damage to the surface.
Avoid the use of acidic cleaners which will not remove these tough stains, but will instead cause irreversible damage. Please, only have these stains treated by a professional.
We look forward to the opportunity to Restore your curb appeal!