Frequently Asked Questions

My colored concrete has some areas where it's much darker than other spots. Why?

If the concrete is new, that is less than two weeks old, it could still be drying. However, if some of the dark spots seem to be staying dark while the rest of the concrete is drying out, you may have areas of "Entrapped Moisture". Entrapped moisture is a condition that appears as random dark areas which can be completely different in shad from unaffected areas. It may also precisely follow areas that were "hand troweled" or where edging and jointing tools were used. Remedy entrapped moisture by scrubbing the dark spots with a stiff bristle brush and flushing with water. Repeat the process over a few days and they should lighten up. If your concrete is older than two weeks, wet the dark spots with water, then pour on some white vinegar and scrub with the stiff brush. Entrapped moisture takes a few treatments to disappear.