Star Brite Sea Safe Hull Cleaner - 32 oz No rubbing required Biodegradable formula Does not contain solvents, phosphates, strong acids or harsh chemicals Simple wipe on, rinse off formula Safe for use on fiberglass and painted surfaces No rubbing required Environmentally friendly, biodegradable formula Does not contain solvents, phosphates, strong acids or harsh chemicals Simple wipe on, rinse off formula Safe for use on fiberglass and painted surfaces