ผลลัพธ์ (ภาษาอังกฤษ) 2:
The wet Gold is used to coat or enamel the grounds silver surface.
This kind of tuna is called niello your thong in Thai which means "coated with gold."
The enamelling process must be repeated several times until the grounds are well covered with gold of a desired thickness.
Then the utensil is blown using a torch.
When heated, mercury evaporates leaving the grounds gold against the black background .