[alt-photo] Re: Palladium Failures

[Mark Nelson]

You may not need the tween, especially with Cot 320.

Best Wishes,
Mark Nelson

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On Oct 1, 2011, at 9:59 AM, eric nelson wrote:

> Hi Paul, Yes they are.  The Cot is direct from Bergger, bought a few weeks
> ago and the Platine tests were made on samples provided by B&S in the same
> time frame.  I just ordered some of that batch from B&S which I may regret
> if unworkable.
> 
> I forgot to mention I had done a couple tests with 1 drop of Tween 20 10%
> solution in a drop schedule of 13-3-16Pd on the same 10"x12" sized paper,
> and the blacks are marginally better but still on the verge of solarizing.
> That test is here and is 5
> minutes<http://i190.photobucket.com/albums/z210/emanphoto/palladium/tween.jpg>shorter
> in exposure than the other tests in my first post.
> 
> Re:Mark's comment on contamination...  The other day I accidently left the
> brush in the edta/sulfite bath overnight.  This cleaned the stains from the
> brush nicely, but would that be considered 'contaminated' after a good
> rinsing?
> 
> 
> 
> Message: 19
> Date: Fri, 30 Sep 2011 17:20:51 -0700
> From: "Paul Viapiano" <viapiano at pacbell.net>
> To: "The alternative photographic processes mailing list"
>       <alt-photo-process-list at lists.altphotolist.org>
> Subject: [alt-photo] Re: Palladium Failures
> Message-ID: <6D04916400904549856638E0D9FE753B at dell4600>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>       reply-type=original
> 
> Is this from the new batch of Platine...? Or new Cot 320...?
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