In this process , called stereotyping , the entire form is pressed into a fine matrix such as plaster of Paris or papier mâché called a flong to create a positive , from which the stereotype form was electrotyped , cast of type metal .
In this process , called stereotyping , the entire forme is pressed into a fine matrix such as plaster of Paris or papier mâché called Flong to create a positive , from which the stereotype forme was cast of type metal .