Cryptic Mystic Black BCG coating

[DrHenley]

I thought nickle boron was the premium BCG coating. Then I discovered Cryptic's coatings. Their top of the line coating is called "Mystic Black."
The entire Cryptic BCG in "Mystic Black" was a little too pricey, but just the bolt itself was just a little over 100 bucks. So what I decided to do was put a Mystic Black bolt on a relatively inexpensive nickle boron carrier.
Mystic Black is hard to describe. It makes nickle boron seem like sandpaper, LOL The Rockwell C hardness chart tops off at 80 HRC which is 1865 Vickers. Nickle Boron is slightly off the Rockwell C chart. Mystic Black is way way off the chart. Tungsten carbide is 2600 Vickers.

Mystic Black
Coefficient of Friction: 0.01
Hardness: 3000 Vickers
Max Temperature: 1,100° F
Thickness: 2-3 microns (0.00008" - 0.00012")
Color: High Luster Black

Nickle Boron
Coefficient of Friction: 0.5 – 0.8
Hardness: 1900 Vickers
Max Temperature: 600° F – 700° F
Thickness: 9–13 microns
Color: Silver – Matte Gray