[alt-photo] Re: Casein source

[Marek Matusz]

Alberto,
Thanks for a good reference
Marek
 
> From: alt.list at albertonovo.it
> To: alt-photo-process-list at lists.altphotolist.org
> Date: Thu, 14 Apr 2011 07:44:15 +0200
> Subject: [alt-photo] Re: Casein source
> 
> Marek, 
> 
> > I found this interesting link about casein paints. Ammonium carbonate is a solid and well defined chemical. I am going to give it a try
> > http://www.earthpigments.com/art/artists-casein.cfm
> 
> their recipe is similar to Kremer's:
> http://kremer-pigmente.de/Texte/casein.pdf 
> 
> differencies:
> the ratio casein/ammonium carbonate is 4 in Kremer and 2 in EarthPigments 
> (half carbonate in K than in EP),
> the concentration is about 16% in K and 12.5 in EP. 
> 
> If Kremer's recipe works, then a high content of ammonium carbonate is not 
> needed.
> 16% casein is what I used in my single coat prints with natural earth. 
> 
> Alberto
> www.grupponamias.com
> www.alternativephotography.com/wp/photographers/rodolfo-namias-group
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