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> This is a stupid question but I havent found the solution. My supply1 ounce double-sided pcb etches in 6-8mins room-temp in a bubble etcher.
> of etchant comes in plastic bottles. I want to preheat it before
> using. No, noway am I using my microwave. I have a heat gun and
> figure if I could find glass product such as pyrex that had a lid for
> storage I'd like to use it any suggestions?