As of 2015, Mapei offers two versions of its Keracolor product, known as the S and the U variants. Both types of Keracolor are polymer-modified Portland cement tile grouts that use a preblended mixture and only need water to be ready for mixing.
Both the Keracolor S and the Keracolor U are compatible as grout for tile joints that measure between 3 to 16 millimeters. The Keracolor S is sanded grout while the Keracolor U is unsanded grout product. Mapei.com places the Keracolor products under the Tile and Stone Installation Systems product category and provides links to downloadable technical data sheets.