Houghto-Safe 620 is a water-soluble alternative to traditional petroleum-based hydraulic fluids. Houghto-Safe 620 dissolves in water and reduces the time and expense associated with excessive equipment cleaning. If a hydraulic line ruptures, the oil-free formula does not leave residue on automobiles or equipment. Because Houghto-Safe 620 is safe for all surfaces, it does not contaminate cleaning cloths and brushes. It also eliminates the need to flush and clean out contaminated water systems.