The urushi sap contains an oily substance called urushiol. When exposed to warmth and humidity, an enzyme is activated and extracts oxygen from the water and supplies it to the urushiol. The urushiol solidifies, forming a hard film. Even after it has hardened, the urushi retains some water content, making it look perpetually wet and shiny
(
Read more... )
Comments 4
Reply
Reply
Reply
*huggles*
Reply
Leave a comment