NiB-X® is a proprietary formulation… and a remarkable technology that proves that not all nickel boron coatings are created equal. WMD was a pioneer in of nickel boron technology in the firearms industry, and not only is our coating formula unique; our application process is, as well. We’re confident that our NiB-X coating provides the optimal combination of hardness, wear resistance, lubricity, and corrosion resistance. The coating has a Rc 70 and a coefficient of friction of .06. NiB-X maintains its properties in high temperature applications and impervious to most chemicals (Nitric Acid notwithstanding). It has the same material properties throughout the structure of the coating so integrity and properties are maintained throughout the thickness. Coating can be duplexed with sublayers or topcoats to enhance specific properties customers may desire.