Foamy MAC is an advanced ready-to-use foaming cleaner formulated to cling to surfaces when sprayed with a foaming trigger sprayer or a foam gun. Use straight or dilute up to 1:10. It will clean soap scum, mineral deposits, lime or grease off of all acid resistant surfaces including: ceramic tiles, grout, drinking fountains, steam tables, wash basins, shower stalls, bathtubs, toilet bowls and urinals. Safe for use on chrome fixtures. Green liquid with a fresh scent. Excellent rinseability. Biodegradable. Phosphate-free. pH: <1.0.