In this video, were making a DIY Manganese Phosphate conversion coating solution (AKA Parkerizing). I have found this recipe to provide great results on steel parts.
Components used for this video:
-85% Phosphoric Acid: https://amzn.to/4drcZni
- Ferrous Sulfate (I made my own): https://amzn.to/4dhCIyj
- Manganese Carbonate (found cheaper at pottery suppliers): https://amzn.to/3ZE7IoW
- Nitric acid (or substitute a few grams of nitrate salt) - https://amzn.to/3ZCzNwX
Ratios: 1000ml distilled water, 12ml 85% Phosphoric Acid, 5g Manganese Carbonate, 1.5ml concentrated Nitric Acid or 2ml 70%, 2gr Iron Sulfate
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