S30V DLC Corrosion?

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cletusvandamme
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S30V DLC Corrosion?

Postby cletusvandamme » Thu Oct 15, 2020 8:48 am

I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
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IMG_20201015_164337.jpg
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

prndltech
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Re: S30V DLC Corrosion?

Postby prndltech » Thu Oct 15, 2020 9:03 am

It doesn’t wipe right off with some oil? DLC coating is absorbent. Try a heavy coat of some oil/lubricant and see what happens. You’ll notice it soaks it up.
- Shannon

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cletusvandamme
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Re: S30V DLC Corrosion?

Postby cletusvandamme » Thu Oct 15, 2020 9:06 am

Tried soap, solvents and oil while scrubbing with a toothbrush. It doesnt come off
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

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cletusvandamme
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Re: S30V DLC Corrosion?

Postby cletusvandamme » Thu Oct 15, 2020 9:11 am

No. I have tried scrubbing it with soap, alcohol and oil and it still looks the same
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

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sal
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Re: S30V DLC Corrosion?

Postby sal » Thu Oct 15, 2020 10:33 am

Hi Cletusvandamme,

Welcome to our forum.

Where are you?

sal

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cletusvandamme
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Re: S30V DLC Corrosion?

Postby cletusvandamme » Thu Oct 15, 2020 11:57 am

Hi. Thanks Sal
Im from sweden
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

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Fred Sanford
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Re: S30V DLC Corrosion?

Postby Fred Sanford » Thu Oct 15, 2020 12:26 pm

I bet it comes off with Flitz (metal polish). There are folks here who have Flitz'd coated blades with great luck. I have never done it.
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sal
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Re: S30V DLC Corrosion?

Postby sal » Thu Oct 15, 2020 12:49 pm

Hi Cletusvandamme,

I would try the Flitz metal polish and let me know if that works? Put it on and let it stand for about 15 minutes, then wipe it off.

sal

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Re: S30V DLC Corrosion?

Postby JRinFL » Thu Oct 15, 2020 1:37 pm

Vivi has a related post about a DLC coated blade that will be of interest to you. He had similar stains on his DLC M4 Manix XL.

https://forum.spyderco.com/viewtopic.php?f=2&t=87786
Used to be JR in CT with a much earlier join date. :rolleyes: :spyder: Native in 440v was my gateway Spyderco! :spyder: Wharnie for the whin! Friends call me Jim. As do my foes.

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Re: S30V DLC Corrosion?

Postby vivi » Thu Oct 15, 2020 2:03 pm

JRinFL wrote:
Thu Oct 15, 2020 1:37 pm
Vivi has a related post about a DLC coated blade that will be of interest to you. He had similar stains on his DLC M4 Manix XL.

https://forum.spyderco.com/viewtopic.php?f=2&t=87786
I might have to try Sal's cleaning suggestion on it. This weekend I plan to reprofile that knife and step up my cleaning attempts.
Current carry rotation:

Pacific Salt 2 LC200N | Manix XL M4 DLC | Aqua Salt

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Sharp Guy
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Re: S30V DLC Corrosion?

Postby Sharp Guy » Thu Oct 15, 2020 6:55 pm

Fred Sanford wrote:
Thu Oct 15, 2020 12:26 pm
I bet it comes off with Flitz (metal polish). There are folks here who have Flitz'd coated blades with great luck. I have never done it.
sal wrote:
Thu Oct 15, 2020 12:49 pm
Hi Cletusvandamme,

I would try the Flitz metal polish and let me know if that works? Put it on and let it stand for about 15 minutes, then wipe it off.

sal
I've used Flitz on DLC quite a lot and it works great.
Of all the things I've lost I miss my mind the most!

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Re: S30V DLC Corrosion?

Postby jpm2 » Thu Oct 15, 2020 7:08 pm

cletusvandamme wrote:
Thu Oct 15, 2020 8:48 am
I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
Is it sitting on top of the coating or is it depressions? How does it feel when you run a fingernail across it?

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Re: S30V DLC Corrosion?

Postby curlyhairedboy » Fri Oct 16, 2020 3:37 am

cletusvandamme wrote:
Thu Oct 15, 2020 8:48 am
I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
i've seen this before on my DLC coated blades, in both s30v and 4v. It does come off with liquid Barkeeper's Friend cleaner.
EDC Rotation: PITS, Shaman, CF S90v Shaman, Ikuchi, Amalgam, CruCarta Shaman, DLC Lil Native, Sage 5 LW, 4V Shaman, Watu, Rex 45 Shaman, Rex 45 Lil Native, Caribbean Sheepsfoot CQI, Tanto PM2, Serrated Shaman
Always in Pocket: Hawkbill Dragonfly 2 H1
Fixed Blades: Proficient, Junction, Waterway
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cletusvandamme
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Re: S30V DLC Corrosion?

Postby cletusvandamme » Fri Oct 16, 2020 11:37 am

jpm2 wrote:
Thu Oct 15, 2020 7:08 pm
cletusvandamme wrote:
Thu Oct 15, 2020 8:48 am
I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
Is it sitting on top of the coating or is it depressions? How does it feel when you run a fingernail across it?
It can barely be felt. But here is another picture with different lightning and it looks like rust.
I will try the flitz polish once it gets here
IMG_20201016_192719_copy_2097x1502.jpg
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

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Re: S30V DLC Corrosion?

Postby jpm2 » Fri Oct 16, 2020 7:12 pm

cletusvandamme wrote:
Fri Oct 16, 2020 11:37 am
jpm2 wrote:
Thu Oct 15, 2020 7:08 pm
cletusvandamme wrote:
Thu Oct 15, 2020 8:48 am
I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
Is it sitting on top of the coating or is it depressions? How does it feel when you run a fingernail across it?
It can barely be felt. But here is another picture with different lightning and it looks like rust.
I will try the flitz polish once it gets here
IMG_20201016_192719_copy_2097x1502.jpg
Maybe it's just the light but it looks like a lot of pitting. There's also a lot of white specks on the blade, even in the spots that look like rust. Any idea what the white is?

I usually use fine steel wool to clean up minor corrosion.

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sal
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Re: S30V DLC Corrosion?

Postby sal » Fri Oct 16, 2020 9:46 pm

Hi Cletusvondamme,

I am following the thread. From an R&D perspective, we need to know.

sal

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Re: S30V DLC Corrosion?

Postby Wartstein » Fri Oct 16, 2020 11:35 pm

cletusvandamme wrote:
Fri Oct 16, 2020 11:37 am
jpm2 wrote:
Thu Oct 15, 2020 7:08 pm
cletusvandamme wrote:
Thu Oct 15, 2020 8:48 am
I recently purchased a blacked out yojimbo 2 on the secondary market that came like this.

Has anyone had any success with polishing something like this away?
Is it sitting on top of the coating or is it depressions? How does it feel when you run a fingernail across it?
It can barely be felt. But here is another picture with different lightning and it looks like rust.
I will try the flitz polish once it gets here
IMG_20201016_192719_copy_2097x1502.jpg
Welcome to the forum and greetings up to Sweden (I am in Austria) :)

/ I´m a bit confused: In this pic the blade does not look "blacked out" and coated - ?!
Top three going by pocket-time: Endura 4 in VG 10/Micarta-scales; Stretch 1 in VG 10; Endura 4 in HAP 40

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cletusvandamme
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Re: S30V DLC Corrosion?

Postby cletusvandamme » Mon Oct 26, 2020 8:56 pm

sal wrote:
Fri Oct 16, 2020 9:46 pm
Hi Cletusvondamme,

I am following the thread. From an R&D perspective, we need to know.

sal
Applied the flitz and this is the result
IMG_20201027_024758_27038006111498.jpg
The spotting isnt as visible as before but the DLC has a slight sheen to it now. Guess i rubbed it too much
:spyder:: PM 2, Manix 2, Dragonfly 2, Bradley 2, Yojimbo 2, P'kal, Caribbean, Kapara, Province

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tonijedi
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Re: S30V DLC Corrosion?

Postby tonijedi » Tue Oct 27, 2020 1:44 pm

On my experience, with other brands coatings, when the rust develops there is permanent damage on the coating.

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Re: S30V DLC Corrosion?

Postby JD Spydo » Thu Oct 29, 2020 2:56 pm

Fred Sanford wrote:
Thu Oct 15, 2020 12:26 pm
I bet it comes off with Flitz (metal polish). There are folks here who have Flitz'd coated blades with great luck. I have never done it.
I like your advice>> I would use the FLITZ first off and then I would also use BALLISTOL to give it a good bath with. I've had so many good results with BaLLISTOL over the years.

And if it's really stubborn you might take a soft bristle toothbrush will some "Bar Keeper's Friend" cleanser that you can get at your local grocery or hardware store. Out of those three products you should be able to remedy the problem.


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