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Forcing a patina

Wed Jan 02, 2013 3:29 pm

So I've seen the video on CKTG about using diluted mustard and bubble wrap, and I've heard about people using all kinds of things from rare meat, to mashed up banana, to (one dude claims) their own blood.

I'm considering personalizing a new Konosuke blue 2 by adding a patina and from pics I've seen, I seem to lean towards more aggressive patinas. Here are a couple photos. How would I go about creating something like the below?

Image

How to get the different colors of this pic? Does that necessitate using 2 different reactive agents? And any ideas as to what they applied apply with to get that brush stroke effect?

Image

How in the hell would do you do something like this?

As always, much obliged for any information.

Re: Forcing a patina

Wed Jan 02, 2013 3:51 pm

plastic bag and mustard would do the trick

Re: Forcing a patina

Wed Jan 02, 2013 3:58 pm

Yup, mustard ought to get you started. The pattern comes from different thicknesses, and the puckers that come from the places where the plastic makes contact. Rather than think of this as something you can control, it's probably better to see what you're doing as creating the conditions for happy accidents.

The patina will change over time, too.

Re: Forcing a patina

Wed Jan 02, 2013 4:01 pm

My sister-in-law painted her bathroom with a sponge and it looked something like that. :mrgreen:

Re: Forcing a patina

Wed Jan 02, 2013 5:32 pm

Jean Valjean wrote:
Image

How in the hell would do you do something like this?

As always, much obliged for any information.


Funny you should ask, since that is, or was, my white steel Konosuke wa-gyuto.

The patina is, indeed, mustard. French's yellow, if it matters, thinned a bit with white vinegar, and daubed on with my fingertip. Don't try to do it all at once, but space the daubs about a half inch apart on the first pass, then clean the mustard off and fill in the spaces on the second and third. Heat the blade under hot water and make sure it is clean and dry before daubing. Leave the mustard on for ten to fifteen minutes.

Here's a closeup:

Image

Good luck!

Re: Forcing a patina

Wed Jan 02, 2013 6:39 pm

Haha, awesome Rick. I saw your post on Kitchen Knife Forums the other day. Was trying to explain the concept of a patina to a friend and your pic jumped out. Since I'm not signed up on that forum, I figured I'd start here, and wouldn't be surprised if the poster of one of those two pics found this post. And lo and behold, here you are :-D

Thanks everyone for the prompt replies.

I may undertake this later today...

Re: Forcing a patina

Wed Jan 02, 2013 9:24 pm

Rick that is one sharp looking :shock: knife!

Re: Forcing a patina

Thu Jan 03, 2013 9:23 am

Yup, a finger and your pick of condiments haha. If you want to add a more "meat" blue one you can do what I did with my kono 240 laser. Mashed up banana. Have no idea how or why but it'll turn her blue.
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