Mapei Keracaulk U Bone

Keracaulk S (sanded) and Keracaulk U (unsanded) are premium-grade, easy-to-use, easy-to-clean siliconized acrylic caulks formulated to match the color and texture of Mapei sanded and unsanded grouts. Packaged in gun-grade tubes for easy application. For caulking around sinks, tubs, showers, countertops and ceramic tile floors.