First time poster, but after all my internet research and reading of BITOG forum, I find I still want to ask a question.
hBN or hexagonal boron nitride is something I am using right now in my s65 motor for my BMW M3.
I am trying it out because of the risk of having bearing problems on this engine (many other internet owners are showing bearing wear for this engine).
So I took a chance on this additive because I want to TRY and protect my engine as best I can.
Now, to the question.
The following article show's what hBN is supposed to do when it is found in a 'film'
IT appears the micron 'balls' are supposed to 'roll' on the surface and that is what protects the metal from metal contact.
Scroll down to a little before mid-way hexagonal boron nitride
If this is the case, and you can have 'to much' hBN (meaning it clumps up and stops 'rolling') I am surprised to see we are able to use products like Ceratec from LM
Where they specificy 5-6% or X ML per X Liter's.
From this research it appears that anything other than the very specific amount of hBN the 'rolling' effect is lost.
See graph on Cutting Force a little further up the page.
What do people think?
Do we need to be FAR more precise in using this stuff to get the benefit?