Concrete Sealer White Haze

The sealer was not completely dry when an additional coat was applied.

Concrete sealer white haze.

It covers topics like. Trapped water moisture and over applied sealer trapped moisture under the sealer is the most common reason that the sealer has turned white. This makes the sealer turn white or cloudy a phenomenon called blushing. If your sealed surface turned hazy or white it s most likely due to excessive moisture.

If the problem is ongoing any fix will only be temporary. There are a number of reasons this could have occurred. The main ingredient of a stamped concrete sealer stripper methylene chloride has now been banned for consumer use in the us. The sealer puddled in low areas and was overapplied as result.

Efflorescence is normally worn off or washed away on unsealed concrete surfaces. Thinly applied acrylic sealer allows this to happen. Reasons for sealer issues. Today the current voc compliant sealer gives off less than 400 grams per liter.

Brush up on your knowledge by downloading a free copy of our sealing gone wrong slideshare. To fix you will need to remove the sealer with a concrete or paver sealer stripper. Efflorescence is the white powdery substance on the surfaces of unsealed concrete and the white blush seen with sealed floors. Since the reduced levels have become effective we have seen many many formula changes.

Thick coats of sealer or a buildup of coats applied over the years will cause moisture to become entrapped under the sealer and in time the sealer debonds from the concrete. The sealer turned white every time it got wet. Sealer turned a white or cloudy color a white or cloudy color is caused by moisture that is trapped inside the sealer. Unfortunately stamped concrete sealers sometimes fail by discoloring and turning milky white or yellow in color and will need to be chemically stripped to fix.

This happens to sealers that are not breathable or over applied. There is a lot to know when it comes to sealers. Moisture vapor pressure contamination or over application of the sealer can cause this problem.