Makes up to 20 gallons. Removes grease and oil. Use on concrete, masonry, brick, asphalt and quarry tile. ZEP Commercial Driveway, Concrete and Masonry Cleaner is a heavy duty industrial alkaline cleaner specially formulated to remove heavy oil, grease and grime. For use on: Concrete, masonry and asphalt driveways, walkways and slabs. Do not use on: Painted and stained surfaces, aluminum, brass chrome, copper and other alkaline sensitive surfaces. No phosphates. Made in USA.