Thanks guys!It was just a random thought,because I know that it would handle high heat,but we pour way below that threshold with our plastic,So I don't know what benifit it would have over pop.Years ago I would model a figure with ceramic clay,then pour a pop mold over it,followed by pouring into the cured mold,a china clay slurry.After a few minutes the slurry would leave a thin,or thick layer or clay that could be fired.It way fairly easy to get great detail.Agree with Nova that it would have to be reinforced,and probably wouldn't be worth the cost or trouble,but maybe someone might come up with a idea to put this into use,one way or other in our quest for new and better ways.