Chris,
I do not know of a supplier in Canada, but this link -->
http://www.web-tronics.com/printed-circuit-board-supplies.html has
inexpensive pre-sensitized positive photo etch boards. Using a black light
will do a good job on these and you do not need a dark room. These can
withstand a little time in a room with the lights on with no damage. The
developer used is Anhydrous Sodium Metasilicate. They sell it as their part
number posdev.
There are probably other very good sources, but I see no one has answered
your question as yet. Hope this gives you a start in your search.
-Mike
----- Original Message -----
From: "Chris Graham" <Chrisgr@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, May 11, 2003 10:53 AM
Subject: [Homebrew_PCBs] Photosensitizing boards
> What's the easiest way to photosensitize copper boards and get high
quality
> results? I'm making double sided boards with traces down to 10 mils.
>
> Laminate photoresist film? Applying some liquid/spray solution?
>
> Can anyone suggest sources or product names? I'm in Canada, but any
> suggestions would be appreciated.
>
> Thanks.
>
> - Chris Graham
>
>
>
>
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