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Subject: Re: [Homebrew_PCBs] discoloring copper

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-05-23

On Sun, 23 May 2004 19:26:56 -0000, Dave Mucha <dave_mucha@...>
wrote:

> Hi all, I dried some boards in my toaster over and forgot that they
> were in there. the copper turned a dark color, some a dark blue.
>
> I was wondering if this would actually help toner to adhere to the
> board ?
>
> Dave
>

well, they DO apply some oxyde coating to the "glue side".

But as said before, you should not experience adhereing problems if you
clean the boards properly and have a suitable toner/pressure/heat
combination.

For me the main limitation of toner transfer is the resolution of my old
printer,
and the really annoying prolems with broader traces / big areas.


tomorrow i will go and fetch this inkjet printer.
i will tell you about any results.

ST