Titebond 531 Moisture Control System solves the challenges of moisture transfer from concrete subfloors to wood flooring by reducing the transmission rate of moisture. The system consists of two pre-measured components that are mixed together to form a coating that is applied to the concrete surface. The easy-to-use formula reduces the moisture vapor transmission rate from concrete subfloors by 75%-90% depending on the coat weight and coverage per sq. ft. applied of Titebond 531. When used as directed with recommended Titebond wood flooring adhesives, Titebond 531 is fully-warranted. It dries fast, is tack-free overnight, has a low odor and eliminates the need for bead blasting or other inconvenient measures. In addition, it helps reduce the potential for mold and mildew growth caused by subfloor moisture. Titebond 531 provides the professional installer with a cost-effective, convenient system designed to reduce concrete subfloor moisture in wood flooring installations.