I ruined my para :(

C

ctk123

Joined
Feb 1, 2009
Messages
385
I can't believe it, I am beside myself with grief.

I was attempting to darken the forced patina on my D2 paramilitary, and things started going horribly wrong.

(here is where the me being stupid part comes in)
For some reason the patina didn't seem to be coming as fast the second time around, so I left it longer.... and longer.... and longer.... finally when I checked the opposite side of the blade, I noticed a bubble on the blade.

the bubble was the polished layer of the blade surface coming off!! the whole top layer began peeling and flaking off. the edge has large chips, and the whole surface is rough.

It can probably be salvaged with a good sharpening/polishing but the pivot is rough, action gritty. it will never be the same knife though.

I'm embarrassed and ashamed to even post this, hopefully someone will learn from my tragedy. The knife was irreplaceable and my favorite, and I ruined it through my own actions.

I had no Idea how this happened, never heard of anything like it when it comes to forcing a patina. looks like I'll be ordering an s30v para :o
 
Terrible news, sorry for your loss. What substance were you using to force the patina and how long was it in contact with the blade. I left a case cv knife stuck in an apple overnight without any problems. The resulting patina was just sorta okay at best, but I never noticed any negative effect on the blade.
 
ive done my share of accidental and on purpose patina and never had anything like that, even used cold blue and never achieved anything like that, i cant even begin to guess what would cause that???
got picts or a description of the substance used???
ivan
 
cgmblade said:
Terrible news, sorry for your loss. What substance were you using to force the patina and how long was it in contact with the blade. I left a case cv knife stuck in an apple overnight without any problems. The resulting patina was just sorta okay at best, but I never noticed any negative effect on the blade.
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i had it in warm vinegar for about 6 hours... the patina didn't form like it previously had the first time (1st time only took 1.5 hrs), so I let it go, and go and go- big mistake!

and thanks, I can use the condolences, I feel horrible, some people never even got to buy one, and here I destroyed mine acting foolishly.
 
ctk123 said:
I can't believe it, I am beside myself with grief.

I was attempting to darken the forced patina on my D2 paramilitary, and things started going horribly wrong.

(here is where the me being stupid part comes in)
For some reason the patina didn't seem to be coming as fast the second time around, so I left it longer.... and longer.... and longer.... finally when I checked the opposite side of the blade, I noticed a bubble on the blade.

the bubble was the polished layer of the blade surface coming off!! the whole top layer began peeling and flaking off. the edge has large chips, and the whole surface is rough.

It can probably be salvaged with a good sharpening/polishing but the pivot is rough, action gritty. it will never be the same knife though.

I'm embarrassed and ashamed to even post this, hopefully someone will learn from my tragedy. The knife was irreplaceable and my favorite, and I ruined it through my own actions.

I had no Idea how this happened, never heard of anything like it when it comes to forcing a patina. looks like I'll be ordering an s30v para :o
Click to expand...

Give it a lights sanding (not the locking surfaces) and clean/polish it.

Then you will have a bit of sharpening ahead of you.

Sverre
 
Condolences....I've left my ratcutlery blades in vinegar for 2 days without effect....Just got blacker and blacker. When pulled out, much of the black wipped off to a very dark, even grey.
 
powernoodle said:
I bet that Spyderco can stick a new blade on it for a reasonable cost.
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They don't replace blades.

Sorry for your loss, but you might want to try some Barkeepers Friend and possibly some sanding before you just write the thing off.
 
powernoodle said:
I bet that Spyderco can stick a new blade on it for a reasonable cost.
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I bet they can't. As a policy, they do not replace blades. They generally do not stock replacement blades, and it is quite possible they don't have enough CPM D2 to cut another one. Nor are they likely to have another D2 Para left to replace the whole knife.

In my experience, neither CPM D2 nor ingot D2 takes an even patina very well. They are nearly stainless (only short about 1% chromium of being classified as stainless) and tend to spot and pit rather than taking an even layer of oxide.

Sorry you messed up your knife. Live and learn.
 
I can always get another para, but not a D2 one. it took to the initial patina very well:


I decided to go darker, maybe even it out a little, so I lightly polished some of it off, and stuck it in regular vinegar(about a day later). this is the result:



you can see the spider stayed... everything else peeled, you can see some of the orig. finish on the "cpm d-2" logo. I don't know why the outside layer bubbled and peeled...
 
huh? That just looks uneven etching to me..not peeling....Just polish and re-do it. I don't see any damage there....Grease that joint well.
 
Ok, well I've learned something about the no blade replacement thing then. :thumbup:
 
powernoodle said:
If this is the worse thing that happens to you for a while, you are doing ok.
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very true, I am very fortunate that this is all I have to worry about. I can also afford a replacement. putting it in this perspective makes me feel a bit better.

kgd said:
Condolences....I've left my ratcutlery blades in vinegar for 2 days without effect....Just got blacker and blacker. When pulled out, much of the black wipped off to a very dark, even grey.
Click to expand...

which is exactly what I was expecting to happen?

Lycosa said:
Ask for forgiveness and get another one...
and leave it alone!! ;)
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definately leaving the next one alone, though it probably won't be D2 :(

yablanowitz said:
In my experience, neither CPM D2 nor ingot D2 takes an even patina very well. They are nearly stainless (only short about 1% chromium of being classified as stainless) and tend to spot and pit rather than taking an even layer of oxide.
Click to expand...

it's almost as if the whole blade pitted and the top layer lifted off
 
Wow. Looks like they used a chrome plating. A buddy splattered battery acid on a VG-10 endura and it burned thru what appeared to be a chrome plating. Made no sense on VG-10 as it's supposedly stainless but with D2 I can see why they'd want to plate it. Make a savage user out of that thing now. Make it a textbook case of just what a D2 Para can stand. You're liable to have a whole generation of Spyderco freaks begging for a D2 sprint run fifteen years from now when you post a long term review on Bladeforums.
 
the bubble was the polished layer of the blade surface coming off!! the whole top layer began peeling and flaking off. the edge has large chips, and the whole surface is rough.
Click to expand...

Can you post pictures? CPM D-2 is not a laminate and is nearly stainless. I'm not a metallurgist or chemist, but I'm having a hard time imagining that six hours in household vinegar could do this to a CPM D2 blade.
 
4144707613_e588f91aab_b.jpg


I think I would give it a good sanding down before I wrote it off as ruined.
 
With some metal polish paste (or maybe a scouring pad before that) and a good amount of elbow grease, you will most likely be able to restore the blade. It doesn't seem to be that ruined after all.... if the second pic shows how it looks like right now. Don't give up on it, I am pretty sure you can still save your favourite Spydie.

Dennis
 
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