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wboregon
12
Sep 18, 2017
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As some one with 2 spyderco's in ZDP 189 (a dragon fly and a straetch)
DON"T DO IT. some custom makers might do well with zdp-189, but spyderco's heat treat is questionable at best. I've gone as far as to send mine in for sharpening and received it back just as dull as when i sent it in. I've worn away quite a bit of my stretch trying to get it hair popping/push cutting sharp, it wont do it. Diamond stones, ceramic systems, belgium coticule, guided sharpening, free hand, other people. Nothing gets these sharp.
stay away!
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonYou sir are completely wrong and spreading FUD. I believe you have no idea what you are even doing or you just got a dud. No one else has this issue you speak of.
And yes, zdp189 can be difficult to sharpen.
What's really funny is you replied two years ago the same bullshit lies. Man you need to not be a novice.
Sep 18, 2017
wboregon
12
Sep 18, 2017
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anonomousOoo look a zdp fan boy.
Funny i can sharpen s30v, 10v and m4 all on the same stones and systems. Yet zdp wont take an edge even with its lower vandium content. I may have gotten duds, but thats sort of the point seki city doesn't know how to heat treat 189
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonWhat a troll.
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregon
So this guy lies? Lol seems like he has no problem sharpening zdp189 from spyderco on multiple knives. Check out his other videos.
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonReturn the edge with just stopping. This guy must be doing it wrong too. Seki city must be bad at heat treatment right? Lol
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonMaybe these two videos can help you?
Sep 18, 2017
anonomous
558
Sep 18, 2017
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Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonMan this guy sharpened on a work sharp belt system and got amazing performance afterwards. Wonder what your doing wrong.
Sep 18, 2017
wboregon
12
Sep 18, 2017
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anonomousnow that your being more civil. I really don't know
I've got a mirror polish on my stretch right now. under 25x i don't see any remaining burr. It'll sort of push cut paper, but it takes some finessing.
I did some passes on .5 micron cbn solution on my latigo paddle and it just wont get scarry sharp.
At the same time i used the same stone to do my 10v k2 and it came off the stone ridiculously sharp and will whittle hair off the cbn strop.
My dragon fly is the same way, it'll start to work up an edge, but as soon as i remove the burr it deflates to smooth but dull. I've sent both into spyderco and both came back no sharper then when i sent them in. I gave my stretch to a friend who took them to his apex and he took it all the way through the polishing tapes and finished with a couple different diamond slurry and got nothing good out of them.
Currently my stretch is ~20 degree inclusive free hand and it's the sharpest it's ever been, but it's nothing like the vanadium steels which i normally prefer.
Sep 18, 2017
Hellreaver
570
Sep 18, 2017
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wboregonNot to mention the millions of reviews saying zdp-189 is a great steel. Don't listen to the original idiot.
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonBut you see here not very many folks have your same conclusion. And you are telling people not to get it.
In any case, I'm wondering if your rounding the edge on the strop which is very easy to do. You could try removing the bur using a different method or possibly try not to form a bur at all which is what cliff stamp recommends (watch his videos on this method). Why your not rounding off the other steel but doing it to zdp189 I dunno. Could be one thing or a combination of things. Technique, abrasives being used, stropping etc. I dunno.
It's possible that the sharpening abrasives your using could be the problem too, but I'm not sure as I don't have issues with what I'm currently using. I only say that because it's a steel primarily high chromium content vs vanadium and other large carbides. While the cbn is great for removing material, sometimes finishing with such material is going backwards. Doubtful but worth mentioning.
I've also got 10v, maxamet, m4, s110v, s90v etc and have no issues with them either.
I would have got a warranty replacement if they didn't get sharp. Did spyderco deny you warranty replacement?
Sep 18, 2017
wboregon
12
Sep 18, 2017
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anonomousThey denied me warranty replacement since i had previously sharpened it my self...
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonI can understand that. Tho I would have sent it back after they sharpened it and say they didn't do it good enough.
In any case the thread could have been different if you would have said....
Help, I can't get my zdp189 from spyderco to sharpen. Vs don't get this cause it won't sharpen.
Sep 18, 2017
wboregon
12
Sep 18, 2017
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anonomousI still stand by spyderco not doing a good job with zdp189
My buddy has a rockstead in zdp, granted at a much higher hardness. I gave him my spyderco to sharpen on his apex and it didn't do squat but his rockstead takes an edge with out any effort. There's just something about my spyderco zdp's that doesn't lend it's self to taking a really good edge. I wouldn't ever buy more zdp from them, but I happily ordered a a11 mule just the other day.
Sep 18, 2017
anonomous
558
Sep 18, 2017
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wboregonI've been using the A11 mule since it came out also have the maxamet mule. Both are great. A bit of oil to stave off corrosion/rust is all.
Haven't needed to sharpen the A11 yet. Just keeps going much like maxamet. It will be very similar to your 10v if not the same.
Indeed the rockstead is 67hrc and the Spydercos are at 63-64 hrc. Big difference but you have to understand that it's a mass production knife from spyderco and if they made them to 67+ we would have lots of dumb people using them for stupid tasks and breaking them. Plus it gets more expensive requiring more time and higher end equipment to get higher hrc values.
In any case I'm sure your zdp is either defective or not sharpened correctly causing your issues. It's best not to yell to everyone not to get it. It would be a different story if this was fairly common. But it is not.
Sep 18, 2017
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