Abstract: A toilet base containing substantially no ceramic material includes a one-piece plastic bowl with a smooth interior surface and a plastic trap that are mounted within a cast thermoset plastic containing a major amount by weight of one or more fillers such as calcium carbonate, alumina, glass frit and mixtures thereof.

Abstract: A toilet base containing substantially no ceramic material includes a one-piece plastic bowl with a smooth interior surface and a plastic trap that are mounted within a cast theromset plastic containing a major amount by weight of one or more fillers such as calcium carbonate, alumina, glass frit and mixtures thereof.

Abstract: The invention is a molding process adapted for the production of plumbing fixtures, such as a toilet whose functional surfaces are resistant to erosion by moving water wherein a ceramic shell forms a liner having external surfaces and the functional surfaces of the plumbing fixture. In the case of the toilet the ceramic shell includes a bowl, a siphon trap and a water flush ring. The molding process includes the steps of coating the external surfaces of the ceramic shell with a layer of resilient material and then suspending the ceramic shell upside down within a female mold member having internal surfaces so that the internal surfaces of the female mold member are slightly spaced from the external surfaces of the ceramic shell thereby leaving a gap between the internal surfaces of the female mold member and the external surfaces of the ceramic shell.