From: robert (robert@RobertSchaller.net)
Date: 03/01/02-11:11:08 AM Z
Dear All,
I've been using an etch-bleach bath of peroxide and cupic chloride.
Anyone have any idea how it works? Might other metal salts be effective?
Are there other etch-bleach baths that, like this one, attack the gelatin of
the emulsion itself?
Robert Schaller
on 2/27/01 9:03 PM, Judy Seigel at jseigel@panix.com wrote:
>
>
> On Tue, 27 Feb 2001, Jeffrey D. Mathias wrote:
>> ... However, hydrogen peroxide is also
>> sometimes used as a contrast agent with some alt-process coatings, and
>> in this use accurate knowledge of the solution strength is required for
>> consistent results.
>
>
> Well that figures... Only one I've heard of, BTW, is for some pt/pd
> coatings. Are there others?
>
> Judy
>
>
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