Re: PVA for gum printing

Yes, the non-glare glass is just glass but etched by acid, but the acid must
have been washed away, or you can wash it again.

Depending on what kind of test you are doing, maybe you can use a big piece
of glass but use different sections for different test, so at the end you
have one piece but lots of data. I thought about doing similar tests too on
other things but never got to it.

But I missed the original post (a few months ago?) What are you testing?
Are you testing the physical property of the hardening or are you (is the
chemist) testing what actually is happening chemistry wise in hardening?

Thanks,
Dave S

----- Original Message -----
From: "Katharine Thayer" <kthayer@pacifier.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Friday, September 03, 2004 6:37 AM
Subject: Re: PVA for gum printing

> Dave Soemarko wrote:
> >
> > Hi Katherine,
> >
> > Could you maybe use non-glare glass?
> >
>
> Hmm, good idea. I'll bet the gum would stick better than on regular
> glass, since the surface is so matte. But, no matter how interested I am
> in this, I am not going out and buying a bunch of non-glare glass for
> this project. I suppose I could buy one piece and use it over and over,
> but it would take me a whole lot longer to finish my project that way.
> But it would be one way to have no doubts about of the purity of the
> gum. I'm assuming that non-glare glass is just glass, and doesn't have
> some chemical finish or something.
>
> Katharine.
>
>
Received on Sun Sep 5 08:24:13 2004