Homebrew PCBs

> > Next, Has anyone found a good US supplier of the "commercial" THP
> > chemicals, like the Bungard chemistry Markus uses? Is Bungard sold in
> > the USA?
> >

I don't think Bungard is sold here. You can easily purchase THP chem, if you
are an industrial account, and can jump through all of the regulatory hoops,
and don't mind 55 gallon drums. I have never found a small volume supplier
of THP chem.

I order from Alpha, and you can get just about any chemicals you can think
of. However Alpha sells analytical chem, not tech grade, and as such are
really really expensive. Also, they do some background checking, as for
obvious reason's they don't want their chem used for WMD or drugs. As such,
they really screen their customers, even if you order something inert.
Unfortunately, the prices and screening may keep things out of the hobbyist
realm. http://www.alfa.com/alf/index.htm

Another source which is easy to deal with, and pretty cheap is elemental
scientific. However you would need to prepare the solutions from scratch so
to speak.  http://www.elementalscientific.net/

Then theres think and tinker.
http://www.thinktink.com/cgi-bin/cart.pl?db=condink.dat&category=Conductive_Plating_Ink
http://www.thinktink.com/cgi-bin/cart.pl?db=copplat.dat&category=Acid_Copper_Consumables

Good luck
Ron