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Eraser Block

Discussion in 'Maintenance, Tinkering & Embellishment' started by Aerosmith101, Apr 12, 2019.

  1. Aerosmith101

    Aerosmith101

    52
    Oct 28, 2018
    What grit eraser block is best for fine ceramic rods
     
  2. cbwx34

    cbwx34

    Dec 27, 2004
    The rust erasers? If that's what you mean... I've tried both medium and fine... fine worked better for me.
     
  3. Aerosmith101

    Aerosmith101

    52
    Oct 28, 2018
    Thanks. Does the fine work well for coarse rods
     
  4. cbwx34

    cbwx34

    Dec 27, 2004
    I just went and tried it on a med. Spyderco ceramic... fine worked better on it also. (I don't have a coarse ceramic rod).

    p.s. You can buy a med /fine "two pack" for not much more than the single one.
     
    Mr.Wizard likes this.
  5. Aerosmith101

    Aerosmith101

    52
    Oct 28, 2018
    Thanks my ceramic is more like a medium anyways
     
  6. Blues

    Blues Lapsed SuperMod / Cattle Knife Rustler Staff Member Super Mod

    Oct 2, 1998
    These work great also:

    [​IMG]
    I use them on Spyderco ceramic rods and bench stones, Venev and Edge Pro Diamond Matrix hones.
     
    willc likes this.
  7. Mr.Wizard

    Mr.Wizard

    240
    Feb 28, 2015
    Is this preferred over Bar Keepers Friend and a brush?
     
    Eli Chaps likes this.
  8. cbwx34

    cbwx34

    Dec 27, 2004
    For me, yes. Works well (little if any difference)... quicker, and no mess.
     
  9. Blues

    Blues Lapsed SuperMod / Cattle Knife Rustler Staff Member Super Mod

    Oct 2, 1998
    I keep and use Bar Keepers for the shop sink and many other uses...but I generally only use it on the hones if I see lingering signs that a deeper clean is called for. Most times the blocks do yeoman's work.
     
    Eli Chaps likes this.
  10. Wowbagger

    Wowbagger

    Sep 20, 2015
    I just bought that pair at Burrfection's recommendation for water stones. (I'm tired of wasting my good natural nagura).
    I haven't tried them on the ceramic rods but I was less than impressed using them on my Shapton Glass or my Gritomatic G8.
    I need to do more testing on other stones but they were not near as good as my natural nagura.
     
  11. Mr.Wizard

    Mr.Wizard

    240
    Feb 28, 2015
    I have given this recommendation some thought and I have a concern. Will the abrasive block polish the ceramic over time, causing it to lose effectiveness? For a flat ceramic that I could easily resurface, sure, whatever is expedient, but I'd like to keep the fine matte finish on my Idahone rod as long as possible, and dissolving rather than abrading away swarf seems conducive to this goal. Since it is a finishing hone I rarely need to clean it and I am OK with it being a bit more work and fuss.
     
  12. Chris "Anagarika"

    Chris "Anagarika"

    Mar 7, 2001
    I use pencil eraser for my Spyderco UF and DMTs. Combined with a little bit of baby oil when used, it cleans up nicely.
     
    Eli Chaps likes this.
  13. Most of the 'rust erasers' use silicon carbide grit embedded in the rubber matrix. SiC is actually hard enough to polish or burnish the alumina in the ceramic rods. That's the one thing that makes me hesitate and reach for something else, like a simple pencil eraser for lighter cleanup after each use, or the BKF treatment for more stubborn jobs.
     
    stitchawl and Chris "Anagarika" like this.
  14. Mr.Wizard

    Mr.Wizard

    240
    Feb 28, 2015
  15. Blues

    Blues Lapsed SuperMod / Cattle Knife Rustler Staff Member Super Mod

    Oct 2, 1998
    I've seen absolutely no evidence of damage to the medium or fine ceramic hones when I've used the eraser blocks. Nor have I felt any, and I'm somewhat finicky about maintenance of my gear.

    The finish on edges worked with them are just as good as ever.

    I always brush or rinse off any detritus following their use. The same rule applies when I use an artist / gum eraser instead of an eraser block.

    YMMV.
     
    Chris "Anagarika" likes this.
  16. I used the eraser blocks for a while. They work about as well as a pencil eraser has, for me. As with the pencil eraser, sometimes the eraser blocks fall short, in not removing all of the embedded swarf on the rods; I notice this more with with the white ceramics, usually Fine/UF grit. So, being that it works about the same as the pencil eraser, I opt to use the one with less aggressive abrasive. I'm just conservative, in using something with less/no potential to alter the ceramic itself. For times when that won't remove all the swarf, I'll then resort to BKF to take care of the rest.

    I used one set of V-crock brown rods, which I later discovered were actually steel rods coated with ceramic abrasive. At the time I was using those, I also cleaned them with the eraser blocks for a while. As it turned out, some of the ceramic eventually got scrubbed off the steel core, leaving shiny exposed metal in view. That's what got me thinking about using something that wouldn't overkill the cleaning task on these.
     
    Last edited: Apr 13, 2019 at 11:06 AM
  17. cbwx34

    cbwx34

    Dec 27, 2004
    All I can say is, I've used one for quite a while now... and see no difference in the ceramic... even comparing it to areas that have probably never been scrubbed much... like near the handle and tip.

    Watch this video... A.G. Russell on Ceramic Sharpening Rods
    (Go to 6 min. mark on cleaning if the link doesn't take you there).

    and take a look at that eraser... I think he's been doing this for a while. (Note what he says at 7:08).

    But hey, do whatever you're comfortable with. ;)
     
    Chris "Anagarika" and Mr.Wizard like this.
  18. Mr.Wizard

    Mr.Wizard

    240
    Feb 28, 2015
    I learned that Idahone sells a Superaser Fibrous Eraser Block specifically for cleaning ceramics. I don't know if this is the same as the sanding blocks or different, perhaps with a somewhat softer abrasive.
     
  19. JJ_Colt45

    JJ_Colt45 Gold Member Gold Member

    Sep 11, 2014
    I just use barkeepers friend it works great and fast easy clean up and wipe dry.
     

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