Spyderco Forums

Chris_H wrote:Yes, you can remove patina from steel with either a polishing compound or sanding it off. In this thread, though, most want to know how to get it.

As a follow up to this you'll have some difficulty removing it with anything other than elbow grease. The "black" buildup is a process called reduction. The orange/reddish bits are oxidation. The two processes are both reversible, but they're each other's antithesis, so to remove oxidation you usually cause reduction and vice versa. In theory chelation will remove both but in practice chelation agents are not pH neutral so you'll end up with one or the other. Bottom line? What he said. Buff it off. :p

Orion's Belt wrote:I've cut all types of acidic fruits and stuff with my GB and there's no trace of patina. I think the previous owner put some Tuff Glide on it. Time will tell if it will ever develop a patina or not.

I have noticed that my GB is very slow to patina. The Caly SB takes a patina much faster, just like plain old 1095.

Gorgeous patina on the Caly, OP.

feed_the_animals wrote:Gorgeous patina on the Caly, OP.

Thanks. There have been so lovely pics posted.

One of the things I love about blades with a patina is the contrast it gives with a polished bevel. That, with the gradation of tone behind the bevel from stropping, make sharp edge look even sharper! It's like a "1000 yard stare" for knives; "I've seen and done some things".

I've noticed the patina on the SB is prone to reddish change which I prefer to clean off.

D2 forced patina. I have removed quite a bit from the other side, but it is turning out to be quite the ordeal. I think I'm going to just give up and use it. When it starts to look really dark again I will just stonewash it.

Gayle Bradley sees a lot of use. The M4 patina is great!



Ken

I can't wait to get the Air and see the patina on that small gentleman's knife!

TedP

phillipsted wrote:I can't wait to get the Air and see the patina on that small gentleman's knife!

TedP

Yep, looks totally sweet!

Cheers,

Ken

This is after only a couple apples, the SB gets a patina quickly.

I used a lime to get this Patina.



And the other side



I could not get the same effect as you can see. :o

I rarely use any of my collector spydies to cut anything...is it safe to say my caly sb won't patina if it jus sits on my wall?..dry climate

kbuzbee wrote:Gayle Bradley sees a lot of use. The M4 patina is great!
Ken

Is that a natural patina that developed over time? Or did you force it?

I just got my GB and am loving it. I just did the mod where you dremel out a bit of scale and liner to allow unfettered access to the spyderhole and liner lock.

Loving this knife!

If that is the natural patina I am just going to wait it out as it looks good.

George in maine

Fat Goat Forge wrote:Is that a natural patina that developed over time?

I wiped it down initially with white vinegar which left it a light grey, it's proceeded from there. I have a second one I soaked for a couple hours. It looks very similar.

M4 forms the best patina, IMO. I love that about it (though I haven't tried any SB yet)

Cheers,

Ken

xceptnl wrote:D2 forced patina. I have removed quite a bit from the other side, but it is turning out to be quite the ordeal. I think I'm going to just give up and use it. When it starts to look really dark again I will just stonewash it.

Does the D2 steel take to this as well as the superblue/m4? Or is it quite hard to stain?

w3tnz wrote:Does the D2 steel take to this as well as the superblue/m4? Or is it quite hard to stain?

IMO, nothing at all like M4. Three days soaking in vinegar made maybe a 10% difference. I'd classify it as almost stainless.

Ken

gooeytek wrote:

Ooooh, yeaaah! That's one of my grail knives and with that patina- perfect.

*update, got hold of them was an error on their site, have placed an order :D

IMAG0149.jpgIMAG0152.jpg

Got tired of the inevitable and forced my own patina