February 2004 Alt-Photo-Process-L: Re: preserver for gum

From: Kate Mahoney ^lt;kateb@paradise.net.nz>
Date: 02/27/04-01:36:57 PM Z
Message-id: <002301c3fd69$10dc91f0$ed26f6d2@yourif5zypd2xn>

The traditional preservative is mercuric chloride (scares me), but I use a little formaldehyde, maybe 10ml in my 500ml bottle of gum. This has proved successful so far - my solution is kept in a dark cupboard, but not refrigerated.

Kate
  ----- Original Message -----
  From: BobWicks@aol.com
  To: alt-photo-process-l@sask.usask.ca
  Sent: Saturday, February 28, 2004 3:17 AM
  Subject: Re: preserver for gum

Have you ever tried Peroxide? I checked this in one of my formulary books and have used it to stop spoilage in paper clay and perhaps it would work with Gum and it is not poisonous.

Bob
Received on Fri Feb 27 13:37:22 2004