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Video Request!

Ideas & suggestions for videos

Re: Video Request!

Postby LtBadd » Wed Jun 15, 2016 5:22 am

Otto Nobedder wrote:
Coldman wrote:Nice clear macros Steve. What did you etch with?


Dilute sulfuric acid.

The metal was dressed to 600 grit, then I submerged them in "Alumabrite", diluted to about 25%, for maybe five minutes.

It was that, or try an even more dilute solution of phosphoric acid in a rust-blck primer that would have had other impurities to deal with, so I tried this first and it worked.

Steve S

Steve, would this solution be okay to etch any alloy?
Richard

Insert witty, sarcastic, or philosophical remark here.
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Re: Video Request!

Postby Otto Nobedder » Wed Jun 15, 2016 6:43 pm

This solution work a treat on stainless, as well. I've used it full-strength on SS, seeing results in less than a minute.
GEDC1588.JPG
GEDC1588.JPG (136.28 KiB) Viewed 304 times


On carbon, it's important to rinse thoroughly as soon as you've achieved the desired contrast, then wipe it dry and give it a quick shot of WD-40 or similar to prevent rusting of the now very vulnerable surface.

I've not tried it on aluminum yet.

Steve S
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Re: Video Request!

Postby LtBadd » Wed Jun 15, 2016 7:29 pm

Otto Nobedder wrote:This solution work a treat on stainless, as well. I've used it full-strength on SS, seeing results in less than a minute.
GEDC1588.JPG


On carbon, it's important to rinse thoroughly as soon as you've achieved the desired contrast, then wipe it dry and give it a quick shot of WD-40 or similar to prevent rusting of the now very vulnerable surface.

I've not tried it on aluminum yet.

Steve S

very cool, thanks
Richard

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