At 06:36 PM 2/8/2005 -0800, you wrote:
Hi,
Our education centre manager is looking for a material which
can be used to cast replicas from latex moulds of fossils and needs
something that can effectively cure in less than about 10-15 minutes and
which members of the general public can take home and stick on their
mantelpiece. With my limited knowledge I suspect that plaster-of-paris
would take too long to cure. Does anyone know of anything that would cure
in such a short time, but which is not expensive?
-
Model railroaders use a material called Hydrocal, (made by US
Gypsum) which sets very quickly and makes harder casts than plaster
of paris. You can buy it in bulk. - Roy
Roy E. Plotnick
Professor
Department of Earth and Environmental Sciences
University of Illinois at Chicago
845 W. Taylor St.
Chicago, IL 60607
plotnick@uic.edu
office phone: 312-996-2111 fax:
312-413-2279
lab phone: 312-355-1342
web page:
http://www.uic.edu/~plotnick/plotnick.htm
"The scientific celebrities, forgetting their molluscs and
glacial periods, gossiped about art, while devoting themselves to
oysters and ices with characteristic energy.." -Little Women,
Louisa May Alcott