Homebrew PCBs

Will do, anybody know if the storage vessel needs to be dark?  Does sunlight dilute it?

Bob

--- In Homebrew_PCBs@yahoogroups.com, Russell Shaw <rjshaw@...> wrote:
>
> On 28/10/12 16:38, dubob4432 wrote:
> > Thanks.
> >
> > When you say 'bubble air through it' you mean like w/ a fish tank air pump w/
> > those 1 way valves?  Do I know how much air I need based off the color and if
> > so, what color am I looking for?  In the past I had some weak acid and it
> > turned teal blue but this stuff is staying bright lime green.
> >
> > Also, yes, I did heat it up.  I was using a small 'tupperware' dish in a
> > larger one that was filled w/ water ~120-140F.
> >
> > When you say a bit slower, I assume you mean than the first batch and not my
> > slow 45min marathon etch?
> 
> Using my FeCl bubble etcher which has degenerated to a copper-chloride etcher, 
> doing a double-sided 1oz copper pcb is well done by 12 minutes, without heating.
> 
> Add a bit of HCl acid every few months. The FeCl/water ratio started at 1:1 a 
> few years ago. Keep the tank covered when not in use.
>