When the coating dries, it will tend to bring the ceramic microspheres closer together. This is critical. This creates the ‘Arm in Arm’ barrier to temperature transfer. The combination of a closely packed, high percentage of ceramic microspheres and the proper resins creates the reflection, insulative, and dissipative properties of the coatings.
B. There must be enough ceramic microspheres in the mix. 50% or greater by volume is required. Without sufficient volume the spheres will not come Arm in Arm with each other to provide the desired effect in a resin coating.
C. Particle size distribution is key. The distribution is important to create tight packing. A bi-modal distribution should be considered for optimal results.
D. The true density of the microspheres is important. They should be selected to enhance the resins ability to hold them in suspension.
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If they are too light this will become more problematic and they will tend to float out.