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Subject: Re: [Homebrew_PCBs] Re: What's wrong with etching PCB's

From: Steve Greenfield <alienrelics@...>
Date: 2002-05-03

I was going to add Cool-Amp's website to the Bookmarks, but it
seems to be gone.

http://www.cool-amp.com/

Says No DNS entry found.

Does anyone know if they are still in business?

Yep, those $1.29 laundry markers are exactly the same as the $5.29
"etch resist" pens. The Staedler 313 red ink works much better,
though.

Steve Greenfield

--- hans@... wrote:

> I touch up
> anything I
> need to using a Laundry marker pen, the kind that people pay $$$
> for
> that are called etch resistant ! Marks-A-Lot works fine for
> large areas
> and Sharpie markers #13601 for mid width and Sharpie #37000 for
> fine
> work.

> Silver plating I use Cool-Amp powder, it's expensive but far
> easier to
> use than the Tin-It crap... Cool-Amp costs about $40 for 4 oz.
> however I
> have been using it for a long long time and have over half
> left... I
> reuse the same rag pad and sometimes simply wet the pad and use
> the
> residual from the last session.


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