TractionWash TRWA32 1-Quart Heavy Duty Tile and Grout Cleaner Removes micro-dust, pollen and heavy grime Removes soot, adhesives and other contaminants Leaves no soapy residue or streaking Does not contain any dyes, VOC's, ODS, phosphates, phenols or solvents Dilute 1:32 for routine cleaning, 1:10 for heavy grime and grout