Cleans deposits and stains from boat bottoms.Formulated to remove even hardened deposits and tough stains from boat bottoms, this biodegradable cleaner works fast without harming the marine environment. Also works for removing rust stains. Does not contain harsh acids or phosphates.Key FeaturesLoosens and removes Marine deposits and tough stainsBiodegradable formulaUse on fiberglass and painted surfacesGood at removing rust stainsPrepares bottom for painting or polishingSafe for use on fiberglass, wood and painted surfacesRemove Marine deposits from rubber inflatables