Let's take a look inside my Police 4

Discuss Spyderco's products and history.
User avatar
JRinFL
Member
Posts: 723
Joined: Wed Nov 18, 2015 10:30 am
Location: Unfashionable West End of the Galaxy

Re: Let's take a look inside my Police 4

Postby JRinFL » Fri Oct 11, 2019 8:44 pm

You could try a firearm coating such as Duracote, Gun-Cote, or similar.
Used to be JR in CT with a much earlier join date. :rolleyes: :spyder: Native in 440v was my gateway Spyderco! :spyder: Friends call me Jim. As do my enemies.

User avatar
The Mastiff
Member
Posts: 5335
Joined: Sun Jun 04, 2006 2:53 am
Location: raleigh nc

Re: Let's take a look inside my Police 4

Postby The Mastiff » Fri Oct 11, 2019 8:51 pm

I'm not convinced that coatings prevent corrosion. I think they do, in some cases, help, but Salt water and sweat can be caustic and find ways to infiltrate. Even humidity near a coast is always trying to eat your knife blade.
You have done a lot more testing than any of us and probably with more coatings than we know about so I'll take your advice. I was trying to think of a quick and dirty way to test for galvanic corrosion. To be quite honest I have never seen the issues that Vivi and some others have and I live in an area that can have me soaked through my shirts in 10 minutes outside spring through fall.

By the way Sal I noticed that for at least the last year the Spyderco's have been coming with less residual buffer grit and other gunk I used to clean off when I first took the knife out of the box to treat and then lube it prior to use. If there was anything that shouldn't be there I would probably have found it by now.

Joe

vivi
Member
Posts: 6912
Joined: Mon Oct 29, 2007 8:15 am

Re: Let's take a look inside my Police 4

Postby vivi » Fri Oct 11, 2019 9:41 pm

sal wrote:
Fri Oct 11, 2019 8:26 pm
I'm not convinced that coatings prevent corrosion. I think they do, in some cases, help, but Salt water and sweat can be caustic and find ways to infiltrate. Even humidity near a coast is always trying to eat your knife blade.

sal
Sal, for me the DLC offerings have been a game changer.

I rust pretty much anything. I've rusted my Leatherman Micras real bad. I've rusted phones. I've rusted the hardware on a CTS204P Military within 24 hours.

My first experience with a DLC Spyderco was with a Para 2 DLC. The blade never rusted even though I carried it every summer IWB or in sweaty pockets. My sweat is so corrosive the liners, lock bar, hardware, stop pin were all coated in multiple mm of rust. I could scrape out big gobs of it with a toothpick. The blade never did rust.

So I then looked for a model with coated liners. The Manix XL fit the bill.

The XL DLC is the only Spyderco I have never rusted anywhere, aside from salts.

I have never seen a folding knife be capable of being carried year round with rusting unless its your H1 line. It has been a complete game changer for me.

If you're interested I could send you my Manix XL and Police 4. I don't know if there is anything you could gain from taking a look at them, but if you're interested the offer is there.

I know I'm the only one that feels this strongly about DLC in this context, but looking at the photos in this thread, having a non salt knife remain impervious to corrosion is a pretty big deal in my book. Offering a knife in DLC makes me a lot more likely to purchase a given model due to my experiences.

I know your experience and knowledge on the matter eclipses mine many times over, but for what it's worth, this has been my experience with the DLC models from your company.

marty_bill_
Member
Posts: 178
Joined: Tue May 24, 2016 7:03 pm
Location: Wyoming

Re: Let's take a look inside my Police 4

Postby marty_bill_ » Mon Oct 14, 2019 5:37 pm

The P4 DLC job I had https://www.razoredgeknives.com/ do is completed! I don't have it in hand yet, but when I do I'll give you some shots of the liners.
439.jpeg
438.jpeg

vivi
Member
Posts: 6912
Joined: Mon Oct 29, 2007 8:15 am

Re: Let's take a look inside my Police 4

Postby vivi » Mon Oct 14, 2019 9:42 pm

oh man...that looks really good!

VashHash
Member
Posts: 3837
Joined: Mon Aug 03, 2009 2:49 pm
Location: Louisiana

Re: Let's take a look inside my Police 4

Postby VashHash » Tue Oct 15, 2019 6:21 am

That DLC coating came out really well.

User avatar
Ez556
Member
Posts: 386
Joined: Tue Nov 20, 2018 8:16 pm

Re: Let's take a look inside my Police 4

Postby Ez556 » Tue Oct 15, 2019 7:32 am

JRinFL wrote:
Fri Oct 11, 2019 8:44 pm
You could try a firearm coating such as Duracote, Gun-Cote, or similar.
Just as a data point from personal experience, Gun Kote is superior to Duracoat, but Cerakote is FAR superior to either (all professionally applied).
Likes FRN
:spyder: MEMBER OF THE CRUWEAR NATION :spyder:
sal wrote:
Sun Aug 04, 2019 7:28 am
But in reality, there is nothing quite like a gun. And it has been said, "The only way to stop a bad guy with a gun is a good guy with a gun".
Sumdumguy wrote:
Tue Oct 08, 2019 4:35 am
Does that complexity decrease the simplicity? Not at all.

vivi
Member
Posts: 6912
Joined: Mon Oct 29, 2007 8:15 am

Re: Let's take a look inside my Police 4

Postby vivi » Tue Oct 15, 2019 10:43 am

I was going to order a Police lightweight last night but I held off after seeing this update. I might send my G10 P4 in for the same treatment instead of buying a new knife. This would end up being my most carried knife if the DLC works as well for corrosion resistance as it does on my Manix XL.

User avatar
ZrowsN1s
Member
Posts: 4983
Joined: Sat Jan 30, 2016 5:08 pm
Location: San Diego, California USA

Re: Let's take a look inside my Police 4

Postby ZrowsN1s » Tue Oct 15, 2019 1:03 pm

Ooh, that looks good!
Carrying 3 knives is perfectly normal :D
-Matt

The Meat man
Member
Posts: 3949
Joined: Wed Jan 03, 2018 8:01 pm
Location: Missouri, USA

Re: Let's take a look inside my Police 4

Postby The Meat man » Tue Oct 15, 2019 1:09 pm

Nicely done!
- Connor

"What is a man profited, if he shall gain the whole world, and lose his own soul?"

vivi
Member
Posts: 6912
Joined: Mon Oct 29, 2007 8:15 am

Re: Let's take a look inside my Police 4

Postby vivi » Wed Oct 16, 2019 9:31 am

Well I finally got around to working on my Police 4 today.

I sanded all the parts down with 800 grit sandpaper and knocked off the rust, saving the liners for last since I knew they'd be the most work.

I roughed off the worst of the corrosion, focusing on the pockets of red rust and areas that appeared to be pitting. What I saw surprised me. It seems the liners had developed a patina in addition to the rust. I tried to capture it in photos and a short video:

Image
Image
Image
Image

https://streamable.com/fl16v


Convinced the liners are made of carbon steel, as I've never seen stainless liners behave this way, I got an idea. Why not force a patina with vinegar?

I tested out my theory by splashing the corner of a liner with white vinegar and waiting five minutes. Already saw a reaction similar to my A2 and 1095 knives.

I'm letting them soak for a few hours while I run errands. I'll post photos of how they look before I make any changes to them.

Excited to pocket the P4 again either way. I've missed this knife.

User avatar
JonLeBlanc
Member
Posts: 1333
Joined: Sun May 13, 2018 8:00 am
Location: Louisiana

Re: Let's take a look inside my Police 4

Postby JonLeBlanc » Wed Oct 16, 2019 10:55 am

marty_bill_ wrote:
Mon Oct 14, 2019 5:37 pm
That's really beautiful! One of the few coated blades I could actually get behind lol
My collection so far: 52100 Military (2); 52100 PM2 (2); 52100 Para3; Stretch2 V-Toku; KnifeWorks M4 PM2; BentoBox M390 PM2; BentoBox S90V Military; Police4 K390; S110V PM2; SS Delica AUS-6; Wayne Goddard Sprint VG-10
Wish list: Hundred Pacer; Sliverax; Mantra; 52100 PM2 SE; Kapara

FK
Member
Posts: 427
Joined: Fri Sep 24, 2004 10:33 am
Location: CT USA

Re: Let's take a look inside my Police 4

Postby FK » Wed Oct 16, 2019 11:56 am

Carbon Steel Liners ????
Really happy I held off purchase of P4 in favor of the new PM2.

Regards,
FK

vivi
Member
Posts: 6912
Joined: Mon Oct 29, 2007 8:15 am

Re: Let's take a look inside my Police 4

Postby vivi » Wed Oct 16, 2019 7:11 pm

The 2 hour vinegar soak gave the liners a cloudy gray look:

Image

I dropped the blade in with the liners for the first half hour and the liners reacted quicker than K390. Granted they don't have the same surface finish, but that still makes me wonder if they used some sort of carbon steel liner.

marty_bill_
Member
Posts: 178
Joined: Tue May 24, 2016 7:03 pm
Location: Wyoming

Re: Let's take a look inside my Police 4

Postby marty_bill_ » Wed Oct 16, 2019 8:29 pm

FK wrote:
Wed Oct 16, 2019 11:56 am
Carbon Steel Liners ????
Really happy I held off purchase of P4 in favor of the new PM2.

Regards,
FK
I'm not trying to rain on your parade, but you are missing out on maybe the best knife in Spyderco lineup. And now with the LW Police no rust problem. I got the LW version as well and this thing kicksass!

User avatar
sal
Member
Posts: 13463
Joined: Fri Sep 24, 2004 12:00 pm
Location: Golden, Colorado USA

Re: Let's take a look inside my Police 4

Postby sal » Wed Oct 16, 2019 9:17 pm

Hi Marty_bill,

Very nice.

When I design a knife more to please my own odd preferences, like the Shaman or the P4, I am finding that some you you have similar odd likes. I think it's because of the leaning more to function.

sal

GarageBoy
Member
Posts: 1431
Joined: Sun Nov 14, 2004 6:49 pm
Location: Brooklyn NY

Re: Let's take a look inside my Police 4

Postby GarageBoy » Thu Oct 17, 2019 4:51 am

Why would it not be your typical 420 liners? So weird

marty_bill_
Member
Posts: 178
Joined: Tue May 24, 2016 7:03 pm
Location: Wyoming

Re: Let's take a look inside my Police 4

Postby marty_bill_ » Thu Oct 17, 2019 2:39 pm

sal wrote:
Wed Oct 16, 2019 9:17 pm
Hi Marty_bill,

Very nice.

When I design a knife more to please my own odd preferences, like the Shaman or the P4, I am finding that some you you have similar odd likes. I think it's because of the leaning more to function.

sal
Sal,
Yes, I've been through a pile of knives. And 1 always finds it's way back into my pocket. Yep, the P4. For whatever reason it just works. It works without fail.
Thanks,
Marty

marty_bill_
Member
Posts: 178
Joined: Tue May 24, 2016 7:03 pm
Location: Wyoming

Re: Let's take a look inside my Police 4

Postby marty_bill_ » Fri Oct 18, 2019 3:42 pm

Well I got it back today and it was so worth it!
20191018_153514-1440x1920.jpg
20191018_153520-1440x1920.jpg
20191018_153527-1440x1920.jpg
20191018_153533-1440x1920.jpg

User avatar
Enactive
Member
Posts: 1118
Joined: Thu Dec 20, 2018 8:19 pm
Location: Wet side of Washington

Re: Let's take a look inside my Police 4

Postby Enactive » Fri Oct 18, 2019 3:54 pm

marty_bill_ wrote:
Fri Oct 18, 2019 3:42 pm
Well I got it back today...
Wow that looks good. I don't usually like coated knives, but that backlock and H tho! :spyder:

Holy smokes! :cool:

Presumably, he masked the lock interface?


Return to “Spyderco General Discussion”

Who is online

Users browsing this forum: Majestic-12 [Bot], Menipo, Oogie, PeaceInOurTime, SLOSpyder, tonijedi and 38 guests