Superplast BN25
• for superplastic forming
• very good high temperature lubricating qualities
• good stop-off and release characteristics
• good thermal shock characteristics
• good thermal conductivity
• concentrate for highest requirements
• contains "white graphite"


Superplast BN25 is a special coating for the for the forming and superplastic forming. It contains boron nitride ("white graphite") which applies as highly effective high temperature lubricant, where graphite and oils cannot be used due to extreme temperature conditions. This environmetally friendly coating is free from chlorides, fluorides and heavy metals. It is suitable for the coating of sheet metals and workpieces as well as dies. Superplast BN25 results in smooth, lacquer-similar coatings, which indicate a good adhesion to the metallic substrates both at ambient temperature as well as within the high temperature area. Beside the concentrate Superplast BN25 the ready for use suspension Superplast BN10 is also available for standard applications. For highly pure applications and the avoidance of any contamination the product Boron-Nitride-Coating Grade HP should be used.


• The surfaces to be coated should be clean, dry and free of dust. Degrease SPF sheets prior to application of Superplast BN25.
• 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 of advantage in order to achieve an even coating.
• Dry out coating at temperatures with 80 to 100°C (180-210°F) for 1 to 6 hrs. depending of the component size and layer thickness.

Storage-Container Size

Containers should be kept closed and product protected against frost. A storage temperature of >5°C (>41°F) is recommended. Superplast BN25 is available in 1kg-containers and 6kg-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.