Since the techniques of making natural glazes such as these have been lost over the ages, Sung has to come as close to the originals as possible using modern chemical methods.
古陶中多施用灰釉與鉛釉；瓷器上常用長石釉及石灰釉，較不易老化。然而現代人實在很難找到古代取自天然植物的釉料顏色與配方。宋希平只好採用化學顏料。