Resistance of the coating to temperature changes

Wurtzite boron nitride high temperature resistant coating and  thermal paste  were tested for resistance to temperature changes: graphite electrode was heated to 800 degrees and then immediately cooled in water. 

Resume: wurtzite boron nitride high temperature resistant coating has better adhesive properties, because it contains silicates;  thermal paste  was washed off with water, obviously because it's water based.
The resistance to temperature changes of both products is stable, cracks are not observed after heating.

1. How to apply wurtzite boron nitride high temperature resistant coating on graphite electrode.



2. One hour to dry for wurtzite boron nitride high temperature resistant coating.   



3. Wurtzite boron nitride high temperature resistant coating  was heated to 800 degrees and then cooled in water. Surface remains on electrode, but resistance to mechanical impact is relatively low. 



4. How to apply wurtzite boron nitride  thermal paste with a spatula



5. One hour to dry is not enough for wurtzite boron nitride thermal paste 




6. 5 hours to dry for wurtzite boron nitride thermal paste, then it was washed off after heating and cooling in water.