Re: Printing gum on hard surface

Dave Soemarko wrote:
>
> > The chemist I'm working with thought it would
> > be a simple matter to coat glass with dichromated gum, expose, wash and
> > dry it and then peel off a sheet of nice hardened gum. Don't I wish!
>
> Oh, sorry I didn't read this email before replying to the previous one. If
> you want a piece of dry hardened gum, maybe you could try coating it
> thickly, expose, and do something similar the carbon transfer, except that
> this is a gum transfer. You can transfer it to a piece of pure glass, or the
> slick side of mylar.
>
> But I haven't done that myself. It's just a suggestion.
>

Well, I actually tried that in the interest of making more hardened gum
faster, but I couldn't make it work. I don't think gum works the same
as gelatin in this regard. And in fact, we all know that one reason for
failure in gum is to get the coating too thick; it just flakes off. I
put these thicker layers out in the sun and exposed them for a very long
time, but no go.
kt
Received on Sun Sep 5 08:27:14 2004