I came across a problem recently sizing a platinum ring and wondered
if anyone else has had this experience.
Stamped 950 Plat, looks and feels like platinum when you file it,
When heat was applied for the 1700 solder the ring started to
bubble. Upon further investigation, the inside of the ring looks like
a hershey crunch bar or a bad casting, all crazed and pitted. Put a
file to it, clean it up and it looks fine. The laser turned the metal
Grey in color so that was out. Had to seattle on 1500 solder which
did not make the metal bubble but yet there is not a faint dark line
where it was sized.
Is ther a new alloy that is now being used with platinum?
Any help for future problems of this sort would be of great help.