Loctite® Naval Jelly® Rust Dissolver is the original rust treatment formula that has been used for over 40 years. It removes rust from metal surfaces such as iron, steel and other ferrous metals and will also remove blueing from steel. Heavy duty rust treatment formulaWorks in 5 to 10 minuteWater solubleCan be sprayed or brushedGel formulationDo not use on aluminium, chrome, stainless steel, cement, fiberglass, marble, plastics or painted surfacesProduct is not a rust preventer and must be protected with a clear coating or primed & painted within 24 hours of applicationWorking time ranges from 5 to 10 minutesColor when applied is pink