Some of my acid etching and stonewashing experiments: whatcha think?

Joined
Apr 10, 2010
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141
On the first one, I tried to paint a tiger stripe pattern with nail polish before etching. I only did the handles and the clip. On the second knife, I just did a random splatter pattern on the handles and clip, again using nail polish. I covered the blade completely in wax and tried to cut a pattern into the wax with a razor blade. I etched all four parts on that one. On knife number three, I only etched the blade, and stonewashed the scales and clip. I was trying to sort of mimic that composite look with nail polish. The fourth one was my first try, and i tried using four different resists, only one of which worked well, so it came out pretty ugly. I ended up re-etching the blade and handles completely, with no resist, and then just stonewashing the whole thing. I like the look of the stonewash even better after its darkened from the acid. All in all, none of them came out quite the way I envisioned, but I had some success and learned quite a bit. I didn't like any of the blades really. If I do any more, I'll just be etching handles and leaving the blades alone. I'd like to try stonewashing some more blades, but I just hate to ruin a factory edge like that. None of these mods caused any fit issues, with the exception of the last knife. It developed a little bit of vertical play in the lock, probably from the double etch and stonewash treatment on both lock surfaces. Anyway, what do you think? Which one is your favorite? Which patterns/finishes do you like best? Any suggestions? Next, I think I might try etching a stripe pattern and then stonewashing. We'll see. (Sorry, I know this is a LOT of pictures.)

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On the last picture, I like the bottom two. I think with a little more detail and a "better" blue, then they would really 'pop'.
 
Idk how your doing it but iv done a few acid etches and you could try pcb etchant solution and nail polish for your coating.

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I use PCB and nail polish. It's difficult to get clear, sharp boundaries that really "pop" because the acid always manages to seep in under the edges of the polish a little bit. I've been experimenting with different resists to try to get more detail and more controlled patterns, but short of some adhesive vinyl stuff and a CNC machine to cut out shapes and such, I think I'm limited to randomized splattery stuff. I can't seem to create sharp corners with any consistency. Is that what you mean by more detail?

As for the color, that seems to be a property of the steel itself. It's really a dark grey; it just looks blueish in the picture. And the different parts etch differently. Blades always come out darkest, and handles lightest, regardless of the amount of time I leave them in the acid. A different acid might produce a slightly different color, but I haven't tried anything else yet. With the materials I have at present, that's as dark as it gets.
 
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