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apolaki · 14th February 2020, 02:54 AM

Is the black smudge a result of zinc coating on the blade? I saw a video where vinegar turns zinc coated screws black. So did i essentially strip thhe zinc off the blade?

14th February 2020, 02:54 AM	#28
apolaki Member Join Date: Oct 2008 Posts: 160	Is the black smudge a result of zinc coating on the blade? I saw a video where vinegar turns zinc coated screws black. So did i essentially strip thhe zinc off the blade?