Re: bubbles in gelatin (fwd)

The item number is 78600, the product name is "Defoamer," and
Kremeer's address
and phone are:

Kremer Pigments, Inc.
228 Elizabeth St.
New York, NY 10012
Tel: 212.219.2394

Information courtesy of Joe Arkins.

Sandy King

>The following is an interesting tidbit of information from a discussion on
>the altphoto list dealing with bubbles forming in gelatin sizing. Since
>it is a topic related to eliminating bubbles in gelatin tissue emulsions I
>thought I crosspost it here.
>
>- Wayde
> (wallen@lug.boulder.co.us)
>
>---------- Forwarded message ----------
>Date: Thu, 12 Oct 2000 01:48:04 -0400
>From: Sil Horwitz <silh@cfl.rr.com>
>To: Judy Seigel <jseigel@panix.com>
>Subject: Re: bubbles in gelatin
>
>At 2000/10/11 10:47 PM -0400, you wrote:
> >Kremer Pigments makes a defoaming agent which is very helpful in suppressing
> >bubbles in gelatine emulsions. Only a few drops per 500 ml. batch
>are needed.
>
>There is a long list of mfrs of polysiloxane defoamers (plus others) at:
>
>http://www.siu.edu/~weeds/adjuvants/antifoam_agents.htm
>
>The polysiloxanes (and most variants) are inert in most photographic
>solutions. If you have a real need, the big chemical companies represented
>would probably send you a few ml sample rather than try to sell a small
>quantity.
>
><<sil>>
><silh@psa-photo.org>
><webmaster@psa-photo.org>
>Sil Horwitz, FPSA
>Technical Editor, PSA Journal
>check out <http://www.psa-photo.org>
>personal page: http://home.earthlink.net/~silh/
>
>
>_______________________________________________
>Carbon mailing list - Carbon@opusis.com
>http://rmp.opusis.com/mailman/listinfo/carbon
Received on Thu Oct 12 11:14:52 2000