kevinmwolf@... wrote:
>
>
But when I did, I would etch my
> boards in a shallow pyrex dish. I had great success with microwaving the
> entire setup- dish, board and all in the microwave. No sparks, fires or
> splashes. Usually cooked for ~1 min. to get reasonably hot.
> ...
I've had the same experience, no sparks , boiling, or fizzing of any
description when microwaving concentrated ferric chloride, in a open
plastic ice-cream container. My only concern is having my head too close
above the container of steaming etchant while stroking a paint brush
over the PCB. I've done the same with ammonium persulfate.
Gloves are mandatory.