Art restorers in valencia spain were able to erase efflorescence from 17th century frescoes by antonio palomino in the church of santos juanes by using special bacteria selected to eat the salts and glue residue on the art.
Remove efflorescence from a concrete basement floor.
Efflorescence typically shows up better on darker concrete and occurs when the salts and other materials in the concrete make their way to the surface.
If you notice a white powdery film on your basement walls efflorescence is likely the culprit.
Removing efflorescence from a new patio is a breeze compared to cleaning a 400 year old fresco.
Concrete efflorescence is a very common problem on concrete especially decorative concrete.
The extended period of water movement through the concrete to the surface brought chemicals to the surface where they combined with carbon dioxide from the air to produce calcium carbonate the white chemical you see in this photo.
The technique part of a three year restoration project that began in 2011.
To explain it in simpler terms it s when evaporated salts and other minerals from curing concrete develop into a powder like substance due to high moisture in the air.
Joe nasvik an example of extreme efflorescence.
Efflorescence removal from a basement floor.
The problem should never be ignored since moisture can easily ruin a newly finished basement.
We are hearing more about efflorescence related issues because of the popularity of stained floors.
Efflorescence is defined as the loss of water of crystallization from a hydrated salt into the atmosphere upon exposure to air.
If you are working with an outdoor surface you can carry out this step with a garden hose.
The first step in removing efflorescence is to vigorously rinse the concrete with water.
Scrub the white powder to loosen it from the concrete floor.
It is produced due to low temperatures moist conditions condensation rain dew and water added to the surface of fresh concrete to assist troweling.
As the trend to have exposed concrete floors grows the industry is struggling with the problem of unsightly efflorescence especially when it is trapped under a film forming sealer.
Certain forms of efflorescence are considerably difficult to remove and chemical agents.
Removing efflorescence from concrete.
Efflorescence is white powdery material formed on concrete floor surface when soluble salts migrate to the surface of concrete.
Efflorescence is a fact of life with most concrete.
Efflorescence should not stop you from finishing a basement.
A contractor should remove severe deposits and properly seal any concrete before moving forward with a basement remodeling.
This can diminish the appearance of your basement walls.
When moisture and water vapor migrate to the surface of hardened concrete floors walls and colored concrete it carries with it calcium hydroxide.
Once the efflorescence is removed and the surface is treated.
Give your concrete surface a thorough rinse.