Re: Pure pigments and gum.

I do store pigment/gum solutions, often for long periods of time, with no
problems whatsoever. It always needs to be thoroughly stirred prior to use.
I use a stiff-bristle brush to stir it. Shaking without vigorous stirring
is not sufficient.

Dave in Wyoming

> >
> > I have lots of experience using dry powder pigments for gum printing.
> >
> > I usually mix gum/pigment at a 1:1 ratio with an ammonium or potassium
> > dichromate solution. The ratio of pigment to gum will vary
> > considerably.
>
>
> Dave,
>
> I assume that you store the pigment/gum solution. No problems with that?
You
> have to "shake" the pigment/gum solution before us to obtain a homogeneous
> solution?
>
> Best,
>
> Cor
> >
>
Received on Wed Sep 1 20:31:21 2004