[hackerspaces] Copper Through hole plating

[B F]

Interesting stuff.
FWIW Aldrich offers 32680-25G (25 g quantity) for <$30, but it's
back-ordered right now (so they say).

More info at http://www.chemspider.com/68607

On Wed, Dec 12, 2012 at 9:46 AM, M <dblmca at gmail.com> wrote:
> http://www.jim.or.jp/journal/e/pdf3/43/07/1593.pdf
>
> It acts as a leveler... a brightener, in plating speak.
>
> Cheers,
>
>  -M
>
>
> On Wed, Dec 12, 2012 at 6:40 AM, B F <bakmthiscl at gmail.com> wrote:
>> I am a chemist, with limited experience in pickling and etching.  As
>> such, I don't see what the green dye was for in the formula.  Does it
>> play any active role?
>>
>>
>> On Tue, Dec 11, 2012 at 1:54 AM, M <dblmca at gmail.com> wrote:
>>> 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.
>>> https://www.spectrumchemical.com/OA_HTML/chemical-products_Janus-Green-B_JA110.jsp?minisite=10020&respid=22372
>>>
>>> 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.
>>>
>>> http://www.flickr.com/photos/nullspacelabs/8096189458/
>>>
>>> Cheers,
>>>
>>>  -M
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