Grez-Off is an award winning, grease buster. Professional strength, water-based, biodegradable formula. Bolstered with fast acting surfactants. Grez-Off® digs into grease and grime, prying it away like no other product can. For use on engines, machinery, tools, mowers, conveyors, vents, work benches, walls and floors. Also effective on ovens, grills, trunks, trailers, RV's, industrial and farm equipment, concrete, asphalt, vinyl, rubber, plastic, metal and more. Professional strength, water-based, biodegradable formula hits hard and fast.