From: Ricardo Wildberger Lisboa (wildberger@svn.com.br)
Date: 03/26/03-07:34:45 PM Z
It sounds exciting. Probably it's a good subject to Super Judy deeply
explore on the next PF and you could help her. What do you think Judy ?
Ric.
----- Original Message -----
From: <FOTAR2@aol.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Wednesday, March 26, 2003 2:06 PM
Subject: Re: Fish Gelatin
> John,
> I think fish gelatin is also referred to as "fish glue" or
> "photoengraver's glue". It is a gelatin with a "0" bloom, which means that
it
> never gels but only dries out. It is (was?) used by mixing it with
> Dichromate, exposing it and then by coating it onto copper and zinc
plates
> to serve as a resist for halftone relief etching. I have some formulas for
it
> somewhere if you need more information.
>
> Bob
>
>
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