The homebrewpcbs group did migrate from Yahoo! to groups.io; welcome.
NaOH is not at all like bleach (NaOCl) - and I would not try anything that releases the Cl as a gas! It is very dangerous. There are many safer ways to etch copper. (If you think H2O2 is expensive, you should see what chemically burnt lungs or eyes cost!)
You might try NaCl (common table salt) and Hcl or NaCl and white vinegar (acetic acid) to start. A web search will get you started.
Donald.
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On 28-Mar-2019 17:13, Eduardo Costa wrote:
Hi guys,
I wonder if this is same as the yahoo groups that have been ported? Anyways, I'm new to the list, Hi!
I watched the following video from nurdrage:
(10 etchants for pcb)
And I've settled to try with the one using naoh (he actually used bleach, but I have naoh at hand), and hcl. First because where I live hydrogen peroxide is expensive, second because I prefer mixing, using and disposing of, than storing, and third because I have easy access to the chemicals involved. I know the reaction produces Chlorine gas, though, but one offs is something I'm gonna have to live with.
He only mentions this method is not very efficient, which for me might be a pro, as I could control under etching better. My question is if anybody around has ever tried it and can tell me about timings, or any other related tips I should know before trying?
Thanks,
