Re: gum bichromate
David Soemarko (fotodave@m-net.arbornet.org)
Sat, 10 Jun 1995 20:45:57 -0400 (EDT)
If you use solid pigments, remember to use dust mask. I haven't done gum
printing, but I paint and make my own watercolor sometimes (it is
essentially the same thing: gum arabic + pigment). Many pigments in
watercolor are toxic, but in liquid form, you don't breath them in. But
you must exercise more caution when using them in dry form.
David Soemarko
> From whom you can also buy solid pigments for gum use - this saves any
> problems in buying tubes of colour where the formulation may change or
> age. A jar of pigment will last for ever - unless you go into mass
> production.