Efflorescence Polished Sealed Indoor Concrete Floor

When moisture and water vapor migrate to the surface of hardened concrete floors walls and colored concrete it carries with it calcium hydroxide.

Efflorescence polished sealed indoor concrete floor.

The best approach would be to strip the sealer from a small area and perform a moisture test either a calcium chloride moisture test or an electronic surface moisture test so you can get an idea of how. Once the sealer and wax are removed a moisture test should be conducted so you can get an idea of how much water is moving through the slab. Efflorescence will not only cause problems with a stained and sealed concrete floor it can also delaminate tile and warp wood floors. Joe nasvik an example of extreme efflorescence.

Concrete efflorescence is a very common problem on concrete especially decorative concrete. Concrete can be stained when salts and other materials will come off the concrete surface. You can apply armor ar350 concrete sealer to both exterior and interior concrete surfaces and it can also be used on concrete bricks natural stone pavers and aggregates. Efflorescence will not only cause problems with a stained concrete floor it can also delaminate tile and warp wood floors.

The concrete was placed colored and stamped shortly before winter. 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 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.