Unusual Etch on a Moro Blade

DaveS · 21st May 2012, 02:59 AM

Spiral: I've had this happen before also after using vinegar to neutralize the
Phosphoric acid that i usually use to etch blades. It seems strange
to me that one acid can be used to neutralize another, but i guess
for some reason it works. Try also heating blades on both sides with
a torch (very carefully). Then apply acid. It seems to emphasize
the high-carbon areas of a blade with some really good results. If
the blade turns out too dark simply repolish, and try again....Dave

21st May 2012, 02:59 AM	#8
DaveS Member Join Date: Feb 2006 Posts: 327	Spiral: I've had this happen before also after using vinegar to neutralize the Phosphoric acid that i usually use to etch blades. It seems strange to me that one acid can be used to neutralize another, but i guess for some reason it works. Try also heating blades on both sides with a torch (very carefully). Then apply acid. It seems to emphasize the high-carbon areas of a blade with some really good results. If the blade turns out too dark simply repolish, and try again....Dave