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Subject: Re: Old Dynaart equipment and Sodium Persulfate

From: "tda7000" <Tda7000@...>
Date: 2012-02-16

Interesting, when I use magazine paper, that 'bubbling' of the paper is a good sign to me that the transfer was done well. So far it hasn't pulled anything off yet, but then again I don't let it sit around for long before chucking it in the water.

--- In Homebrew_PCBs@yahoogroups.com, Harvey White <madyn@...> wrote:

> We are talking two different things here. if I let the paper "cool"
> or perhaps dry out on the board, it bubbles up and pulls the toner off
> the board. This ruins the board since the toner will never go back
> again properly.

> Harvey
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