SikaLatex Risan acrylic-polymer latex. It is a non-reemulsifiable, general-purpose admixture to produce polymer-modified concrete and mortar. Stocked in 1 gal. jugs Where to Use An admixture in mortar and concrete to improve adhesion, and achieve a denser surface. Use in patching and flash coats. Use with stucco and terrazzo. As a bonding grout when mixed with sand and Portland cement. For use with SikaRepair® to improve the mortar and increase the adhesion and performance.