Be very carefull with Ag, Silver loves to form dendrites if there is
any moisture present (humidity or otherwise).
Dave Miller
--- In
Homebrew_PCBs@yahoogroups.com, "alan00463" <alan00463@y...>
wrote:
>
> Next, I need to get a conductive substance to plate the copper board
> with, after etching. Either immersion or wipe-on or
electroplated.
> I am guessing wipe-on Ag powder would be the easiest.
>
> However, I must use ∗cheapest∗ rather than easiest or best.
>
> I have 12 V gel cells, low-amperage DC wall warts, a low-amperage DC
> dial-a-voltage regulator, a low-amperage +- 12 VDC power supply,
and a
> 24VDC-7A power supply, in addition to regular 115VAC mains.
>
> From surfing the web, I see that I can plate Cu with tin, silver, or
> nickel. Polyurethane is another "easy" option for a
> non-chemically-bonded copper protectant, I guess.
>
> So what based on your experience is the cheapest material that will
do
> a good job?
>
> Alan
>