pairomedicsfish
Well-Known Member
I need some insight on why something may have happened. While working on some 52100, I etched my mark on the blade with Ferric Cloride. I did not use the electro etch system, I simply masked the blade, applied my stencil, and allowed the etchant to work. I achieved a stunning and crisp mark. I washed the blade with fresh water and dish soap. I MAY or MAY NOT have used sodium bicarb in the wash, I just cant remember. After the knife sat for a week or so, the makers mark "bled out" and became a random blotch of black. This seeping seemed to continue....Am I right in thinking that that I did not neutralize ther acid well enough? Further, I am going to be working on some 440C. I cannot find ANYONE in central florida that will laser etch my mark, will the same method of acid etching perfom okay on 440C?