[hackerspaces] Instructable: Super easy PCB production with vinyl masks
ixrwebmaster at gmail.com
Fri Dec 9 18:32:51 CET 2011
Like Potassium Bromate <http://www.youtube.com/watch?v=zG8D2_sYbUI>!
On Fri, Dec 9, 2011 at 12:24 PM, Harry <harry at deds.nl> wrote:
>> Comment 2. What exactly are you using as etchant? Ferric chloride is
>> the stuff I know. Granted, I wouldn't want to eat the stuff or swim
>> in it,
> Well, my tronix shop sold me a bag of Ammoniumpersulfat. The dutch
> wikipedia page on this stuff says it is used for both etching PCB's _AND_
> it is an add-on to improve bread, known as E923.
> I wish you one very happy breakfast.
> Discuss mailing list
> Discuss at lists.hackerspaces.org
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