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Patina on a Tenacious

Discussion in 'Spyderco' started by styx, Mar 30, 2011.

  1. styx


    Apr 21, 2010
    Yesterday I got an interesting idea about putting a patina on some of the work horse knives while cleaning them. Upon closer inspection most of the carbon steel fixed blade ones are not good for anything any more simply because they have been broken or they will break soon enough.
    But the Tenacious is another story. So I'm wondering can I put a patina on it? And what are your suggestions in trying to do it?
  2. Orion's Belt

    Orion's Belt

    Mar 15, 2010
    Being a stainless, 8Cr13MoV isn't likely to take a patina. You can try by cutting up some fruits and not wiping it off right away. But, I'm not sure that will do much.
  3. pwet


    Feb 13, 2009
    won't do anything. you can darken stainless steel to some extent, i've done it with zdp. but you'll either neep some PCB etchant (ferric chloride) or a very strong acid. ferric chloride being the easier, less harmfull, but still...
  4. s_f


    Nov 17, 2009
    You could try battery acid (the stuff used in car batteries) - it's diluted H2SO4 (sulfuric acid). 35-70% should work quite good but you'll probably find only 25-30% (at hardware stores, garages, ...).
  5. styx


    Apr 21, 2010
    Thanks for the suggestions guys. I'll give it a shot and if anything comes out form it, I'll put the pics up
  6. yablanowitz


    Apr 14, 2006
    It's your time and your money, but you're wasting both. 8Cr13MoV is very stain resistant. I dropped a Byrd Crossbill in my girlfriend's back yard where it got watered almost every day. She found it after two months and all it had were a few spots of surface rust that wiped off with an oily rag.

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