This half-gallon container of Flexible Grout Admixture from Superior Tool & Supplies will help you get the most out of your tile. It boasts superior strength and increases grout cure time and helps reduce tile grout shrinkage and cracking. In high-traffic areas such as walkways, entryways or kitchens, this flexible grout admixture will even improve grout color while keeping your floor tile and wall tile looking its best.