[Paladin2]

" It's not all THAT rare"

In fact it's in use daily quite close to nealy all of us as we drive around (Used as a catalyst for vehicle emission reduction in (at least) US and Canadian vehicles - for decades).

[Wonder Warthog]

"In fact it's in use daily quite close to nealy all of us as we drive around (Used as a catalyst for vehicle emission reduction in (at least) US and Canadian vehicles - for decades)."

Methinks those are mostly platinum rather than palladium. But palladium is more abundant than platinum so the point "is" illustrative. Still better if it works in titanium, too.