An excellent organic, non-petroleum, cleaner/degreaser, and deodorizer. It is completely biodegradable and environmentally safe. Contains no caustics, acids, petroleum distillates, chlorinated hydrocarbons or chlorinated aromatic solvents. Zep Big Orange contains a natural citrus solvent and is particularly appropriate where poor ventilation is a problem. Use to clean and degrease molds, dies, unpainted concrete floors, and industrial equipment. Effectively emulsifies tar and asphalt and removes many industrial glues and protective coatings. Ideal for use as a cleaner and deodorizer in drain pipes, grease traps, sewage treatment plants, rendering plants, refuse dumps, trash cans and dumpsters. May be diluted with water (it will emulsify) as much as 2 ounces per gallon for light cleaning. For most heavy duty jobs dilution will be less - 1 part Big "O" with 2 to 4 parts water. USDA applicable as a drain opener or deodorant in inedible product areas. Also available in aerosol form.