andrewm wrote: > John Griessen wrote: >> I'm liking the transparency and low hassle and low toxicity of HCl/H2O2,
> I have been using CuCl for a bit over a year now and all I ever need to > do is measure the acid levels and > density and then top up with HCl or water to keep it in spec. > > Will still stain like FeCl, but you never need to neutralise it or throw > anything away. Thanks for that recipe and experience. The volume doesn't grow? Air regenerates completely? What's the rate like? I'm through 1 oz copper in <7 minutes at 105 deg F with HCl/H2O2 etchant. Good for groups of proto boards. John Griessen -- Ecosensory tinyOS devel on: ubuntu Linux; tinyOS v2.0.2; telosb ecosens1 _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
