Audioengr, Not sure about platinum, but...
I recently made a few prototype pure (well .999) palladium interconnects and let me tell you, the palladium took to soldering more readily than any silver or copper wire I have ever used. Low temps, very little impurities, degradations, etc... I feel this is one of the reasons palladium may become the wire of choice for ultra high-end cables, as silver was years ago. Oh yeah, I always recommend Cardas solder. Some other brands are good too, but the Cardas' flow is a DREAM to work with.
I recently made a few prototype pure (well .999) palladium interconnects and let me tell you, the palladium took to soldering more readily than any silver or copper wire I have ever used. Low temps, very little impurities, degradations, etc... I feel this is one of the reasons palladium may become the wire of choice for ultra high-end cables, as silver was years ago. Oh yeah, I always recommend Cardas solder. Some other brands are good too, but the Cardas' flow is a DREAM to work with.