Mapei's UltraCare Grout Refresh allows for quick and efficient restoration of grout lines. Its a nonflammable, ready-to-use, water-based, polymer-modified colorant and sealer for grout joints. It can be applied onto and bonds to cement, epoxy, urethane and acrylic grouts. This product is particularly beneficial for high-traffic areas or spaces exposed to moisture, as it forms a protective barrier that resists dirt and grime.