How Long Does New Cement Need To Cure Before Painting in How To

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How Long Does New Cement Need To Cure Before Painting. Test the ph, and look for levels 9.0 and 10.0. Before painting, rinse the repaired area with plenty of clear warm water.

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Before painting, rinse the repaired area with plenty of clear warm water. The actual wait period can be much longer, depending on the composition of the concrete mix, the relative humidity, air temperatures, and a host of other conditions. Standard specifications recommend a minimum 28 day cure period for “green concrete”, before an epoxy floor coating or other resinous system can be applied.

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Radiant floor heat is not an issue for coatings. Any sooner than that and a barrier would be created that prevents moisture from evaporating. Three days of pond curing does the work of seven days of moist curing, and without daily attention—just be sure the water level remains. Concrete can be fully cured and still have moisture trapped inside that has yet to fully evaporate.