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Subject: Re: [Homebrew_PCBs] Re: Laser toner transfer: print to ironing time critical?

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-03-15

On Wed, 15 Mar 2006 13:52:50 +0100, lcdpublishing
<lcdpublishing@...> wrote:

> I have found that the time from transfer to soaking in water is
>
> important for a fast release. I am currently using a heavy gloss
>
> paper. If I let the paper/pcb cool down after transfer, then soak it,
>
> it takes a very long time for the paper to release from the PCB.
>
>
> If, after transfer, I put everything in cool water right away, the
>
> paper releases very quickly by comparison.
>
>
> Chris


maybe because it is hot?
With heavy paper you can speed up the soaking if you scratch the back side
with a wire brush or coarse sandpaper after transfer. This opens up the
surface and the water can get in much faster. A drop of detergent helps
also (sb. suggested dishwasher detergent works even better).

I do not think time between printing and transfer is a problem (once the
toner is cold it doesn't change) but of course it must be kept clean and
free of dust.

ST