DAP AMP Advanced Modified Polymer Self-Leveling Concrete and Masonry Sealant provides a 100 percent weatherproof and waterproof seal with the ability to be applied on wet and damp surfaces. This premium hybrid technology offers maximum flexibility and superior adhesion for a durable seal that won't crack or shrink and can withstand the expansion and contraction caused by temperature and weather fluctuations. It can be applied in extreme temperatures - from 0 F to 140 F and is mold and mildew resistant once cured.It has a fast 1 hour paint and rain ready time and meets ASTM C920, Class 25. Interior/exterior use.