[Alt-photo] Re: Argyrotype on Fabriano Artistico Extra White Soft Press 300gsm (140lb)

[Loris Medici]

Hi Jean,

In short: A 20 minutes treatment in ~9.5% sulfamic acid and a good wash...

You can find more / detailed information at the pages below:

First post of Serdar:
http://www.apug.org/forums/viewpost.php?p=1493591

Second post:
http://www.apug.org/forums/viewpost.php?p=1494359

Thread:
http://www.apug.org/forums/forum42/118153-sulfamic-acid-paper-acidification.html

Regards,
Loris.



2013/5/29 Jean Daubas <jean.daubas at wanadoo.fr>

> Hi Loris!
> Congratulations
> it’s  really a beautifiul colour you get now!
> Could you give some precisions about your de-alkalizing procedure with
> sulfamic acid ( dilutions, duration, etc.)
>
> Alternative cheers from France,
> Jean
>
> From: Loris Medici
> Sent: Tuesday, May 28, 2013 10:06 PM
> To: The alternative photographic processes mailing list
> Subject: [Alt-photo] Re: Argyrotype on Fabriano Artistico Extra White Soft
> Press 300gsm (140lb)
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