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Fine Embellishment Everything from hand engraving and scrimshaw to filework and carving. The fine art end of the knifemaker's craft.

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Old 02-04-2005, 02:38 PM
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resist ink?

hey all i found this ink at school and was wondering if it would work to resist an acid. Its from Graphic Chemical and Ink Company and its called 1 lb perf ink no. 1797c. i ask because its used in printing and i saw something similar to it in another thread


thanks bill


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Old 02-04-2005, 03:01 PM
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You could give it a quick test...

Unless it's expensive, in which case I'd try to borrow a drop or two from someone taking printing classes.


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Old 02-04-2005, 09:23 PM
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Someone is probably going to kill me for this, a plain ol Sharpe (permenant ink) will resist acid. It's a little difficult to get real good definition in your lines, but it works! Just make sure you let it fully dry.

Chris Nilluka
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Old 02-06-2005, 10:17 PM
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will that resist most acids or just the weak ones?



bill


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Old 02-07-2005, 07:00 AM
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also what do you use to remove the sharpie ink after the etching, do you just give it a light sanding?


bill


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Old 02-07-2005, 10:47 PM
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The knife I just finished I used straight ferric acid. I think that's a fairly strong one. Once I was done etching I used a solvent and steel wool to get the ink off. Seemed to work just fine.

Chris Nilluka
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Old 02-08-2005, 06:38 PM
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any chance we could see that ?


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Old 02-08-2005, 09:14 PM
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Well, yeah sure. It was posted last week in the display case...

http://www.knifenetwork.com/forum/sh...ad.php?t=26695

That should take you there. In the picture you can see what I mean as there isn't a lot of real crisp definate lines, but this was my first attempt.
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Old 02-08-2005, 10:13 PM
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thats pretty neat looking, i have one wuestion though the background (of the etch) is kinda tectured how do you put the blade into the bath (verticle or flat on the bottom) also what did you use to hold the acid (something the acid wont eat i assume)?


bill


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Old 02-08-2005, 10:26 PM
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I used a plain old Mason jar, glass. Works great. Due to the size of the blade on this one I had to fill the jar almost all the way to the top, aprox 1/4 to 3/8 inch from top. Then stood the blade up in it, point down. That way any abnormalities from being at the surface of the acid would be hidden by the handle. Now if I am correct its best to have a blade laying flat standing on it's back edge for opptimum effect. I just don't have a container to hold the acid like that. Now if you are doing really intricate work you can only do one side at a time and build up a dam around what you are etching. Montejano gave a great tutorial on this sometime back. If you are going to need much assistance past here I'm afraid you'll have to find someone else, as you have now exhausted all that I personally know about etching.

Chris Nilluka
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