Bagan yun lacquerware is built on a coiled bamboo core and layered with black-red lacquer, then engraved with the yun incising technique. Each groove is rubbed full of mineral pigment — cinnabar red, orpiment yellow, indigo-and-orpiment green — layer by layer, then polished to a deep glassy sheen.

The result is intricate figural and scrollwork imagery glowing out of a near-black lacquer ground. The hairline incised contour, not flat fill, is the structural identity: every form is drawn as line, banded in concentric borders, and lit from within the gloss.