It depends on when you learned with wallpaper paste. Wallpaper paste of old was
(methyl-)cellulose. Since the 1970ies, more and more additives have 'contaminated' it,
meaning polyvenyl, fungicides, softeners and other undesirable stuff. Now it is next to
impossible to find mc-wallpaper paste. Using pure mc would be the safe alternative.
Apart from that no one can say for sure what the additives do to the paper in the long run,
none of them is what I'd like on my hands, let alone on the hands of children.
--- In Marbling@yahoogroups.com, Angela Drake <angiedrake@...> wrote:
> When I first learned how to marble in Germany, I used boxed wallpaper paste.
> It came in powdered form and I added warm water. It performed very closely
> to carrageenan - the control wasn't as fine but good for teaching beginners
> and children or for practicing new technique. I can't find the same product
> in the US but perhaps things have changed in the past ten years. I wish I
> knew what the ingredients were but I'm afraid I can't remember! Maybe
> someone living in Germany would know?