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From: Christopher Cprek <paxtita...@gmail.com>
Date: Thu, 15 Nov 2012 10:50:25 -0500
Local: Thurs, Nov 15 2012 10:50 am
Subject: Re: {LVL1} Make your own copper etching acid
We already make etching solution from HCl and H2O2. You've got to be
careful of the vapors and only etch in ventilated areas, but the solution will reactivate when more oxygen is pumped through it. I like using it more than ferric chloride. Speaking of which, I made a new etchant tank for the space. But the
Anyone have an aquarium pump they could donate?
Chris
On Thu, Nov 15, 2012 at 10:39 AM, Ben Hibben <the.blens...@gmail.com> wrote:
> Just in case Brad feels like taking his workshop up a notch he can make his > own etching solution: > https://www.youtube.com/watch?v=43Xsh9J7S-g
> Blenster
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