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Re: CUCL Temperature , etch time ?????

2006-01-05 by Bruno St-Laurent

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@g...> wrote:
>
> On Tue, 03 Jan 2006 20:06:54 +0100, Bruno St-Laurent <bsl88k@n...>  
> wrote:
> 
> >
> >
> > Thanks a lot for all these info !!!!, right now mine is bright 
clear
> >
> > green but etch really slowly, so i'll get H2O2 30% !!!!
> >
> >
> > Thanks
> >
> >
> > Bruno
> >
> 
> 
> As long as there is not enough cucl in the tank even when bright 
green it  
> will not etch well. But it will etch, very slowly, until it gets 
darker,  
> which might be before the board is finished ;-).
> 
> ST
>

Stefan about the H2O2 30% , you really mean 30% not volume 30 ????

cause today i found H2O2 volume 30, it's only 9%!!!!!

Bruno

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