Anti-UV, infrared performance

Mica has excellent UV and infrared shielding properties. Therefore, adding wet mica powder to the paint used outdoors can greatly improve the UV resistance of the paint film and delay the aging of the paint film. Its infrared shielding properties are used to formulate insulation and insulation materials such as coatings.

Reduce settlement

As described above, the suspension performance of the wet mica powder is very excellent. It is a very thin tiny wafer that can be suspended in the medium for a long time without sedimentation. Therefore, when mica powder is used instead of the filler which is easy to settle, the storage stability of the coating is remarkably increased.

Thermal radiation and high temperature coatings

Mica has good infrared radiation ability, such as with iron oxide, can cause excellent heat radiation effects. The most typical example is the application in spacecraft coatings (reducing the temperature on the sun's side by several tens of degrees). Many heating elements and high temperature facilities require special coatings containing mica powder. This type of coating can work at very high temperatures, such as around 1000 ° C, the steel has been hot to red, but the coating has not changed.

Gloss effect

Mica has a good pearlescent luster, so when a large-grained flaky mica flakes product is used, it can impart gloss, glitter or reflection to the coating. Conversely, very fine pearl pigment powder can cause repeated mutual reflections in the material, resulting in a matting effect, so that the use of a small particle size mica powder product produces a matting effect.

Sound insulation and shock absorption

Mica can significantly alter a range of physical moduli of a material, forming or changing the viscoelastic properties of the material. This type of material absorbs vibrational energy and weakens shock waves and sound waves with high efficiency. In addition, the shock wave and the sound wave form a repeated reflection between the mica wafers, which also causes the energy to be weakened. Therefore, wet mica powder is also used to prepare noise reduction, sound insulation and vibration damping coatings.

The role of mica powder is far more than that, and we need to work hard to explore and discover.

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