Carbon Knife cleaning ?

Draven

Native
Jul 8, 2006
1,530
6
35
Scotland
What do you mean by "sort of rusting effect? Is it actually reddish-brown rust, or a dark gray-black colour? If it's gray-black I don't think it's anything to worry about, it'll generally protect the blade from rust I believe :)
If, however, it is rust, there are multiple ways to remove it. It could probably be sanded off, or I think I've heard of people using vinegar, and there are also commercial rust-removing products. I'm sure someone more knowledgeable than me will chip in though, so don't take my word for it :D
 

singteck

Settler
Oct 15, 2005
565
6
52
Malaysia
www.flickr.com
I think you have to get used to the fact that it's not going to be shinny like stainless steel. Dull gray colouring on the knife is fine and that's the way the knife will be if you use it. If it's powdery then just clean it with steel wool or a kitchen green scrub..... not sure what it's called :p

singteck
 

alpha_centaur

Settler
Jan 2, 2006
728
0
45
Millport, Scotland
The only way I've found to stop my mora rusting is either to coat the blade with a fine coating of oil (veg or mineral) or to soak the blade in vinegar overnight to give it a protective corrosion coating.
 

Longstrider

Settler
Sep 6, 2005
990
12
59
South Northants
Hi David, As alpha_centaur hints in his post, what you have on your blade might be a "patina" rather than rust. If it's brown and rough, it's rust. If it looks like a dark staining but is smooth then it's patina. If it is patina I wouldn't worry about it affecting the knife long-term other than asthetically. Many people will apply a patina to a carbon blade on purpose as it actually helps to keep the blade from rusting. (See.. http://www.bushcraftuk.com/community/showthread.php?t=18377 It might not look all nice and silver shiny, but it will do the job it was designed to do just as well.

If it is patina and you want to get rid of it a good polish with something like Autosol Chrome Polish will soon have your knife all shiny and silver again. If it's rust you might have to resort to some very fine wet-n-dry paper before the polish will be of much use to you.
 

8thsinner

Nomad
Dec 12, 2005
395
1
44
London
I would recommend any one get a burr stone designed for skiing edges, They are made of fine sand stone, they are perfect for cleaning up the crap build up on a knife of high carbon, just make sure you rinse and dry the knife properly after use, otherwise you burn through a lot of the stone.
 

Wayland

Hárbarðr
First thing I do with a carbon blade is wrap it in tissue paper, soak it in vineger and leave it overnight.

It'll come out somewhere between grey and black in the morning. Just rinse, dry and oil with some cooking oil and it'll keep that finish for ages with just an occasional oiling.

Works for me... :D
 
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addyb

Native
Jul 2, 2005
1,264
4
39
Vancouver Island, Canada.
If you're that concerned about corrosion, just by a stainless Mora knife. The steel is equally as good in almost every aspect, except that it's tougher to sharpen and isn't as flexible when you baton. At least, that's what I've found. I don't really bother too much with carbon blades anymore. Maybe I'm strange like that!

Adam
 

Biddlesby

Settler
May 16, 2005
972
4
Frankfurt
Don't expect your knife to be shiny clean all the time; unless you are willing to mollycoddle it; like stainless knives are. Surface blemishes won't really matter in my opinion. Of course if it is rust on the cutting edge that is a different matter.

I have no experience that leads me to choose carbon blades over steel - I just blindly copied the general advice!

How effective a patina will cola really give?
 

clcuckow

Settler
Oct 17, 2003
795
1
Merseyside, Cheshire
The only time I have bothered removing patina is if it is from finger print on knives I have made for someone else and if I cannot be arsed to get my bench grinder with my polishing mop on out I just wrap some 2500 grit paper around a pencil eraser then in one direction only (and in a straight line) run it down the blade, those block that us for cleaning solder contacts work as well. I then give it a coat of renaissance wax and buff off so I don't leave anymore finger prints ;)

That said with my own knives I never bother, it part of the charm of having carbon knives I even once faked a hamon on an opinel with raw potato once for a laugh :D
 

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