Keum-boo


Keum-boo (also Geumbu, Kum-Boo or Kum-buKorean "attached gold") is an ancient Korea gilding technique used to apply thin sheets of gold to silver, to make silver-gilt. Traditionally, this technique is accomplished by first depleting a surface of sterling silver to bring up a thin layer of fine silver. Then 24 carat gold foil is applied with heat and pressure—mechanical gilding—to produce a permanent diffusion bond.