So, I got some Caustic Soda from a friend of mine. I am under the impression that I can use this to remove rust from old parts, sheetmetal, etc... I have never done this and would like to NOT melt the flesh off of my bones. Do you guys have any tips? Have you done this before? How do I dispose of this crap when I'm done? What kind of results can I expect? Am I dumb for trying when I should just spend days with a wire wheel, grinding until my fingers bleed!!!!????? Any help would be awesome as the bag of this shit sitting in my garage kinda freaks me out. T.