[hackerspaces] Copper Through hole plating
dblmca at gmail.com
Tue Dec 11 07:54:17 CET 2012
On Mon, Dec 10, 2012 at 10:25 PM, Andrew Frazer
<andrew.frazer at stellascapes.com> wrote:
> Hi NSL folks from New Zealand..
> I was interested to see in your wiki, your THrough hole plating project ( http://wiki.032.la/nsl/Through_hole_plating ). I was wondering if anyone could help me with two questions?
> (a) In your project you've Janus Green B as a brightener. I can't find any reference to how much to use
Its a very small amount.. in the neighborhood of 10~50ppm.
> (b) Can anyone make a suggestion as to where i can purchase Janus Green B
Its normally very expensive.. but it seems to be on sale at our local supplier.
The solution works very well the first couple of times, but I had
issues with trying to keep the solution working properly over an
extended period. I should probably have taken a pH reading when I
started and tried to get the solution to stay at that level.
A couple of months ago we decided to get a commercial machine. It
didnt come with chemicals or anodes... so we will be hackerspacing the
materials for this new rig pretty soon.
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