Please note that HCl has a low boiling point (somewhere just above
50°C). You do not want to heat this etchant too much.
ST
On Sat, Sep 6, 2008 at 7:31 PM, billshat44 <billshat44@...> wrote:
> Update...It finished at 11:00. Barely any copper came off in the
> first 30 minutes, but then the etching made noticeable progress. It
> must be the cool temperature. By the way, the crock pot that I am
> thinking about using is a crock pot that I use for cleaning model
> airplane engines, not making a yankee pot roast.
>
> --- In Homebrew_PCBs@yahoogroups.com, "billshat44" <billshat44@...> wrote:
>>
>> I am currently etching a PCB with 2 parts peroxide to 1 part muriatic
>> acid. It is cloudy and cool here and I am doing it outside to avoid
>> the fumes. It seems like it is taking forever. I'm assuming it is the
>> temperature that is affecting the speed. Has anyone used a crockpot
>> to warm the solution?
>>