Among the key elements of kintsugi, two traditional glues play an essential role: mugi urushi (むぎうるし) and nori urushi (のりうるし). Each has its own composition, uses, and advantages.

These ancient techniques, often unfamiliar to the general public, embody a rich craftsmanship infused with poetry and aesthetic reflection. They bear evocative names such as Tomotsugi, Yobitsugi, and Tametsugi.