De-Rusted Drum 2
All told, it took approximate 15 coats of Gel to do it the "thick coat" method (right image) versus five coats for the more labor intensive "apply/scrub repeat" method. I would definitely use the Liquid on deeply rusted cast iron (see the rusted rear end weight above in the Liquid section for more information) for both speed and cost, but if you can't dip the part and you can't sand blast it, I don't know of a better way to remove this kind of nasty rust. Photo: Ryan King, 2006.
Rusteco Gel Application Image Gallery | Image 7 of 12