Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hey, has anyone tried using automotive windshield-wiper fluid pumps to
spray etchant? In particular, HCl/H2O2 etchant?

Or maybe taken any apart to see if the fluid path is all-plastic? (no
pesky metal to dissolve?)

Alternatively, is there a suitable small pump available for under say,
$40? I wouldn't need all that much volume/minute, and just enough
pressure to get a nozzle to spray reasonably well.

-Gary