The right jell degreaser for any surface, including the undersides of any and all equipment. Emulsifies grease. tar, asphalt, and bitumen from everything including painted surfaces, metal. concrete, brick and stone. Will not harm original surface. Use this biodegradable product in place of petroleum and other hazardous chemicals. Citra-jell can even be diluted 1:50 with water for general purpose cleaning and deodorizing.