Keracaulk

MAPEI Keracaulk S (sanded) and Keracaulk U (unsanded) caulks have been designed to match the firm’s 36-color palette of grouts to provide a uniform color transition between the grout used in floor and wall installations. The caulk contains BioBlock, an antimicrobial that inhibits the growth of odor- and stain-causing mold and mildew in the caulk in its dry state.