Homebrew PCBs

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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