Re: Help with gum pritns on black paper with white Gouache.

> Chris, the question about gouache's archivalness is probably due to some
> readings in old materials. Gouache used to be cheap poster colors with
> fugitive pigments or dyes and white added (for opacity). Nowadays if you
> buy artist gouache (for example, Winsor and Newton), they are basically
> the same as watercolor except that the concentration is higher for opacity
> reason.

OH, this is cool to know! Thanks, Dave. That's exactly what was said when I
used them, that they were graphic designer colors used for posters for
reproduction, and that the quality of the pigments was not up to snuff.
Glad it has changed since then.
Chris
PS Has anyone used egg tempera paint in tubes and dichromate? If egg
(colloid) is also hardened by dichromate, wouldn't that work? Or is this
what *is* used in tempera printing?
Received on Wed Jan 19 08:47:15 2005