Re: Printing gum on hard surface

MARTINM wrote:
>
> Coating a colloid on a glass substrate typically involves (prior to coating)
> extensive washing (sodium/potassium hydroxide, nitric acid, chromic acid and
> the like). Silane (e.g. 3-aminopropyltriethoxysilane) may be another step...

I think it may be misleading to make a general statement about "coating
a colloid on glass," since gelatin is often recommended, by those who
do a lot of gum printing on glass, as a sub for the gum coat. In other
words, I get the impression that gelatin must be a lot easier to coat
on glass than gum is. But at any rate, all the above sounds like more
work than this project is worth to me.

Katharine
Received on Sun Sep 5 08:40:55 2004