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How to clean Spyderco 306 UF?

Discussion in 'Maintenance, Tinkering & Embellishment' started by AmericanEDC, Sep 8, 2013.

  1. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    Here's a photo of my stone after using a scotch pad, a Magic Eraser and using Bon Ami

    What's best to use that will it get back to white? Or do I even worry about getting it back to white? I realize what I'm seeing must be tiny particles of steel?


  2. minimalist


    Jul 3, 2013
    Bar Keeper's Friend works like magic. I use it for my Spyderco UF Stone.

    Just don't mix it with any other kind of detergent.
  3. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    It's now in my cart as an "add on" for the next order......guess Bon Ami not cutting it. Thanks
  4. kwazyjuice

    kwazyjuice Gold Member Gold Member

    Feb 10, 2013
    I clean mine with comet after every sharpening with a scotch pad. So far so good!
  5. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    Bon Ami is the non toxic version of comet. Guess I need some toxins.
  6. kwazyjuice

    kwazyjuice Gold Member Gold Member

    Feb 10, 2013
    Haha! I guess so...
  7. Magnaminous_G

    Magnaminous_G Gold Member Gold Member

    Jul 13, 2011
    I just use dishwasher detergent and a scotch pad. A little marking doesn't matter and doesn't affect the sharpening. It's a 3 micron stone, so it's very fine, and it doesn't have to be perfectly spotless white to work just fine. It does, however, load after every sharpening, so it is a good idea to clean it, but you don't have to go overboard trying to get it spotless again. Part of why it is so hard to get clean is all those lines you see in the surface, revealed by the swarf. Those are fabrication marks. The stone is not perfectly flat, and there are imperfections (ridges and sometimes even plateaus) from the manufacturing process. Doesn't affect performance.

    In short, don't worry about it.
  8. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    Thanks. I figured my magic erasers particles weren't fine enough to get into the nooks and crannies. LOL

    but as you say I wanted to keep it from loading up too much.
  9. bluntcut

    bluntcut KnifeMaker / Craftsman / Service Provider Knifemaker / Craftsman / Service Provider

    Apr 28, 2012
    You did cleaned it well, where it matter anyway. The top ridges of the surface are the actual sharpening surface, while areas still blacken are troughs (low spots) thus unreachable by the blade. BKF can dissolve some of the remaining embedded metal particles.

    Here is mine flattened 306F after a quick BKF scrub. note: a streak on left and upper right are 2 low spots.
  10. PurpleGold


    May 27, 2011
    I'll second the bar keepers friend, it gets my Spyderco 306 stone looking back to new.
  11. willc

    willc Gold Member Gold Member

    Aug 13, 2013
    As others have stated Bar Keepers Friend does a great job on ceramic stones.
    I have a fine white ceramic that I got from Garrett Wade years ago that I just could not get clean till someone here suggested BKF.
    Now aside from a couple chips it looks new.
  12. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    I've now tried Ajax as well and it had no effect. I'm convinced the grit in the Magic Eraser is bigger than this stone so it's having no effect either. I use those all over the house with great results.

    I wonder if Spyderco has a recommended cleaner? I'll order the BKF tomorrow.
  13. fervens


    Apr 26, 2009
    Ajax and comet are bleach based cleaners. They will dissolve steel after a while, but you are waiting for it to rust first. BKF is oxalic acid. It works much better at dissolving and cleaning out steel particles.

    I always clean with dish soap and a stiff nylon brush after every use. The BKF once in a while just to make sure or after heavy use. I've also had better luck using grout brushes than scouring pads.
  14. AmericanEDC

    AmericanEDC Gold Member Gold Member

    Jun 5, 2013
    I've got plenty of brushes. Will try those! Maybe I'll buy a stuff toothbrush tomorrow as well as I await the BKF

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