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> I've never had much luck with the Sharpies working well, but I findWell try the uniball white, you wont need to bake!
> they hold up to FeCl a _whole_ lot better if I bake the board a little
> before etching. I leave my boards close to my stovetop's pilot light
> for an hour or several, which gets the boards up to barely touchable
> heat, whatever that is. Roughly 60oC.