Eight Treasures Seal Paste has vivid colors, a fragrant aroma, water resistance and an enduring hue. It neither seeps oil in summer nor freezes in winter. But despite being favored by Emperor Qianlong and calligraphers in China and across the world, the fact is that this top notch seal paste almost disappeared from the world. Only due to the insistence of craftsmen like Yang Xiwei did this seal paste survive and regain popularity on the national market.