SimpleGrout Pre-Mixed grout is a no-mix, no-mess alternative to traditional grout. This sanded, shrink and crack-resistant formula is also resistant to common household stains. SimpleGrout Pre-Mixed grout is easy to use and ideal for grout restoration. For interior use only and suitable for wet areas such as tub surrounds, shower floors and shower walls (dry times will increase and vary). SimpleGrout can be used with ceramic, mosaic, quarry, porcelain and stone tile as well as granite.