Boron-Nitride-Coating Grade HP
• for superplastic forming
• very good high temperature lubricating qualities
• good stop-off and release characteristics
• good thermal shock characteristics
• good thermal conductivity
• contains "white graphite"


Boron-Nitride-Coating Grade HP is a special coating for the superplastic forming of components from titanium for the aerospace industry. It finds application for components even with severe forming ratio. Boron-Nitride-Coating Grade HP is a formulation based on boron nitride, blended with a refractory binder. This environmentally friendly coating contains no solvents and is free from chlorides and fluorides. Boron-Nitride-Coating Grade HP is assigned for the coating of the die surfaces as well as the SPF sheet metals. It is an alternative to solvent-based graphite and boron nitride SPF parting agents. Boron-Nitride-Coating Grade HP results in a very smooth surface like a gloss coating lacquer. It shows good adhesive strength to the sheet metal at ambient temperature as well as within the high temperature area.


• The surfaces to be coated should be clean, dry and free of dust. Degrease SPF sheets prior to application of Boron-Nitride-Coating Grade HP.
• Usually homogenisation of this product is not necessary. However after long storage time the suspension should be well suspended by slight agitation.
• The received consistency can be used for brushing or rolling. Dillution with distilled water is necessary for spraying.
• Spraying is recommended in order to achieve a uniform coating.
• Dry out coating at temperatures with 80 to 100°C (180-210°F) for 1 to 4 hrs.

Storage-Container Size

Containers should be kept closed and product protected against frost. A storage temperature of >5°C (>41°F) is recommended. Boron-Nitride-Coating Grade HP is available in 1kg-containers.

Technical Data



Ceramic Constituent

Boron nitride

Solid Content (boron nitride)



1.2 g/cm³

Temperature (max. Application)

1000°C (1832°F) (at air)

1800°C (3272°F) (under inert gas)


© 2023 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst

These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.