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 Post subject: Acid etching
PostPosted: Sat Dec 07, 2013 6:31 pm 

Joined: Thu May 24, 2012 6:20 am
Posts: 1330
Taz posted a pic in this thread of an etched Tanaka Sekiso: best-looking-gyuto-in-class-t4457.html

Shaun offers a Hiromoto thinned and etched on the webstore: http://www.chefknivestogo.com/feuphietandt.html


How you do that?

Type of acid, duration, surface prep, etc?


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 Post subject: Re: Acid etching
PostPosted: Sat Dec 07, 2013 7:52 pm 
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Joined: Thu Apr 19, 2012 8:34 pm
Posts: 1423
Absolutely I'd be happy to share the process with you, give me a few to get a couple of picture together. :)



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Shaun Fernandez

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 Post subject: Re: Acid etching
PostPosted: Sat Dec 07, 2013 10:25 pm 
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Joined: Wed May 16, 2012 4:42 pm
Posts: 3399
Location: USA... mostly.
CEDAR <> Start sourcing your Ferric Chloride now...



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 Post subject: Re: Acid etching
PostPosted: Sat Dec 07, 2013 10:36 pm 

Joined: Thu May 10, 2012 9:21 pm
Posts: 449
Melampus wrote:CEDAR <> Start sourcing your Ferric Chloride now...


its pretty easy get. Radio Shack carries it.


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 Post subject: Re: Acid etching
PostPosted: Sat Dec 07, 2013 11:06 pm 
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Location: USA... mostly.
kalaeb wrote:"its pretty easy get. Radio Shack carries it."

That's what's been said, but I can't find it at my local Shacks.



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 Post subject: Re: Acid etching
PostPosted: Sun Dec 08, 2013 1:32 am 

Joined: Thu May 10, 2012 9:21 pm
Posts: 449
I have never tried this one, but Amazon has it too (cheaper and larger quantities than RS:


http://www.amazon.com/gp/aw/d/B005T8Y20W/ref=mp_s_a_1_1?qid=1386466124&sr=8-1&pi=AC_SX110_SY165_QL70


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 Post subject: Re: Acid etching
PostPosted: Sun Dec 08, 2013 5:07 am 
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Location: CT
I prepped the surface using Norton non woven abrasive pads (green, maroon and grey) to get a nice, clean satin finish on the blade and remove old patina so it will etch evenly. From there, I washed thoroughly in hot water and soap and then dried thoroughly using paper towels. Do not touch the blade with your hands since they will redeposit oils onto the blade. Very important to have a clean/greaseless/oil free surface!!

I mix the Acid and water (Always add acid!!!!) in a large plastic container and dunk in for a minute or two, remove and look to make sure it's even. You can go longer, but the cladding will take on a galvanized type look if you leave it in too long. The mixture doesn't have to be very strong; you want the solution somewhat weak so it will etch the metals slowly and etch the metals differently. If it's very strong, it won't show much contrast. If the etch is even, go inside, wash off the blade and scrub it to remove any loose oxidization and you can repeat the etch a few times until you get the look/contrast you want. Once it's done, I do a final washing and then wipe completely dry and let sit overnight before using.


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 Post subject: Re: Acid etching
PostPosted: Sun Dec 08, 2013 5:42 pm 

Joined: Wed Nov 28, 2012 7:42 pm
Posts: 32
Location: Nashville, TN
Hey Taz. Does the etched blade leave any residue on food you are cutting? Does it stay pretty stable if you are good about immediately cleaning/drying your knife?


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 Post subject: Re: Acid etching
PostPosted: Sun Dec 08, 2013 5:44 pm 
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Location: CT
I haven't noticed any residue on the food. One the Tanaka, I tried coating it with mineral oil and letting it sit for a few minutes then wiping it off, let sit overnight and then wash the next morning. Didn't seem to make a difference. I usually wait a bit to use the knife after etching to let the metal kinda rest. It seems pretty stable, but you can see the iridescent colors of the patina on the blade when you hold the blade at different angles.


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 Post subject: Re: Acid etching
PostPosted: Thu Dec 12, 2013 6:26 am 

Joined: Thu May 24, 2012 6:20 am
Posts: 1330
Does any acid work, is there something unique about Ferric Chloride?


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