Muy BN is a 4 oz. jar containing 18 grams high purity Boron Nitride (h-BN) powder. ZYP Coatings is a U.S. manufacturer of high purity Boron Nitride (h-BN). Our BN is ideal for dry lubrication by merely rubbing it onto surfaces. Thermally conductive, electrically insulating & high lubricious, Muy BN is (as our name suggests) "very good" for many applications. Use temperatures to 1800 C (3300 F) are possible in inert and reducing atmospheres. In vacuum atmospheres, boron nitride can be used to nearly 1400 C (2550 F) before sublimation, and in oxidizing atmospheres, use temperature is approximately 1000 C (1832 F). ZYP's Muy BN also possesses dielectric properties that are superior to those of dense alumina ceramics, and is an excellent low-loss insulator material.