I bought this to repair a gummed up Cpu Fan.
My Laptop had begun overheating, and no amount of dust or fluff removal seemed to fix it.
Then I ran a system report, and found the Cpu Cooler never got above 500rpm.
These fans are of the brushless type.
if you use oil or grease on them because of the high temps, it either clogs up very quickly or evaporates.
Graphite powder has none of these issues, I just added a small amount into the Fan Blade spindle hole,
put it all back together, and the problem is solved, the fan is super silent, and whips along between 300 to 1,500 rpm
depending on Cpu Load, for an Intel i7 Cpu running video software, it now rarely rises in temps above 50, usually it hovers around 43 degrees.
the only gripe I would have with this product is its difficult to control how much pours out the spout.
and if you get it on light wooden furniture, its difficult to remove (it stains)
but other than that its perfect, because its a powder it never evaporates, never clogs
saved me a fortune on a replacement cpu fan, as they are custom built
I have also used it to release a sticky padlock on the shed, and even sorted a squeaky upvc Window.