Mcusta materials?

H

Hair

Joined
Nov 9, 2005
Messages
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I have an Mcusta Kasumi, and I took it to work with me tonight.

I showed it to some people, and them put it in the sheath and in my pocket. Sometime between then (7:30pm) and now (5:00am) it got quite a few dots of rust on the scales.

I was surprised it happened so fast. I guess the scales are not stainless damascus like the blade.

I am going to buy some rust remover/metal polish and something to protect the scales from rust (Militec or something similar).

Is it normal for rust to happen this quickly? What are the Kasumi damascus scales made of?

The knife wasn't damp when I put it into my pocket. Does non-stainless steel really just rust in a few hours even when dry?
 
that's a little strange. San diego isn't that humid by a long shot.

Maybe one of your co-workers had something hydrophilic on his hands or something.
 
My work is in Oceanside, and only a few blocks from the beach, but I have brought my carbon steel Opinel to work before, as well as most of my stainless steel knives and never had problems with rust.

The only knife I have ever had with rust was one that I found in the garage after sitting out there for decades.

It could have been something on someone's hands, but I wouldn't know what.

Maybe oil or greese from the machines? Would that do it?
 
Be careful with who is handling your knives. Some people have a lot of acid on their hands. I have kind of mild condition, but any watches I buy will not last more than a year, plating is coming off. I have a coworker with more severe condition and I saw if he touches, anything made out of non-stainless it would rust within a day.
 
greenman466 said:
Be careful with who is handling your knives. Some people have a lot of acid on their hands. I have kind of mild condition, but any watches I buy will not last more than a year, plating is coming off. I have a coworker with more severe condition and I saw if he touches, anything made out of non-stainless it would rust within a day.
Click to expand...

you beat me to it.

I used to work at a machine shop and one time a guy came in and handled some of my projects. I was amazed that later that week I could see hand prints all over them. I could almost make out fingerprints of rust. that was the only time I have ever seen that in my life.
 
Hair said:
I am going to buy some rust remover/metal polish and something to protect the scales from rust (Militec or something similar).
Click to expand...

Forget the Militec. It's a good lube but there are dozens of better things for cleaning and protecting.
 
Thanks guys. I was hoping this was just a fluke.

I'll do a search on rust removers and metal protectors. I can't bare to see my baby like this.
 
Try Blue Wonder Armadillo. It's a wax. Most Mcustas have all metal handles, so putting oil on them is dumb and dangerous. It'd make your knife too slippery to be used safely. The Armadillo is a lower-cost alternative to Renaissance Wax, but it *will* stop rust. I use it on all my non-stainless firearms, as well as the wooden stocks.
 
Do any stores carry it?

I already have some rust removers and protectors in my shopping cart online, but I am looking for something I can pick up at the store in the meantime.

I am thinking CLR. It won't protect it, but I just want to get the rust off.
 
I removed the rust on my Mcusta using CLR. It got rid of the redish surface rust, but there are a few black specs left that won't go away. What are these specs? Are they dangerous? Or purely cosmetic?

I don't mind how they look. I just want to make sure they aren't "under-the-surface" rust spots that will spread and harm the knife. Even if they are purely cosmetic, I would still like to get rid of them if possible. Should I just leave the CLR on for longer? If I leave it on for too long, can it damage the metal?
 
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