The Top Cap that you know and love, now in a Smooth Finish. Top Cap is a one component, low-build overlay that makes it easy to revitalize existing concrete without expensive removal or replacement. Restore a standard broom finish or create a new smooth finish for staining, stencils and more. Use Top Cap to turn sub-floor concrete into main flooring after removing carpet or tile and to provide beauty and durability for years to come. Top Cap is suitable for interior or exterior use and is engineered to stand up to a harsh freeze-thaw environment.