These acid-free rust removers are safe for contact with people and surfaces. Dip, brush, or spray metal to remove and prevent rust. To use as a remover, rinse after applying; to use as an inhibitor, apply again and allow remover to dry on the item—removers prevent rust for up to four weeks.
One gallon removes 1/2 pound of pure rust, enough to treat 300 pounds of moderately corroded steel.