[Alt-photo] Re: choice of paper for Pt and gum over Pt prints - wasRe: Re: Replacement paper for Arches Aquarelle

[Jorj Bauer]

Aha, yes, exactly. Thanks!


On Mar 2, 2014, at 6:35 PM, Loris Medici <mail at loris.medici.name> wrote:

> I think Don was specifically asking about your choice of wording:
> siderotype. To me siderotype is a shorter portmanteau term for all the
> iron/iron-silver processes, whether or not they're any of Mike Ware's
> processes  - I believe you've used this term exactly in that meaning.
> 
> Regards,
> Loris.
> 
> 
> 
> 2014-03-03 1:30 GMT+02:00 Jorj Bauer <jorj at jorj.org>:
> 
>>> Both FA and Rives BFK give good siderotype results after being
>> neutralized
>>> in a 10% sulfamic bath.
>>>> 
>>> 
>>> Just curious to know what you mean from the above statement. Is this a
>>> reference to Mike Ware's methodology for palladium printing?
>> 
>> 
>> The sizing in both of these papers is, as mentioned, a chemical problem
>> for siderotypes of any sort.
>> 
>> I've printed cyanotypes, salt prints, and kallitypes on both papers with
>> great success after switching from oxalic to sulfamic acid pre-treatment of
>> the paper to neutralize the sizing.
>> 
>> (Does that answer your question? If not, elaborate and I'll try again!)
>> 
>> -- Jorj
>> 
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>> 
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