I-porcelain yekhemikhali ikwabizwa ngokuba yiporcelain ebonakalayo kunye neekhemikhali okanye iiseramikhi ezikhethekileyo. Icandelo eliphambili yi-45% ye-alumina kwaye enye i-silicon dioxide. Ludidi lweporcelain eqinile. Inokumelana okugqwesileyo kweekhemikhali kunye nokuxhathisa ukothuka kwe-thermal, kunye namandla aphezulu omatshini. Isetyenziswa kakhulu kwishishini lemichiza, ishishini lamayeza kunye nelebhu yeekhemikhali.