As the Advantage25 coating dries and enters into the process of curing, the liquids within the system begin to evaporate, causing the layer thickness to diminish gradually until it reaches a reduction of approximately 40%. This coating thickness reduction makes the spheres, which were dispersed before, to group together in a compressed form. On account of their rounded shape, they form a geometrically perfect shield.
The Science of Advantage25
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The ceramic as well as the white color are responsible for the coating reflectivity and emissivity.
The ceramic is added to the coating during the manufacturing process. When Advantage25 is still in its liquid form, the ceramic spheres remain suspended and are not aligned due to the great amount of space.
When applied on surfaces, while the layer is wet, the spheres are not aligned and there is a certain amount of space between them. This allows a part of solar radiation to penetrate the coating and pass between the spheres.
As the diagram alongside shows, white paints help to attenuate solar radiation through reflectivity. However, most of the heat penetrates the layer through conduction, radiation and convection, because these paints do not have the protection of ceramic spheres.
In the diagram alongside, we can see that most of the heat which penetrates the coating is blocked and returned through high reflectivity, high emissivity, low absorption and the low thermal conductivity value of the ceramic which forms the internal protective shield of the Advantage 25 coating.