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More adventures in water-based cutting juice

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Author Topic: More adventures in water-based cutting juice  (Read 488 times)
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« on: April 05, 2016, 10:32:28 am »

I use borax and sodium nitrite.  The borax acts as a surfactant and a very mild corrosion inhibitor.  The sodium nitrite is a lubricant and potent corrosion inhibitor.  I leave water in the tank until it evaporates with no ill effects.  I managed to save a bucket of sodium nitrite from our heat treat process but you can get it at the grocery store as food preservative.  It doesn't get any safer than that.
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