Quartz-Lock^® Grout is a Urethane based grout that contains NO Epoxy, NO Cement and NO Pigments. The grout comes ready to use in the bucket. The rich color is derived from treated quartz, not pigments. Quartz-Lock^® Grout stays colorfast and will match perfectly every time. The water based formula makes workability and clean up a snap. Quartz-Lock^® Grout cures to a hard, semi-elastic, self-sealed finish that looks great and lasts. Our anti-microbial formula resists mold, mildew and fungus. Best of all, Quartz-Lock^® Grout leads the pack for stain and chemical resistance and exceeds ANSI 118.3 for both. Quartz-Lock^® Grout captures all the benefits of epoxy grout without the headaches (or the allergies).