What causes Stucco Color Coat finish to dry soft?
ยป Stucco cures through Hydration, Stucco finishes unlike stucco base coats (which require moist curing by wetting) cure by available moisture-humidity. Except for severe drying conditions, the wetting of finish coat should be avoided. Stucco Color Coat will normally dry and set the same day, during periods of hot and or dry weather conditions, a light spray (mist) of clean water is recommended over the stucco finish. If the stucco dries out too quickly during the curing process the stucco will dry soft. Some of the causes of soft stucco include wind, high temperatures, and no moisture in the substrate. Hot and windy weather may cause water to evaporate from new stucco too rapidly. If the stucco does not hydrate properly and does not get hard, the surface may be moist cured to facilitate hydration. In addition, a dry substrate will draw moisture out of the color coat and stop the hydration process.
