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Any love for the ZDP-189 offerings?

Discussion in 'Spyderco' started by SCBaldr, Dec 26, 2017.

  1. NoFair


    Jun 30, 2006
    I'm pretty happy with my ZDP knives (Caly 3.5, CF Stretch and C22 Michael Walker). It does discolor a bit if you don't clean it after cutting meat etc, but I've only had light surface rust (forgot to clean my Stretch after cutting BBQ with it). The can take a very polished edge and the steel feels very hard on the stones when sharpening. Never had any chipping issues, but these aren't the folders I use the hardest.

    I carry the CF C22 several times a week and it only needs a very light touch up on the UF rods once a month maybe..
  2. RipD

    RipD Gold Member Gold Member

    Dec 10, 2014
    I like it. Seems to stay sharp forever. Had a Stretch with ZDP-189 that came to me with a nick in the edge. Filed it out with a diamond stone and could not get it sharp. Did some reading and needed to back way off it when sharpening. Gentle touch and it was screaming sharp. Took a beautiful new edge on an Edge Pro. One of the easiest and most consistent new edges I've done.

    Sold it because it was too big to EDC. Already want another one. :)
  3. Knifeoholic


    Feb 8, 2016
    I had a similar instance with an apple and a ZDP Stretch. Cut up and ate the apple. Went to get a glass of water, sat back down and fell asleep. (Haha guess I was due for a nap). Had some light rust on blade, but was able to clean it off just with my hands.
  4. Razor

    Razor Gold Member Gold Member

    Dec 8, 1999
    It sounds like it would work good on the military and Para2!
  5. Chris "Anagarika"

    Chris "Anagarika"

    Mar 7, 2001
    With limited tools I have (DMT EEF and Spyderco UF), I can get ZDP much sharper than S110V, dry shave my without having to wash up first. S110V with same treatment doesn’t get there, needing more steps. S110V is more corrosion resistance though.
  6. SCBaldr

    SCBaldr Basic Member Basic Member

    Jan 14, 2016
    good to know, I wouldn't have suspected a steel with a full 20% chromium to corrode that badly. I'll keep it oiled like I do my M4 and Maxamet blades.
    Chris "Anagarika" likes this.
  7. John_0917

    John_0917 Gold Member Gold Member

    Apr 15, 2014
    With the metric butt load of carbon that is in there (3%), most of that chromium is in carbides. This is obviously good for abrasive wear resistance but limits the amount available to form chromium oxide, which is the invisible layer formed on the outside of stainless steel in place of iron oxide (rust).

    Also, large amounts of chromium are counter productive to having good toughness, that combined with the tungsten present and the high hardness are why ZDP tends to me fairly brittle. It is also a reason why most high toughness steels (like 3V) don't have much chromium and in turn aren't stainless. I know the steel nerds will probably nit pick this paragraph but what I'm saying in very general, non scientific terms is true.
  8. mykel m

    mykel m Gold Member Gold Member

    Sep 11, 2009
    Yes, I like my ZDP-189 Delica just fine.
    It's one of only three Spydercos I own and my main modern knife EDC.

  9. harronek


    Nov 29, 2013
    I carried a ZDP189 Delica as my work knife for a long time and it never let me down .
    I carry a HAP40 Delica now, but I wouldn't feel under-gunned if I went back to carrying the ZDP189 .


    RipD, PanChango and willywall like this.
  10. The Deacon

    The Deacon

    Apr 27, 2003
    I have no love for ZDP. Costs more than VG-10 and is less rust resistant. On top of that, while it does hold an edge longer, it makes up for that by taking longer to sharpen so it's simply deferred maintenance rather than reduced maintenance.
    Chris "Anagarika" likes this.
  11. sharp_edge

    sharp_edge Gold Member Gold Member

    Jul 30, 2015
    Yes - ZDP does take more time to sharpen than most other steels (s30v, s35v, Elmax, and M390).
  12. RipD

    RipD Gold Member Gold Member

    Dec 10, 2014
    Seems to be stone dependent. Stock Edge Pro stones did very little. Used diamond stones to get the edge where I wanted it then finished with Shapton glass stones. The Shapton stones cut like crazy with no pressure. One of the best edges I've gotten from my EP.

    Edit: fixed typos. Will also re-emphasize that I went very lightly with the 500, 1K, and 4K glass stones. I first assumed I had to use more pressure on hard steel.
    Last edited: Jan 24, 2018
    Chris "Anagarika" likes this.
  13. toxophilus

    toxophilus Gold Member Gold Member

    May 14, 2015
    Best Friend (Wife) has the British Green Manbug on her keychain, she uses it a lot and I've only had to sharpen it for her a couple of times in the past year; my users are in the Stretch FRN model and I like it so much that I'm having scales made for it.
  14. SCBaldr

    SCBaldr Basic Member Basic Member

    Jan 14, 2016
    That depends pretty heavily on your setup. If you've got good quality diamond stones you might not notice the difference in material. In my experience, my wicked edge will cut through 1055 in about the same time as M390. The only difference I've noticed was going from 1055 to maxamet. ( I did an old mild carbon chefs and my Maxamet Manix 2 LW, one after the other on the wicked edge) Even then it wasn't a huge difference, and that might have been due to the fact that when I do maxamet, I use very very light strokes. But if I take the 1055 and m390 to my waterstones and switch, I notice a very big difference in time and effort.
  15. jpm2


    Nov 19, 2014
    Years ago I gave my sister inlaw a vg10 delica. She would ask me to touch it up every couple of months. She lost it a little over a year ago and I gave her a zdp delica. I ask everytime I see her if it needs touching up and so far she's said it's fine.
    Chris "Anagarika" likes this.
  16. brownshoe

    brownshoe I support this site with my MIND

    Sep 6, 2002
    I don't have a Spyderco ZDP, but do have a William and Henry with a ZDP core and that's not been my experience. The exposed edge portion doesn't rust or chip. I use it in the kitchen and it gets wet. I've cut the back out of chicken many times, cut lemons/limes and let it sit. At the end of use, it routinely gets washed with hand soap, rinsed off and dried with a paper towel. I've touched up the edge a few times on the Sharpmaker or sandpaper, but not really because it needed it and I've had it for more than a few years. For me, it's truly a wonder steel. From my experience, if one's ZDP blade chips, rusts or gets so dull that sharpening it is a pain, then it's been abused or the heat treat is significantly softer than what is done by William Henry.
    Chris "Anagarika" likes this.
  17. hank_rearden


    Jun 7, 2002
    "Deferred maintenance.." :D
  18. Yonose


    Jul 10, 2017
    I have to admit I’m bought both of my zdp knives more for the design and the way it felt in my hand. My stretch in zdp is probably the only blade more useful than a delica(to me.—not trying to get burnt alive for heresy). The fact that it’s in such a hard steel makes me more careful not to be careless with the knife. And it definitely gives me a sense of pride, knowing that it will just keep cutting and cutting. My caly 3.5 is for black tie functions where frn would not be welcome.
    Chris "Anagarika" likes this.
  19. tiguy7

    tiguy7 Gold Member Gold Member

    Jun 25, 2008
    I agree completely. My William Henry ZDP knives sharpen up quickly on the Shaptons. There is nothing in the alloy that is harder than 67 HRC, and the Shaptons are harder than that. The non-Damascus San Mai W/H blades are clad in 420 SS which is one of the most corrosion resistant stainlesses in the 400 series. In use, I see more corrosion on the bread than on the bologna. The rust is easily removed with a fingernail. I have 6 or more of these knives used over a dozen years. I have never seen the slightest chip.
    I have 3 ZDP Enduras which have seen limited use, and I haven’t sharpened them yet. I got the Enduras because the W/H knives have short blades (3 1/8”).
    Chris "Anagarika", RipD and brownshoe like this.

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