knots Posted October 30, 2010 Share Posted October 30, 2010 A while back I had a conversation with a water system engineer . While talking about corrosion he asked me what blacksmiths use to treat/kill corrosion. My standard response was phosphoric acid. He said that for water supply systems citric acid is used exclusively. This makes sense for the food or water supply infrastructure. But what about other day to day applications in a black smith shop ? Any body ever try citric acid for rust treatment ? I walked into a paint store the other day and requested citric acid based rust treatment. They never heard of it. Quote Link to comment Share on other sites More sharing options...
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