etching of Balinese keris

[David]

Originally Posted by GIO

In fact, after processing a polished blade with sulphur and rice water (and salt if you like), we can observe that iron appears corroded, while iron/nickel resists much better. In my experience, even polished Bali blades become rough after this treatment. The effect obviously is related to the length of immersion.

Thanks Gio, that is what i was curious about since the surface of the example Jagabuwana showed did indeed look somewhat eroded. I would not want a Bali keris to get this kind of surface if it indeed started with a polished blade.