In retail and polished concrete floors subject to primarily pedestrian/cart traffic Spal-Pro RS 65 Rapid Set, Semi-Rigid Polyurea joint sealant is a good option. The product offers superior expansive capabilities for a semi-rigid product and can be installed prior to a concrete polishing process. With a Shore A Hardness of A64-69 it still provides joint edge protection superior to other traditional “sealants.” Spal-Pro RS 65’s rapid cure time ensures quick access to the floor for traffic and polishing applications.