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. It can take anywhere from 30 to 90 days for alkaline levels to drop enough for painting. However, this is only a guideline;

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This typically takes between 14 to 28 days after the placement of the concrete. Standard specifications recommend a minimum 28 day cure period for “green concrete”, before an epoxy floor coating or other resinous system can be applied. 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.

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It can take anywhere from 30 to 90 days for alkaline levels to drop enough for painting. Allowing the new concrete to cure for at least 30 days can reduce the alkalinity and moisture content to levels low enough for the concrete to take paint. Any sooner than that and a barrier would be created that prevents moisture from evaporating. The colour will change from a dark pink to light pink, and the time it will take to dry will depend on the thickness of the plaster, the temperature within the building, and the amount of ventilation available.