Tamiya has had this kind of stuff available since the 90's - Tamiya Ceramic grease
It even says on the bottle shown that it has one of the same major ingredients - boron nitride.
I've used the Tamiya stuff on every RC car i've owned that used meshing gears (not including the spur/pinion) since about 1993... never had a gear fail from chipped teeth or excessive wear in all that time.
The stuff is bloody fantastic
Not sure if the stuff shown might be too messy to use in CVD's but i'd certainly give it a go on any car with a gearbox.