bruno994
Master of the Pit
Ospho is a rust remover / inhibitor available at Ace Hardware and a few other stores. It is in clear liquid, sold in plastic bottles and is green in color. Brush it on, let sit overnight and your metal will be ready to repaint the next day. It will turn your rusted metal black and at times there might be some white residue from the Ospho eating off rust. Just wire brush this off before you paint. I had tried several other ideas before Ospho and found it to work best. Good stuff.
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