• boron nitride coating for highest performance
• contains red dye stuff for better contrast
• for aluminium, magnesium, zinc and lead
• yields non-wetting, lubricating surfaces
• for ladles, troughs, dies, thermocouples, ingot moulds
• contains "white graphite"


ALU-STOP LC25 Boron-Nitride-Coating "Red Label" is special coating for the non-ferrous metal casting and is characterised by a very high content of boron nitride. Thus ALU-STOP LC25 Boron-Nitride-Coating "Red Label" shows a very good non-wetting behaviour against Al, Mg, Zn and Pb as well as their alloys. A red dye stuff has been added to this formulation in order to alow better contrast when applied on white surfaces like Ca-silicate and fused silica. It is an ideal high temperature release and lubrication agent for the coating of troughs, distribution troughs, and moulds and protects these efficiently against attacks by aggressive melts.


• Resuspend coating prior to use and dilute with distilled water if necessary.
• Application on clean surfaces is possible by painting or spraying. Best results may be achieved by spraying onto warm surfaces (50-150°C, 122-302°F).
• Dry thoroughly. Do not contact wet coatings with metal melts. Additional layers may be applied after drying.
• Best performance of ALU-STOP LC25 Boron-Nitride-Coating "Red Label" is achieved by thin coatings (up to 50-150µm). Thick coatings may crack during use.
• Do not damage coating during use because damaged areas are not sufficiently protected.
• Tools may be cleaned with water.

Storage-Container Size

ALU-STOP LC25 Boron-Nitride-Coating "Red Label" must be protected against frost. A storage temperature of >5°C (>41°F) is recommended. The containers should be kept closed. ALU-STOP LC25 Boron-Nitride-Coating is available in 6kg-containers.

Technical Data


light red

Ceramic Constituent

Boron Nitride



Solid Content (Boron Nitride)



1,20 g/cm³

Temperature (max. Application)

1000°C (at air)

1800°C (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.

The Original