ZDP-189 sucks!

Joined
Apr 21, 2011
Messages
221
Okay, so my blade rusted! What the hell!

Er. Okay, the cat is out of the bag. Let me explain. I (me, myself, and I) let my blade rust. A little. It has since been cleaned up.

I make this more of a PSA. Spyderco made me a fine folder in the endura 4 zdp blade that I put in my edc. But it's been about 100 degrees here for a few months, I carry this blade in my rotation. I tend to consider myself meticulous in sharpening a blade, and pretty good in maintaining one. (I'm still learning and improving)

I had a topic in the general maintenance section about a similar issue with my kershaw bump. Trying to evaluate the steel. A tool is only as good as its user, and I need some serious work on remembering to oil my blade. Don't get complacent in thinking that your blade will always be there where you need it, and carry it not using it every day. Then expect it to not develop some rust if you haven't been treating it right.

If you use a blade like this in EDC, oil it often. This was my mistake. The rust has been removed from mine, and I'm tying a piece of string to my finger.

Lots of blades here are great, but know their limitations.

Yeah, that's a provocative title... I know. No one reads a PSA without the threat of a flame war >:-)

If it helps, the ZDP 189 is awesome stuff. Holds a great edge at a smaller angle (ANGLE IS WHERE YOU SEE THE PERFORMANCE DIFFERENCE PEOPLE!!!) and is generally amazing stuff. I do not for a moment regret buying this knife.

That is all.
 
ZDP will rust, it's not that stain resistant as some of the other steels, a lot of the chromium is tied up making carbides.
 
Dude, you're doing something wrong. ;) It's been 100° plus 20 of the last 35 days here and the M4 Military in my back pocket hasn't rusted even without being oiled. Maybe the 10% humidity here helps with that. :D

I've never figured out how a steel with 20% chromium can rust, but I have seen ZDP do it.
 
Dude, you're doing something wrong. ;) It's been 100° plus 20 of the last 35 days here and the M4 Military in my back pocket hasn't rusted even without being oiled. Maybe the 10% humidity here helps with that. :D

I've never figured out how a steel with 20% chromium can rust, but I have seen ZDP do it.


Oh yeah it will, because a lot of it tied up in the carbides and to get that high hardness you give up some corrosion resistance.
 
Well, hot+high humidity = Me looking like I just fell into a swimming pool. It's sweat and humidity getting to the knife, then gettin lax on the maintenance.
 
Dude, you're doing something wrong. ;) It's been 100° plus 20 of the last 35 days here and the M4 Military in my back pocket hasn't rusted even without being oiled. Maybe the 10% humidity here helps with that. :D

I've never figured out how a steel with 20% chromium can rust, but I have seen ZDP do it.

wow my s30v rusts after about 2 shifts at the bar if im not careful
 
wow my s30v rusts after about 2 shifts at the bar if im not careful

oil everyday! I've started taking my knife out and wiping it off. Along with my cell phone. I can see water on the cell phone screen. If that tells you something about what the knife is experiencing. ALSO, de lawz of nature still apply. If your pants are cool inside at say 75 degrees, and you step into 100 degree heat. The cool steel will attract moisture.
 
oil everyday! I've started taking my knife out and wiping it off. Along with my cell phone. I can see water on the cell phone screen. If that tells you something about what the knife is experiencing. ALSO, de lawz of nature still apply. If your pants are cool inside at say 75 degrees, and you step into 100 degree heat. The cool steel will attract moisture.

this pretty much sums it up. Only virtually rust resistant steel in Spyderco line is H1. All others are rust resistant till a point but sweat is pretty bad because of all salt for almost any steel without taking care of the blade. One reason I like VG10 because in my use it has shown admirable rust resistance. One reason why I carry victorinox and Spyderco VG-10 combination during major heat wave is that those two have proven to need least care during high humidity and high heat weather and I am not convinced plain edge H1 performance so my next H1 knife will be full spyder edge one.

ZDP-189 and M4 are awesome steels but they will stain easily. Far easier than S30V or VG-10 unless taken good care of.
 
Condensation at 25 degree temperature drop? Remind me not to go where you are. The dew point here is usually below 50 degrees even at night.
 
yup, I use my bradley for construction and I get a little rust build up daily, (riding in sweat soaked cargo shorts for 8 hours). I just hit it with some fine steel wool and a little mineral oil. good as new
 
I would be inclined to disagree with the title of this thread.

Sorry you developed some rust, but many good blade steels will rust if not properly cared for.
 
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