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h-BN has been used since the mid-2000s as a bullet and bore lubricant in precision target rifle applications as an alternative to [[molybdenum disulfide]] coating, commonly referred to as "moly". It is claimed to increase effective barrel life, increase intervals between bore cleaning and decrease the deviation in point of impact between clean bore first shots and subsequent shots.<ref>{{cite web | url = http://bulletin.accurateshooter.com/2014/09/hexagonal-boron-nitride-hbn-how-well-does-it-work/ | title = Hexagonal Boron Nitride (HBN)—How Well Does It Work? | author = <!--Staff writer(s); no by-line.--> | date = 8 September 2014 | website = AccurateShooter.com | access-date = 28 December 2015}}</ref>
h-BN is used as a release agent in molten metal and glass applications. For example, [[ZYP Coatings (company)|ZYP Coatings]] developed and currently produces a line of paintable h-BN coatings that are used by manufacturers of molten aluminium, non-ferrous metal, and glass.<ref>{{Cite web|url=http://www.colourdeverre.com/img/projects/advancedpriming.pdf|title=colourdeverre.com/img/projects/advancedpriming.pdf}}</ref> Because h-BN is nonwetting and lubricious to these molten materials, the coated surface (i.e. mold or crucible) does not stick to the material.<ref>{{Cite web|url=https://www.researchgate.net/publication/234787198|title=(PDF) Wettability, Spreading, and Interfacial Phenomena in High-Temperature Coatings}}</ref><ref>{{Cite web|url=https://hal.science/hal-02113581/document|title=Substrate Release Mechanisms for Gas Metal Arc 3-D Aluminum Metal Printing. 3D Printing &Additive Manufacturing}}</ref><ref>{{Cite web|url=https://www.researchgate.net/publication/265172365|title=(PDF) Wear properties of squeeze cast in situ Mg2Si–A380 alloy}}</ref><ref>{{Cite web|url=http://www.jwri.osaka-u.ac.jp/~dpt9/Acta(1993)BNAl.pdf|title=INTERFACIAL REACTION WETTING IN THE BORON NITRIDE/MOLTEN ALUMINUM SYSTEM}}</ref>
===Cubic BN===
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