Rust already? Barkeeper's Friend safe on my Techno?

[dub]

Hey guys,

I was cleaning the blade on my Techno earlier after cutting some fruit and I noticed some small spots of what appeared to be rust (orange-like color) on I guess, the tang of the blade (where the Spyderco/Taichung etch is). I must of not wiped the blade as well as I should have there after washing it.

What can I use to removed the spots? I have used Barkeeper's Friend in the past on some cutlery knives a long time ago. Is it safe on the stonewash/CTS-XHP?

Annndddd also, is it normal for this thing to create spots like this so quickly? I've only really used it for a week and I've cut some mango, pineapple and some apples. I've read that stonewashed blades rust quicker? Is that true or false?

Thanks guys!

[JD Spydo]

Hey guys,

I was cleaning the blade on my Techno earlier after cutting some fruit and I noticed some small spots of what appeared to be rust (orange-like color) on I guess, the tang of the blade (where the Spyderco/Taichung etch is). I must of not wiped the blade as well as I should have there after washing it.

What can I use to removed the spots? I have used Barkeeper's Friend in the past on some cutlery knives a long time ago. Is it safe on the stonewash/CTS-XHP?

Annndddd also, is it normal for this thing to create spots like this so quickly? I've only really used it for a week and I've cut some mango, pineapple and some apples. I've read that stonewashed blades rust quicker? Is that true or false?

Thanks guys!

Before I would use Bar Keeper's Friend on the blade I would try a really high grade metal polish. FLITZ is my favorite and I also use the FLITZ polishing cloth along with it and I have great results. Now I'm also a big fan of Bar Keeper's Friend cleanser as well but if you do elect to use it I would be gentle and use a soft bristle toothbrush or something similar as to not put abrasion marks on it.

Albeit I've never had a problem with BKF leaving scratch marks on anything I've used it on. It's more of a chemical/acid based cleaner rather than an abrasive one like Ajax or Comet can be.

You can get FLITZ at most of your major Hardware store chains throughout the USA. Here in Kansas City, MO USA Earth we have ACE, TRUValue and Sentry hardware chains and they all carry FLITZ. But do be careful if you don't want to leave any kind of tarnish or mark on the blade. You just can't go wrong with FLITZ.

[Bladekeeper]

Is it not more likely the acids in the orange started to cause "patina" rather than rust.
Citrus fruit is notorious although beadblasted and stonewashed blades do rust quicker.
Something to do with surface volume being larger than on polished SS or to that effect marine glide or tuff cloth has worked great since I started using it.
If you give it a good wipe before using for food should be fine non toxic obviously .

[dub]

I did cut into an orange yesterday and went to clean it today after cutting a mango and there I saw the spot.

Does CTS-XHP patina?

Has anyone tried anything else to get rust off? I've read an onion works.

[Bladekeeper]

I couldn't say however 8crmov13 is a ss but I have a beadblasted blade of the same knife.
The bead blast one has had rust spots the non blasted is fine.
The stonewashed I'd imagine is the same there is technical reasons as below although someone more educated in the science of metallurgy would have to explain.
:) .

[Invective]

Does CTS-XHP patina?

CTS XHP is supposed to be the hardness equivalent if D2 with the stainless ability of 440C

[kbuzbee]

CTS XHP is supposed to be the hardness equivalent if D2 with the stainless ability of 440C

Translation - no, I wouldn't expect patina to form on XHP.

The explanation on stone wash/higher surface area kinda makes sense but I found a rust spot (actually caused a pit) on a VG10 blade I'd polished. It wasn't microscopically smooth but it was a clean mirror reflection. I was very surprised....

Once you get the rust off I'd Tuff glide the blade to prevent a reoccurrence.

Ken

Ken

[dub]

How did you remove the rust? I kind of want to try an onion!

[araneae]

Barkeepers friend should work fine. Also, wd-40 will usually remove light surface rust. The orange or the pineapple are likely responsible as both are very acidic. If you are going to use the knife for food, I wouldn't use tuf-glide. Mineral oil is food safe and cheap, neither are necessary if you just rinse the blade off after you use it on fruit. Or buy an H1 blade dedicated for fruit use :P.

[kbuzbee]

How did you remove the rust? I kind of want to try an onion!

On mine, it was near enough the edge I reprofiled it. Pit gone.

Ken

[Holland]

I'm not much help, but i do find it odd that it developed a rust spot that fast...