Spray Nine Grez-Off Heavy-Duty Degreaser is a biodegradable, water-based cleaner that effectively removes heavy duty grease, dirt, fifth wheel grease, lubricants, oil, hydraulic fluid, grime, heavy moly grease, tar, and more! Nonflammable, no fumes, no abrasives, no acids. USDA approved and VOC compliant in all 50 states. Designed for use on engines, machinery, tools, work benches, garage floors/walls, condenser coils, exhaust hoods, conveyors, vents, ovens, grills, trunks, trailers, RV's, industrial and farm equipment, mowers, stainless steel, chrome, concrete, asphalt, vinyl, rubber, plastic, metal, and more!