Thanks for the interesting link. I hadn't heard of this process before. I don't think I've heard of it in Southeast Asia, but I gather from Wikipedia that a similar process was used in Korea. I'll have to find out more. In early SE Asia the primary technique was fire gilding using an amalgam of gold and mercury. It often worked very well and I have a pair of earrings from Oc-Eo that are still in perfect shape.

Cheers,

Will