Professional Strength. Lifts tough grease and oil; Contains natural citrus solvents. Zep Commercial Heavy-Duty Citrus Degreaser contains a natural citrus solvent that cuts through the toughest grease, grime and oil. For Use On: Tools, engines, equipment, concrete, appliances, grills, bathroom surfaces, fiberglass, aluminum, stainless steel and ceramic tile. Not for use on: Carpet, fabric, upholstery, glass, Plexiglass, plastics, auto paint, leather, marble or any natural stone. Surface Compatibility: Before using product on surfaces not recommended on this label, test in an inconspicuous area. Never allow product to dry on surface before rinsing. Always rinse quickly when using on painted, stained or varnished surfaces. No phosphates. Made in USA.