Re: dichromate stain

From: Katharine Thayer ^lt;>
Date: 06/17/04-05:11:12 AM Z
Message-id: <>

Sorry, another clarification:

Katharine Thayer wrote:

> (2) One thing I learned yesterday is that zinc white gouache in two
> different brands with two different gums caused dichromate stain every
> time. I also learned from that zinc white blocks UV below
> 370. So I guess I would say that this is the first pigment that I've
> found, at least in gouache formulations, that probably doesn't work very
> well for gum.

To be clear, this should read "this is the first pigment I've found that
I would say probably doesn't work very well for gum, at least in gouache
Received on Thu Jun 17 12:07:09 2004

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