This versatile petroleum based lubricant forms a clear, thin film that lubricates and protects against wear and corrosion. CRC Formula 6-56 lubricates, protects, displaces moisture and cleans all in one. Use it to start wet engines; it drives out moisture. It loosens rusted parts in or around your boat engine while protecting against corrosion. Keeps stored tools from rusting and it does not affect painted surfaces.