Keracolor U Unsanded Grout is a premium-grade, preblended, polymer-modified unsanded Portland-cement tile grout that requires only the addition of water for mixing. It will grout joints from 1/16" to 1/8" (1,5 to 3 mm). Please be aware that color can vary slightly by dye lots. All monitors display colors differently based on user settings. Keep this in mind when selecting a color.