The peeling copper may well be the result of chemical deposition before electrical deposition begins. Try turning on the electricity before immersing the object to be plated.
Donald.
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----- Original Message -----
> From: "smilingcat90254" <smilingcat@...>
> To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> Sent: Monday, December 10, 2012 1:45:25 PM
> Subject: [Homebrew_PCBs] Re: plating holes with an exploding wire
>
> Sometimes, it peels off. Some times, I can use a knife point to try to
> peel and it stays put. I think we are missing something on the surface
> treatment of the copper cladding.
>
> To save on copper, electrical need and to keep copper cladding surface
> from being marred (without the brightening organic agent, plating can
> become very uneven), I use my .drl file, print a negative image,
> transfer the image then plate. This way the copper cladding does not
> get plated. Toner is non conductive thus copper under the toner does
> not get plated. And only the holes get plated.
>
> smilingcat
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Jeff Heiss" <jeff.heiss@...>
> wrote:
> >
> > I did experiments of plating copper clad using the same recipe but the
> > copper coating was easily rubbed off. How is your coating
> > durability?
> >
> >
> >
> > Jeff
>