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I used a brand new Sharpie to draw pictures on polished carbon steel blades.
I cleaned up my designs with a dry toothpick which easily and precisely removes the ink from the polished surface.
I then etched in ferric chloride and the FC did not penetrate the sharpie ink at all.
Spray with Windex to neutralize and remove the ink with alcohol and a paper towel.
I've attempted this three times. All were successful.
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