the cheapest is solder paste, probably.
cool amp siver is expensive, but a little goes a long way.
ST
On Mon, 09 Jan 2006 16:16:31 +0100, alan00463 <alan00463@...> 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