Re: gum preservatves

To: alt-photo-process-l@usask.ca
Subject: Re: gum preservatves
From: Mark MacKenzie <mjmackenzie22@windstream.net>
Date: Thu, 04 Sep 2008 06:22:36 -0600
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Hi Judy.

What you describe is often used as a "classic" catalyst for polyester monomers in order to create a solid reacted resin. The dimethyl pthalate is a plasticizer for many resins. As you suspected, neither of these are preservatives. The MEK peroxide is closer to rocket fuel as a matter of fact.

As for a preservative, if you like the thought of essential oils have you tried clove oil? This was used and is used for preserving things like hot hide glue so that it doesn't "go off" quite so quickly. As I am not a gum printer (yet) I can't say that it would work for you.

Regards

Mark MacKenzie

Judy Seigel wrote:

While I was in the cabinet, meanwhile, I picked up a tube of something marked "MEK Peroxide in Dimethyl Phthlate: Danger: causes severe burns."
Does anyone have a clue what that is or does?

Follow-Ups:
- Re: gum preservatves
  - From: Judy Seigel <jseigel@panix.com>

References:
- concentration of 14 baume gum arabic
  - From: Dirk-Jan Treffers <dirkjan.treffers@gmail.com>
- Re: concentration of 14 baume gum arabic
  - From: "Christina Z. Anderson" <zphoto@montana.net>
- gum preservatves
  - From: Judy Seigel <jseigel@panix.com>