MIGHTY-O Product is a 3% butyl degreaser that contains an organic solvent to help dissolve grease, oil, mold, mildew, soap scum, etc. It is very effective in cold or hot water, high pressure washing of painted metal surfaces like gutters. It is also an excellent pre-spray for use on extremely difficult cleaning jobs and will clean engines, tires, floors, walls, etc. Dilution will range from 10:1 to 50:1 dependent upon water hardness, application equipment, and severity of soils. Contains Sodium Hydroxide. USDA approved.