Homebrew PCBs

Hi Phil,

I got it from an internet chemical supplier, along with the acid and 
copper oxide. Their minimum order is something like 50UKP so it is not 
practical to just get the H2O2 from them.

Les

Phil wrote:

> --- In Homebrew_PCBs@yahoogroups.com, Les Newell <lesnewell@f...> wrote:
> 
>>Hi Phil,
> 
> ...
> 
>>                                                         A teaspoon of 
>>100volume H2O2 is enough to get it etching well again. If the solution 
>>starts fizzing when you add the H2O2 and has a chlorine smell you have 
>>added too much.
>>
>>Les
> 
> 
> Thanks, Les.  Where did you get your H2O2?  
> 
> Phil
> 
> 
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