Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Roger Blair" <Roger.Blair@...> wrote:
>
> Just a hobby hacker here, not a chemist…
> 
> IIRC, 140F to become effective?. Wouldn’t this be a problem for this application?
> 
> I was going to try sodium perborate monohydrate, until I ran across that info. 
> 
> Thanks,
> 
> Roger


140F is not hard to achieve. I use a fish tank heater in the etching tank I built, I think I paid $3 for a bag of used aquarium accessories at a garage sale, there was the heater, a couple of air pumps, some tubing and other random bits. It will heat the etchant that hot no problem.