Salt-Away is a Motor Flush for inboard, outboard, I/O and personal watercraft motors and an exterior salt removing treatment. Salt-Away is water based, non-hazardous, biodegradable, and contains properties that attack and remove salt from any surface. Repeated use with Salt-Away will break down and remove old salt and rust deposits. Safe for use on any metal, aluminum, fiberglass, paint, rubber, plastic, chrome, glass, or any surface exposed to salt. Salt-Away will not strip away waxes, but will wash away salt and leave a protective film on the surface to protect against rusting.