I was thinking of doing a line of Palladium Silver jewellery with a
1-2 year guarantee non oxidation within these period, do you think
its a good idea?
Don't do it, all sterling (925) alloys will oxidize (tarnish).
Until you add a significant amount of alloying elements (40% or so)
all silver alloys tarnish.
I’ll second Jim’s statement by suggesting an analogy. 10 karat gold
alloys will tarnish over time in many instances. These are 41+
percent gold, and the remainder is alloy. Even if that alloy is fine
silver only (585 silver, 415 gold), it will tarnish. I know, I’ve
used exactly that alloy for some things. It tarnishes slower than
sterling of course, but it tarnishes. Palladium does not offer
greater protection against tarnishing than does gold, though it’s
lighter SG means the volume of palladium in a 415 pd silver alloy
would be greater, so perhaps it would be better than that same alloy
with 415 gold. But it will still tarnish, given time and the right