An Ancient Korean gilding technique used to apply thin sheets of gold to silver. Traditionally, this technique is accomplished by first depleting the 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.
Pure precious metals such as gold and silver, have a very similar atomic structure, and therefore have a good potential for bonding. Heating these metals to a temperature between 500-700°F increases the movement of the atoms. When pressure is added, this causes an electron exchange at the surface between the two metals, creating a permanent diffusion bond.