Thread: Cleaning and painting rusty steel frame
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Old 10-01-19, 09:27 AM
  #23  
Lightning Pilot
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Originally Posted by Lemond1985
https://www.amazon.com/Gallon-Grade-...9936741&sr=8-6

This stuff is 85% pure, food grade to boot. I've used it on rust. Dissolves it and turns it black. Beer brewers use it to adjust the PH of the water they brew with, all you need is a few drops.
Thank you for that link! The local hardware store no longer carries it, and my supply was getting low.
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