Polyethylene glycol monobutyl ether is used in varnish removers, lacquers, and as a solvent for printing inks, duplicating fluids, and epoxy. It is used in hydraulic fluids, as a coupling agent for water-based coatings, in vinyl and acrylic paints and varnishes, and as a solvent for varnishes, enamels, spray lacquers, dry cleaning compounds, textiles, and cosmetics.