Bostik 4 Gallon Roll-Cote High-Performance Moisture Vapor Barrier Coating and Primer, $299.99 USD/Box, LL Flooring (Lumber Liquidators)

Roll-Cote is a water-based, single-component system designed to decrease substrate moisture-vapor emissions while priming floors and neutralizing alkalinity in concrete surfaces. Its easy-to-apply formula requires no mixing and dries quickly, making Roll-Cote reliable and convenient for users. The coating is durable and has low odor, with a black pigment that helps indicate coverage and potential contamination during installation. Flooring can be installed in as fast as one hour. It offers various applications such as priming with cement products, acting as a vapor retarder with floating and glue-facilitated floors, and serving as a moisture-vapor barrier with hardwood and vinyl adhesives. Each gallon covers 100-200 sqft.