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Subject: RE: [Homebrew_PCBs] Re: Through plating - double sided

From: "Alan Marconett" <KM6VV@...>
Date: 2006-04-12

HI Leon,

That sounds much more desirable. And for through-hole plating, I think I
recall that it requires some sort of "painting" (?) of a conductive material
inside the holes first doesn't it? Graphite comes to mind, but I really
don't know for sure.

The chemical tinning would be great! I should have a URL somewhere about
just such a solution.

Alan KM6VV

>
>
> > HI Jan,
> >
> > I DO like the effect. I really wouldn't want any acid residue left on
> > the board.
> >
> > I see the "tinning" process, but as it involves heat as you describe it,
> > then one must go over EACH trace in it's entirety to tin?
> >
> > I'd really not want to subject the board to any unnecessary trace
> > heading if it could be avoided.
> >
> > I was under the impression that some sort of plating of the tin could be
> > done; either by current or a chemical solution. With current, it would
> > seem
> > that a connection would have to be made to EACH trace, which might prove
> > difficult.
>
> There is a chemical tinning process that just involves immersing the board
> in a solution.
>
> Leon
> --
> Leon Heller, G1HSM
> leon.heller@...
> http://www.geocities.com/leon_heller
>