![Keum Boo Gold on sterling silver pendant Keum Boo Gold on sterling silver pendant](https://www.jhsilver.co.uk/blog/wp-content/uploads/2012/03/ss831-7236-300x300.jpg)
Keum (or Kum) Boo is a process for affixing fine gold foil onto fine silver for decoration. See on my main website for more detail at this page. Up until now , I have fused the gold onto fine silver, but i’ve just tried successfully to put foil on sterling silver by depletion silvering. To pretreat the sterling sheet, I did the heat / acid/ heat / acid cycle seven times, but the end result is good. I am pleased with the result and will do more.