To clarify, the board was turning pinkish, like it does if you wipe a plated board with FeCl, starting to etch. --- In Homebrew_PCBs@yahoogroups.com, <homebrew_pcbs@yahoogroups.com> wrote: On Tue, 03 Sep 2013 23:46:25 -0000, you wrote: >Pink? should be green or some shade of. Pink was the color of the copper, not the solution. Harvey >Sam > >Read this. > http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/ > > > > >--- In Homebrew_PCBs@yahoogroups.com , <twgray2007@...> wrote: >> >> OK, I tried bubbling air through the mixture for about 24 hours with no change. I heated to about 40 C and placed a PCB in just to test and after about 25 minutes it had just started to turn pink from etching. The volume was at about 1/2 gallon and to this I added about 1/2 cup of HCL and left the board in for another 30 minutes with little change. >> >> I think I will now put a lot of copper wire in, at 40 C and let it run to see if it will "take off", as you put it. >>
Message
RE: Re: [Homebrew_PCBs] Re: CuCl etchant - an update
2013-09-04 by <twgray2007@...>