Yeah, right!

Yes, common 'beach sand' is silicon dioxide an eventual part of any silicon 'lube' in air. Silicon 'lubes' are generally suspensions of small molecules, not the very long carbon chains (40 or more) you find in hydrocarbon greases. Here oxides that form (they make oils and greases go dark over time....) don't cause issues like SiO2 does.

You don't have to take my word for it, of course (or other folks) but you might notice the great absence of such products anywhere you can use conventional hydrocarbons (they show up in food use and vacuum systems for contamination reasons, not because they are useful lubes). Notice say BMW using it?

Doug Owen