Stripped my CGNMFSH!!!

SpyderPhreak

Rocketman for hire
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Apr 13, 2004
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So, I haven't been terribly satisfied how this Tanker Gray coating has been holding up on my NMFSH. If you recall, this is the "Gray" that my wife dubbed "Unicorn Sparkle" Tanker Gray. Nobody who has seen it in person thinks it is really very gray. Instead, it looks brownish. I've never been real thrilled with it, and from day one I have planned on stripping it once it had mostly worn off. However, this particular coating has worn strangely as compared to any other Bussekin I've owned. As you can see in the "before" pictures, the coating didn't really wear smoothly as usual. Instead, it was almost peeling off in flakes while chopping, and it wasn't wearing the same on both side either. Bizzare. :confused: Also, this is the thinnest (and one of the smoothest) Bussekin coatings I've personally come across. Anyway, here is what it looked like earlier today before I got the urge to just strip it off:

CGNMFSH_Prestrip1.jpg


CGNMFSH_Prestrip2.jpg


CGNMFSH_CoatingPeel.jpg


While I have scraped the blade a little bit on a couple nails while chopping, you can see the strange way the coating was coming off, especially the one big spot on the opposite side from the logo. I have no idea how that happened. I was using it to split firewood while camping not too long ago when at some point that spot of coating came off. You can see some other marks on the other side where it looks like the coating looks like it has peeled at the edge of the normal coating wear. Anyway, I got tired of looking at it and went ahead and stripped it today. Here's how it turned out right after stripping and scrubbing it down with hot water and Dawn dish soap to clean it:

CGNMFSH_Strip1.jpg


CGNMFSH_Strip2.jpg


Not too shabby, but you can see some oxide spots on it and a little bit of staining in a few places. No biggie though. I think this makes it pretty obviously why Busse didn't want to offer the competition finish on these. But to add to the strangeness of this particular coating, it did not come off of the blade anywhere near as easily as any other Bussekin I've previously stripped. I used the same stripper I've always used, and typically after about 10 minutes the coating has shrunken up and lifted right off of the knife's surface, no mechanical help needed. All you usually have to do is wipe the knife down with a paper towel and you're done. Not this one, oh noooo. After soaking for 20 minutes, the coating had only just slightly softened. It took a fair bit of work to scrape any off with a nylon pan scraper, and even with some good elbow grease it was tough going. I got as much as I could get off, then coated the knife with more stripper. Initially I thought maybe my stripper was getting old, but I sprayed a bit on an old dresser sitting outside and the paint was falling off in only 5 minutes. It finally took me scrubbing the knife down with a brass and then a nylon brush in order to get this coating off. I think I had to reapply the stripper 6 or 7 times. FAR more work than any other I've dealt with.

Anyway, after cleaning and taking pics, I oiled it up with a little bit of mineral oil and took a couple more pics (below). It certainly looks better than it did with the coating, and I'll probably leave it like this for now. There is some kind of oxide layer (or maybe some kind of primer) still on the blade, so it isn't as shiny as say a satin finished blade, but I didn't feel like going any further with it today. Eventually, I'll put a ScotchBrite belt on my sander and polish it up all nice and pretty. It'll do for now though.

CGNMFSH_StripOil1.jpg


CGNMFSH_StripOil2.jpg


I'll try to get some better pictures in some good light tomorrow. Have a good weekend folks! :cool:
 
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I stripped mine right after I got it and used it hard. While it was coming off even I just didn't like it and was to cheap to order it in satin. It was very hard to remove tho with Klean strip gel. Took me a while. But she is pretty under the coating.
 
I stripped mine right after I got it and used it hard. While it was coming off even I just didn't like it and was to cheap to order it in satin. It was very hard to remove tho with Klean strip gel. Took me a while. But she is pretty under the coating.

Yeah, that's the stuff I used. Never had so much trouble with it before. Who knows.
 
You got lucky, It looks really good.
Stripping INFI can be hit or miss.
That one is going to clean up nice with the Scotchbrite belts
 
You got lucky, It looks really good.
Stripping INFI can be hit or miss.
That one is going to clean up nice with the Scotchbrite belts

I suspect that ALL of the CGNMFSH's look this good, and that is why the competition finish was not available (I asked too). Between the full-flat grind, the NM treatment, and what looks to be a surface ground blank (see the machining marks on the ricasso?), there isn't much metal on this knife that wasn't machined at some point. It will look just about as good as a Satin finish once I hit it with the ScotchBrite belt! :cool: :D
 
I think what we find under a stripped blade is not oxide or primer, but a chemical conversion treatment. The bare metal after heat treat and final grind is dipped in a bath of chromate or phosphate or something to alter the surface metal for corrosion resistance and to improve the paint adhesion
 
I think what we find under a stripped blade is not oxide or primer, but a chemical conversion treatment. The bare metal after heat treat and final grind is dipped in a bath of chromate or phosphate or something to alter the surface metal for corrosion resistance and to improve the paint adhesion

I would completely agree. To clarify what I originally stated, a phosphate, chromate, or any other kind of etch for that matter is what I consider a surface "primer" for coating. The chemical conversion process you mentioned is also known as "etching primer".
 
Au natural at it's finest...I own a DC, but haven't cut anything but air, first Busse and all
 
I had similar flaking issues with my Rodent Solution. I ended up using a razor blade to get most of it of. Even without stripper it came off with moderate elbow grease. That's some good looking INFI and reminds me I need to get cracking on my NMSFNO project.
 
I suspect that ALL of the CGNMFSH's look this good, and that is why the competition finish was not available (I asked too). Between the full-flat grind, the NM treatment, and what looks to be a surface ground blank (see the machining marks on the ricasso?), there isn't much metal on this knife that wasn't machined at some point. It will look just about as good as a Satin finish once I hit it with the ScotchBrite belt! :cool: :D

The most important areas for me are around the handle.
If they are covered in dimples and machine marks, its next to imposable to clean it up without removing the slabs and doing a ton of material removal.
As your knife stands, I am sure your final results are going to be near perfect.
 
I suspect that ALL of the CGNMFSH's look this good, and that is why the competition finish was not available (I asked too). Between the full-flat grind, the NM treatment, and what looks to be a surface ground blank (see the machining marks on the ricasso?), there isn't much metal on this knife that wasn't machined at some point. It will look just about as good as a Satin finish once I hit it with the ScotchBrite belt! :cool: :D


Given that the AnSHBM are full height flat ground, i'm hoping that the CG models will clean up just as well as your knife here.
 
Given that the AnSHBM are full height flat ground, i'm hoping that the CG models will clean up just as well as your knife here.

I suspect you are correct.

Here are a few new pictures from today. Not as good as I'd hoped as it was cloudy a lot of the day, but they show the machine marks better (the flat light might actually be better for this anyhow).

CGNMFSH_StrippedSun1.jpg


CGNMFSH_StrippedSun2.jpg


And a quick glamour shot while I was doing a little chopping up of some limbs I took off of one of the trees today.

CGNMFSH_StrippedGlamour.jpg


I'm sure impressed with this knife overall! Might just be the perfect compromise between a pure chopper and a general purpose camp knife. :cool: Here you can alos see that I didn't strip the coating off of the handle section of the knife. I masked it off at the end of the hump on top, and after the talon hole on the bottom. No need to strip here IMO.
 
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