Spyderco Forums

Gotta be careful with the rust removal stuff…


I think it was called ‘Rust-B-Gone’, some sort of acidic remover. I stuck a slightly sticky/rusty bicycle chain in there one day and forgot about it till the next. I was going to pull it out with a wire hook but for some reason it wasn’t coming ...

Gotta be careful with the rust removal stuff…


I think it was called ‘Rust-B-Gone’, some sort of acidic remover. I stuck a slightly sticky/rusty bicycle chain in there one day and forgot about it till the next. I was going to pull it out with a wire hook but for some reason it wasn’t coming out ...

For me, my 15v has exceeded expectations in corrosion resistance. When I worked outside and became drenched in sweat, there wasn't any rust to be wiped off at the end of the day. I did use a light coat of mineral oil though.
After a little bit of use, I did see a super light and beautiful patina ...

For my K390 I keep all exposed metal parts and the pivot area coated with a very light coat of Vaseline. It is paraffin wax and mineral oil and does a really good job. Thiers Issard, the top quality straight razor maker, recommends Vaseline to keep rust away. It is food safe, too.


Thank you ...

I just recently have been experimenting with "browning," the precursor to "blueing" as is found on weapons. Can easily be done at home, but entails boiling the metal to turn rust (red oxide) into magnetite, which resists rust much better than raw steel. But it does give you a dark brown blade ...

I'm excited for the magnamax to drop, something stainless but with the wear resistance of a11 class steels. I hope its not just a s110v where it supposedly only holds a working edge.

I just recently have been experimenting with "browning," the precursor to "blueing" as is found on weapons. Can easily be done at home, but entails boiling the metal to turn rust (red oxide) into magnetite, which resists rust much better than raw steel. But it does give you a dark brown blade ...

Before everyone gets all excited and starts running around in circles in their Tyvek suits, we might want to trade in our respirators for thinking caps.

While I'm no chemist, there are a couple questions that come to mind. Do these volatile compounds evaporate before you even get the knife into ...

My k390 knife has a little bit of a rust problem, even with a thicker coat of mineral oil. Today, I was working outside for a little bit in the humid Florida sun. Naturally, I was drenched in sweat, as well as my knife.
So my question is, what do you use to help prevent rust that holds onto the ...

Hans, your experience sounds a lot more similar to mine than OP's.

Me and Sal both took Police 4's to about 10 degrees per side without issue on common EDC tasks. I ran a 15dps microbevel, not sure about him.

My typical sharpening method for K390 was to establish a 10dps 300 grit bevel that ...

I can't wait! I've been checking on it everyday since late may.

Just one question, is it fine to use ceramic to touch up or remove a small burr super high hardness/carbide steels like k390/15v? I've definitely heard that ceramic will not abrade the harder carbide types. https://scienceofsharp.com/2019/11/03/c ... n-maxamet/

Hans, your experience sounds a lot more similar to mine than OP's.

Me and Sal both took Police 4's to about 10 degrees per side without issue on common EDC tasks. I ran a 15dps microbevel, not sure about him.

My typical sharpening method for K390 was to establish a 10dps 300 grit bevel that was ...

Yes those angles are quite obtuse for cardboard. You’ll see a big improvement in cutting ability, and edge retention when you drop to 15 dps. K390 can handle that.

I still suggest you to cut off the old edge before setting the new bevel.

K390 in my experience with household recycling lasts me 2 ...

Im gonna update the original post of the heel measurements.
The updated heel specs are 0.020" bte average (0.019" and 0.021"). The average dps is actually 17.42°(16.99°and 17.85°) I know 17.42 dps is a quite a bit less than 15 in terms of edge retention, but it shouldn't be so black and white that ...

To the OP - have you tried a fixed angle system to eliminate your sharpening technique from the equation (to a greater extent anyway)? Also you might not be stropping enough - I find I sometimes have to strop up to ~30 (very light) strokes to deburr my K390. I use 1 or 5 micron diamond pastes on ...

I found out about this yearly photo contest a few days ago. It was fun looking at everyone else's submissions as well as taking photos of something again for the first time in a few years!
My photo is of a Para 3 lw in MagnaCut. It is my first Spyderco knife as well as my go-to knife for when I go ...

the thought of K390 being overrated immediately makes me question the OP's sharpening methods and materials.


I will admit, my sharpening technique can be a lot better. Is it possible that a very small, undetectable burr on the k390 will initially pop hairs and whittle, but mush over in a few ...

I do know that a coarser edge will cut cardboard for longer, but even at 600 grit, I feel that it shouldn't be completely dull after a few ten feet of cardboard.
Also, I'm going to edit my post to include the geometry of my 15v manix.

Just curious, how quickly does your s110v loose sharpness? Does it stop shaving within a few ten feet of cardboard and will it still cut printer paper by the end of the week?