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View Full Version : Mizuno Honyaki repolish



mainaman
02-18-2013, 01:08 PM
I have Salty's Mizuno from the passaround and when I saw John's thread about the Masamoto honyaki I offered to try and polish the knife to bring out the hamon line.
The knife had patina and some pitting marks from use.

http://i45.tinypic.com/rlw2lf.jpg

I started with green Aoto slurry and polished out the patina and brightened the blade up a lot.
The hamon started to show, at which point I moved on to finger stones.
The result was an OK finish, with milky hamon, that did not stand out too much, at least not as much as I would have liked. I did not feel like grinding finger stones to powder and polishing with it to try and get more contrast.

http://i48.tinypic.com/2eusphl.jpg
http://i47.tinypic.com/dewot2.jpg

The hamon on the front of the knife was hard to photograph and was not as pronounced as the back hamon.

I did not like the natural stone look of the polish so Instead I tried that vinegar / lemon juice method, and I liked the results a lot better.

I did 3 treatments with vinegar and lemon juice in order followed by polishing with 1k Wa powder, then 2k Wa powder.

http://i48.tinypic.com/347jkt3.jpg
http://i46.tinypic.com/24e0x7p.jpg
http://i48.tinypic.com/zl832v.jpg

Continues in next post.

mainaman
02-18-2013, 01:13 PM
http://i45.tinypic.com/5mbsz6.jpg
http://i50.tinypic.com/2zsbgvb.jpg
http://i46.tinypic.com/eb8sug.jpg
http://i45.tinypic.com/2vwejhh.jpg
http://i49.tinypic.com/2zfigw7.jpg

the materials used for the job- Green Aoto, 1k/2k Wa powders, hard rubber block and a cork

http://i49.tinypic.com/314fss7.jpg



This knife can be made to look a lot better but that will require a bunch more work. For perfect finish the knife will have to be sanded with sand paper to get the pitting out, then redone with the fine powders, then etched and polished more with polishing powders. That is a lot of work but if someone is really determined to do it this knife will look fantastic.

franzb69
02-18-2013, 01:18 PM
great post, very educational.

ThEoRy
02-18-2013, 01:24 PM
Hey that's lookin pretty cool so far..

kalaeb
02-18-2013, 01:27 PM
Nice work. All these polishing post are almost making me want to get out the sandpaper.

EdipisReks
02-18-2013, 02:35 PM
excuse my ignorance, but what is wa powder?

Rottman
02-18-2013, 02:38 PM
White Alumina I'd guess...

mainaman
02-18-2013, 02:42 PM
excuse my ignorance, but what is wa powder?
http://www.japanesenaturalstones.com/Wa-Powder-Set-p/225.htm

AlO powder abrasive that Max carries
I have been using those on razors and knives and they work great

Salty dog
02-18-2013, 02:42 PM
:dance:

EdipisReks
02-18-2013, 02:43 PM
that makes sense, thanks. the way it was capitalized threw me.

EdipisReks
02-18-2013, 02:56 PM
http://www.japanesenaturalstones.com/Wa-Powder-Set-p/225.htm

AlO powder abrasive that Max carries
I have been using those on razors and knives and they work great

cool, thanks!

labor of love
02-18-2013, 03:13 PM
mainaman, that looks really really nice! can i ask what kind of towels you use for the powders and to polish? like restuarant kitchen towels? or a shammy?

brainsausage
02-18-2013, 04:11 PM
Nice work!

mainaman
02-18-2013, 04:43 PM
mainaman, that looks really really nice! can i ask what kind of towels you use for the powders and to polish? like restuarant kitchen towels? or a shammy?
I used the hard rubber block and the cork on the last picture.

cclin
02-18-2013, 05:15 PM
mainaman, that looks really really nice! can i ask what kind of towels you use for the powders and to polish? like restuarant kitchen towels? or a shammy?

I use Daikon & wa powder to polish my carbon knives. work great!! Japanese way!!

brainsausage
02-18-2013, 05:25 PM
I use Daikon & wa powder to polish my carbon knives. work great!! Japanese way!!

I like this.

Johnny.B.Good
02-18-2013, 05:38 PM
Nice work!

Patatas Bravas
02-18-2013, 05:44 PM
I did not like the natural stone look of the polish so Instead I tried that vinegar / lemon juice method, and I liked the results a lot better.

I did 3 treatments with vinegar and lemon juice in order followed by polishing with 1k Wa powder, then 2k Wa powder.

Can you explain how this is? What is the purpose of the vinegar and lemon? I just think about these as things for generating patinas, not polishing. Thanks

cclin
02-18-2013, 06:06 PM
Can you explain how this is? What is the purpose of the vinegar and lemon? I just think about these as things for generating patinas, not polishing. Thanks

vinegar and lemon treatment will make hamon line more noticeable!!

labor of love
02-18-2013, 07:21 PM
"treatment"=etching=lemon/vinegar bath??? are these terms interchangeable where youre more or less talking about the same process? or is etching, lemon/vinegar treatment, and vinegar baths different things altogether?

Mike9
02-18-2013, 07:28 PM
Wow - looks great so far. I'd like to bring out the hamon on my Takagi honyaki, but the forging is very rustic looking and I doubt it would show up like yours.

cclin
02-18-2013, 11:08 PM
"treatment"=etching=lemon/vinegar bath??? are these terms interchangeable where youre more or less talking about the same process? or is etching, lemon/vinegar treatment, and vinegar baths different things altogether?
if I remenber it right.....vinegar bath>polish>lemon juice rub>polish-----> repeat 2~ 3 times!!

mainaman
02-18-2013, 11:15 PM
if I remenber it right.....vinegar bath>polish>lemon juice rub>polish-----> repeat 2~ 3 times!!
I rubbed the vinegar as well, it worked just fine.

Miles
02-18-2013, 11:31 PM
Looks great! Nice work!

labor of love
02-18-2013, 11:48 PM
if I remenber it right.....vinegar bath>polish>lemon juice rub>polish-----> repeat 2~ 3 times!!


I rubbed the vinegar as well, it worked just fine.
thank you.