The imported insects are put into alcohol, where they effectively dissolve; condensation of the resulting solution results in deposits of carmine pigment. Though Sung has pioneered in efficient production of high quality traditional pigments, unlike the skilled artisans of the past, he has sought no special benefit for himself.
宋國華製作的顏料價錢也很公道，一錢只售卅多元，比進口顏料便宜數倍，為許多學畫者和畫家節省可觀的開銷。談到國畫顏料的應用，宋國華指出，國畫不像西洋畫以色彩為主，而是先以墨色打底，然後上色；但也有用調好的顏色直接畫的。