Homebrew PCBs

This is actually cupric chloride etching. Once you have the etchant 
started you don't even need the H2O2. Just bubbling air though it for a 
couple of hours does the trick. Do a google search for cupric chloride 
etchant.

I use it and it works well. It does not stain like FeCl and doesn't 
smell as bad either. The down sides are that it takes slightly longer to 
etch and the etchant will only do a couple of boards before it needs 
regenerating by bubbling air through it or adding H2O2.

Les


ballendo wrote:
> In Homebrew_PCBs, Stefan Trethan <stefan_trethan@g...> wrote:
> 
>>Get yourself some muratic acid and H2O2 and then etch the boards.
> 
> 
> 
> This is new to me. Is there a reason it doesn't get mentioned more 
> often? We talk about FECL and the two persulphates... But not this.
> 
> What are it's good and bad points? Besides being really cheap and 
> widely available<G>
> 
> Thank you in advance,
> 
> Ballendo
> 
> 
> 
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