It will penetrate deep into the metal dissolving the rust in a few hours. Leaves metal ready to paint, plate or powder coat. So gentle, it’s suitable for engine parts and is harmless to copper, brass, aluminum, solder, lead, plastic, rubber, seals, wood, and vinyl. Will not remove sound paint.
Liquid rust Dissolver works as long as the surface is wet. Items that cannot be fully immersed due to size can be placed in the discharge stream of a commonly available small pump. One gallon de-rusts about 20 square feet of metal.
The gel adheres to vertical surfaces and dissolves rust without having to submerse the metal in a tub or bucket. Ideal for quarter-panels, fenders and other vertical surfaces.