parang donut lang pala to @asbonclz ? na may glaze ? galing galing
on a serious note, does glazing affects the thermal property of ceramics? Meaning does it dissipates less heat? I noticed, when using a glazed ceramic cup for my coffee, the warm temperature (of coffee) is preserved longer than using an unglazed cup.
Haha parang ganon na nga pero mahirap yan @precise kasi yung ibang glaze nag run-off, dapat compatiple sila sa ceramic body, dapat ang expansion nila almost the same lang. Maraming problema ang glaze lalo na mali formulation.
Most glaze bai NO, lalo na sa mga cups, NO. Pero naay mga ceramic coatings bai nga low ug thermal conductivity. Naa gale coatings bai na maka withstand ug very high temperature, naa to sila'y mga secret components hahaha mga lightweight hollow ceramic materials, one example is diatomite.