Starbrite Biodegradable Boat Wash Starbrites biodegradable boat wash safely cleans dirt and grime off fiberglass, metal, plastics, vinyl and all painted surfaces while leaving a refreshing blueberry scent. Features Biodegradable. Leaves hulls, decks, chrome and fittings sparkling. Non-streaking, does not leave residue. Will not remove wax or polish. Concentrated Heavy-Duty Formula Powerful - 3 capfuls clean a 7 m boat Special cleaning agents remove dirt, fish blood, salt deposits, road grime, ex