Industrial Applications of Boron Nitride Release Coatings
Boron nitride offers thermal stability, lubricity and electrical insulation, making it useful in various high-temperature forming processes. Miller-Stephenson describes a boron nitride release coating with a dual-stage binder system for glass forming, metal processing and other demanding manufacturing applications.
In high-temperature forming, mold lubrication and release performance can affect part separation, surface quality and post-process cleaning. Some conventional lubricants and release materials may face stability or residue-control challenges under demanding thermal conditions. Solid lubricant coatings designed for high temperatures are therefore used in selected manufacturing processes.
Boron nitride is a synthetic ceramic material known for its lubricity, thermal stability and electrical insulation. According to Miller-Stephenson, its ReleaSys HTX-A boron nitride release spray uses a proprietary ceramic complex and a dual-stage binder system. The company states that the resulting dry-film coating can remain stable up to 900°C under its specified application conditions.
Listed applications include glass forming, aluminum and other metal extrusion and forging, die casting, hot pressing, brazing and sintering. The company also describes the binder system as a means of improving coating adhesion to the mold surface and minimizing transfer to molded parts.
Practical implementation should account for mold substrate, process temperature, pressure, contacting materials and coating application conditions. The published temperature figure should not be treated as a universal operating limit for every process. Suitability should be assessed against the product documentation and validated under actual manufacturing conditions.
