Has anyone tried this? I cannot see how the silver will deposit onto an unprepared fibreglass PCB, If it does then it would cover all the board! or am I missing something? from my assaying days as far as I am aware Hydrochloric [muriatic] acid will not disolve silver, nitric acid will, and a combination of the two [aqua regia] will disolve gold and silver and pretty much any other metal.
I may be way off, or i dont understand this process, perhaps someone more enlightened could shed some light on this, as I am also interested in thru hole plating.
--- In Homebrew_PCBs@yahoogroups.com, "John Anhalt" <janhalt@...> wrote:
>
> The mixture you describe is the Tollens reagent/reaction. As mentioned earlier in this thread, there are modified versions of that reagent that make more durable silver coatings and may therefore be superior for plating holes.
>
> John
>
> ----- Original Message -----
> From: Jeff Heiss
> To: Homebrew_PCBs@yahoogroups.com
> Sent: Sunday, December 02, 2012 12:26 AM
> Subject: RE: [Homebrew_PCBs] Re: Want to plate drill holes for your double sided PCB's
>
>
>
> A youtube video shows plating surfaces using silver nitrate, ammonia, sugar,
> and sodium hydroxide. Will this work for via plating or would the silver
> rub off too easily? The video description says "thin layers of silver can
> be wiped off with a cloth if the silver goes where you don't want it.
> Thicker layers can be removed by applying hydrochloric acid." If it could
> work, a big positive is it does not require hole activation and thus have no
> limit on hole/via diameter.
>
> http://www.youtube.com/watch?v=hUX_cpFWNso
>
> _____
>
> From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
> On Behalf Of John
> Sent: Friday, November 30, 2012 3:05 AM
> To: Homebrew_PCBs@yahoogroups.com; smilingcat@...
> Subject: Re: [Homebrew_PCBs] Re: Want to plate drill holes for your double
> sided PCB's
>
> OK already seen your reply to others.
>
> John
>
> From: John
> Sent: Friday, November 30, 2012 7:51 AM
> To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com>
> ; smilingcat@... <mailto:smilingcat%40earthlink.net>
> Subject: Re: [Homebrew_PCBs] Re: Want to plate drill holes for your double
> sided PCB's
>
> I'd be interested in some details on how you are going to do the through
> hole plating.
>
> Thanks
> John
>
> From: smilingcat90254
> Sent: Thursday, November 29, 2012 10:54 PM
> To: Homebrew_PCBs@yahoogroups.com <mailto:Homebrew_PCBs%40yahoogroups.com>
> Subject: [Homebrew_PCBs] Re: Want to plate drill holes for your double sided
> PCB's
>
> Oh someone wanted to know what am I plating?
>
> I was going to plate my drilled out hole with copper so that on double sided
> PC, i'm not having to stick a piece of wire and solder both top and bottom
> copper.
>
> You could also use it to plate tin if you want. But your plating solution
> would have to be different.
>
> And minor correction At 5 Amp you can plate 6"x6" double sided PCB not
> 6"x12"
>
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>
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>
> [Non-text portions of this message have been removed]
>
>
>
>
>
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>