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Subject: Re: [Homebrew_PCBs] Solder pot tinning and etch resist

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2008-07-24

On 7/24/08, Mike Young <mikewhy@...> wrote:

> My initial interest was to use the tinning as an etch resist. Come to think
> of it, electroplating tin could be about the same cost as a suitably sized
> solder pot. Since heat isn't involved, it could work with both inkjet and
> toner. I think I'll have a tink on that for a bit...

That's actually done commercially. Sometimes they use gold, tin will
require a compatible etchant that does not etch it away.

It would not have the heat problem either.


ST