Author: David Thompson

Moisture Tests in Concrete: Calcium Chloride vs. Relative Humidity

When good floor coatings go bad, moisture is often the culprit.

Even cured concrete can emit enough moisture to blister, cloud or delaminate a coating, especially when a slab with no vapor barrier sits on ground with poor drainage. The manufacturers of overlays, microcoatings, sealers and specialty coatings set moisture tolerance limits for their products.