According to Yang, the NPM often uses non-water-soluble pigments, mixing in an appropriate amount of binding agent (similar to paint baking colors), then using a small spray gun to spray an even coat onto the porcelain. Afterwards, the piece is baked for two hours in a heated chamber. After that, the technician dips a calligraphy brush into binding agent and pigment and carefully paints on the appropriate pattern.
楊源泉表示，故宮作釉色處理時，常採用不溶於水的顏料，適量調入「燒付素」（類似烤漆顏料），然後用小號噴槍均勻噴在瓷面上，經過定溫箱烘兩個小時後，再用毛筆沾燒付素並調入顏料，仔細描繪出花紋圖案。