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Subject: Re: [Homebrew_PCBs] Re: plated through holes

From: Hans Wedemeyer <hans@...>
Date: 2002-12-10

Adam,
I just posted a message about solutions, and would like to know what is
in the "super activated palladium catalyst" and "electroless copper
bath" ?
Also what is the "daily process" for testing and maintaining them ?
How long can these solution be stored ?
How does one get rid of used solutions?
Hans W


"twb8899 " wrote:

> Adam and the group,
>
> If you want to make plated through boards you should consider asking
> a board fabricator to sell you some of their existing chemistry. The
> cost of this stuff is higher than you would think because of the
> minimum quantities that must be purchased when starting new. These
> chemical baths require almost daily testing and replenishment with
> the main culprit being the catalyst and electroless copper baths.
> Some systems don't require an electroless copper bath and use a super
> activated palladium catalyst which is a little easier to maintain.


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