[Alt-photo] removing old casein from glass

Niranjan Patel nirpat89 at yahoo.com
Fri Jul 21 14:41:27 UTC 2017


Add some IPA to the alkali and you will get a nice gunk remover.  

      From: Christina Z. Anderson via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org>
 To: Alt List <alt-photo-process-list at lists.altphotolist.org> 
 Sent: Friday, July 21, 2017 8:23 AM
 Subject: Re: [Alt-photo] removing old casein from glass
   
Also, Matti, try a soak first in an alkali like ammonia.
Chris

> On Jul 20, 2017, at 4:02 PM, Matti Koskinen via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> 
> 
>> On 20 Jul 2017, at 23:42, Jorj Bauer <jorj at jorj.org> wrote:
>> 
>> Barkeeper's friend, a sponge, lots of water and elbow grease. Works well 
>> for me.
>> 
>> Are any of your casein prints on glass online anywhere? I love making 
>> prints on glass, and so few people make them…
>> 
> 
> hi Jorj, thanks for the info. I’ll try that.
> 
> here’s a link to some casein on glass
> http://www.mattikoskinenphoto.com/casein/index.html <http://www.mattikoskinenphoto.com/casein/index.html>
> 
> -m
> 
>> 
>> On Thu, Jul 20, 2017 at 11:14:59PM +0300, Matti Koskinen via Alt-photo-process-list wrote:
>>> hi all,
>>> 
>>> I found old casein prints on glass plates. As I'm always broke and
>>> short of glass plates, I would like to re-use the plates. What are
>>> best methods to remove the hardened casein?
>>> 
>>> 
>>> and to Alt family tree:
>>> 
>>> I tried my first gum print and cyano probably 1972 (I was 14-yrs
>>> old), I had my grandpa's old book (printed 1921) "Young
>>> Experimenters and Inventors book" by Ilmari Jäämaa and later
>>> inspired by Jalo Porkkala's cyanos on the web. Then the public
>>> library had Keepers of Light, and after that I was hooked. I've
>>> tried cyanos with different methods, gum, casein and tempera. One
>>> casein print I have sold, and several others donated (just to get
>>> rid of them).
>>> 
>>> -m
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Alt-photo-process-list | altphotolist.org
> 
> _______________________________________________
> Alt-photo-process-list | altphotolist.org

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