Sorry, I cut off the last sentence of my last post:
Katharine Thayer wrote:
>
> I suppose an argument could be made that the chromium oxide could work
> something like chromium sulfate in chrome alum, hardening in the absence
> of light, but in my own experiments I haven't found chrome alum very
> effective in hardening gum, and at any rate I haven't ever heard that
> chromium oxides work the same.
And besides, my own experience printing with the two chromium pigments
rather disconfirms this argument anyway.
kt
Received on Wed Jun 1 11:50:54 2005
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