Non-toxic, non-flammable & biodegradable, safe on all surfaces not harmed by water. Contains rust inhibitors. Good wetting, penetration, and emulsification properties. Concentrated: 1 gallon makes 4-12 gallons of ready to use product. A waterbased cleaner & degreaser formulated to remove grease, oil, carbon, or any other industrial soil from concrete, machinery, engines, floors, walls, etc. Low foaming for use in automatic scrubbers. Extremely concentrated, dilutions up to 1 oz. per gallon.