We do not make PCB's, we make the chemicals that make the PCB's.

I have been to the UK many times on business, and found this out.  Typically,
the gold was electroplated, and was at least 40, and I seem to recall 60
millionths of an inch thick, (1-1.5 microns), and it may have been more, and
yes, it did alloy with the Copper, but it took a long long time to alloy with
that much Gold, and it soldered very well.

So, IF you must put Gold on to Copper, make sure it is REAL thick.

Rudy Sedlak
RD Chemical Company

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