I really hate brass sometimes.

I love brass on knives. Gives me an excuse to polish them every month or so. As already said WD40 and a Q tip will clean out and slow down the verdigris on the pins. I have never had any verdigris on knives stored over a long period as long as they weren't in leather. I have seen brass cartridges get practically glued into leather loops by it. I also an old S&W break top that had been loaded for a looong time where the bullets had to be pried out due to verdigris.
 
Brass may look OK, often provides a pleasant contrast, but it certainly doesn't smell OK, it reeks:barf::barf:

I've often complained about carbon bladed knives imparting a taste on raw foods that I dislike, no amount of 'patina' seems to improve it. But I suspect it is the food acids reacting with the carbon steel AND the brass to give a funky cocktail:eek:

As for brass only reacting with Stag, think on. Take a look inside a brass lined knife that you haven't used for a good while, not only will there be that whiff of brass oxidation but very likely some 'brass-bleed' and verdigris, nice little lumps of greenery needing removal. Yes, Stag it particularly favours, leeching around pins but it fancies bone too, especially light smooth bone! Some of my GEC Ivory Bones display it despite minimal use and careful storing. A lot must depend on the actual composition of the brass, some examples tarnish really quickly and pit others less so. NS or White Brass does not seem to have this smell, I'm ignorant in chemistry so I know not why. I'd always opt for a knife with NS liners or better,polished stainless in preference to yellow peril brass. I really dislike any knife with brass bolsters, guarantee to make your hands stink, blacken stuff etc it's foul:grumpy: Use metal polish to clean the back of brass lined knives and the pins too, this will keep the verdigris at bay, but it's an endless task, turn your back and little green monsters can pop up:eek::D
 
The brass on all my other old fixed blades, just looks dull, but I don't know what it is about the Frosts Lapplander knives I have, I noticed it as soon as I got them, within a couple of days of being cleaned, they go a heavy brown, almost like they've rusted, and the deposit can become quite heavy. I'm not too bothered about the brass guards on my other fixed blades, but I have to clean these virtually every time I carry them.

Are there different grades of brass? I just spent an hour cleaning the thick brown deposit off 2 of these knives, and the brass still looks pretty grotty in places! :eek: By contrast, my 30-odd year old Wostenholm knives, which have brass bolsters, and just get cleaned in the sink, are just dull, but they polish up fine.

I stored my 110 some time too long in a my toolbox ... It had that green stuff on it that smelled very "unique". I asked a gunsmith as I thought he might know how to handle and take care of brass. He told me, use an old toothbrush and toothpaste to remove it.

I'll give that a try Andi :thumbup:

Nickel silver, aka "white brass" will definitly show a verdigris just like yellow brass, sometimes takes
a bit longer to show it though.

I picked up an old William Rodgers Jack the other day, and all four NS bolsters, and most of the rest of the knife are green! :eek: :D
 
I like brass. I think of it as an "old" metal- at least as far as manufacturing goes. I like that it changes over time, just like a nice patina, or the "mellowing" of stag- and that it needs some care occasionally, as if it were organic. Here's one of the pins on a recent 23 already turning the stag. I love the effects of age and time on things, the wrinkles on the skin, the smell of a good whisky...
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Fine shot there roseskunk:thumbup: As I wrote earlier, brass can look very nice and it's legit Traditional material, no question there. Not sure about the parallel with Whiskey though:D I certainly like to smell and taste that stuff:D The American sort mind, never liked the variant from Scotland or Ireland at all (now THAT might have a brass reek come to think of it:D)

Jack I've been brooding about the very different behaviour of brass in the same environment, I suppose that since it's a mixture/alloy of things then it must depend on the sources of copper et al.the degree of heating, impurities that can enter etc etc. But it certainly does seem to behave markedly differently. Odd. Oh yes, don't you have an expression from t' North about "Where there's muck, there's brass!":D
 
Jack I've been brooding about the very different behaviour of brass in the same environment, I suppose that since it's a mixture/alloy of things then it must depend on the sources of copper et al.the degree of heating, impurities that can enter etc etc. But it certainly does seem to behave markedly differently. Odd. Oh yes, don't you have an expression from t' North about "Where there's muck, there's brass!":D

Yes indeed my friend! :D Thanks for your thoughts :thumbup: I remember noticing it straight away with those Lapplander knives, which came straight from the factory, and all of the original four I had were the same. I've never come across any other brass like it, it certainly is mucky! ;)
 
It strikes me that there are those who just don't like brass because of its smell, tarnish, personal skin chemistry, whatever. And there those that don't mind it.

I'm in the latter camp, but I approach all this with the frame of mind that "every knife is a user knife" — no shelf/closet/safe queens with me. So if a knife picks up some green or brown over weeks or months of use, I don't care much. If it's thick and virulent green verdigris, grown in (improper) storage, then yes, I'll remove it. But a light green tinge? Meh. No biggie. It's just a sign of use for me.

To put this into perspective, I'm the kind of guy who's happy to get the first scratch or two on a new car. Hey, the universe hates perfection: entropy is proof of this, as is toast landing butter-side down.
 
I love brass when it's done right and easy to maintain. I have a polishing cloth with a little Flitz on it I'll rub down the NS and brass on my daily carries to get rid of the fingerprints. I guess the army drilled a love for shiny metal into me. As for the smell, my nose doesn't work, so that doesn't bother me.





 
Now that's a lot worse than brass! :D

Well, when toast lands butter-side down, console yourself in the neat rocket-physics demo it gives. It's simple matter of center-of-gravity vs. center-of-aerodynamic-pressure. When you butter one side of a piece of toast, you offset the toast's center of gravity closer to the surface of the buttered side.

Then as the toast falls, the unbuttered side acts like the fins on a classic rocket to turn the nose of the rocket (or in this case, the heavier buttered side) upwind. Unfortunately, because the toast is falling, the wind it feels is moving upward, thus the heavier side turns downward and — splat.

Now to bring this back on-thread: maybe someone can experiment how well a thin coating of butter keeps verdigris off brass parts..?
 
How rapidly the brass on a particular object tarnishes/corrodes will vary by the elemental composition of the brass in use.

The following chart shows the various composition ratios of the various types of brass produced by a single company. Even within a category, the percentages will vary.

Brass Composition Chart.jpg
 
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Funny... I'd never noticed any problems with brass and actually prefer it over all steel, but after reading this thread I pulled out a Buck 55 that's been sitting. No green on the surface but there's a bit between the bolster and the wood. I normally carry one knife for a few years then move on. Guess the pocket keeps them clean.

Hey, no longer a lurker :)
 
I think a lot has to do with whether the handler is a Secreter (sp?) or not. My brass knives don't tend to tarnish all that much compared to others I've seen.
 
Well, when toast lands butter-side down, console yourself in the neat rocket-physics demo it gives. It's simple matter of center-of-gravity vs. center-of-aerodynamic-pressure. When you butter one side of a piece of toast, you offset the toast's center of gravity closer to the surface of the buttered side.

Then as the toast falls, the unbuttered side acts like the fins on a classic rocket to turn the nose of the rocket (or in this case, the heavier buttered side) upwind. Unfortunately, because the toast is falling, the wind it feels is moving upward, thus the heavier side turns downward and — splat.

I'll ponder that the next time it happens! :D :thumbup:

How rapidly the brass on a particular object will vary by the elemental composition of the brass in use.

The following chart shows the various composition ratios of the various types of brass produced by a single company. Even within a category, the percentages will vary.

View attachment 511444

That's very interesting :thumbup:

Hey, no longer a lurker :)

Welcome aboard Bluedave :thumbup:
 
THAT made me laugh. "Hey Ed, take a whiff of these bolsters...I can't stop."

Now you've done it, Murphy is going to send a few customers your way that return their knives because they don't smell right :).

I can hear it now,

"Derrick, can you look over a knife for me? Now, could you uh, smell it for me?"
 
I like brass rivets and pins OK, maybe even a liner, but give me that nickel-silver for the bolsters, caps and shield.
 
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Leather is tanned with acids, usually tannic or chromic. If acid residue is not completely removed from a sheath, Copper based alloys go green and iron based alloys go red when left in contact with the leather.
 
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