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Enhance Light Transmittance of base materials with an inorganic film

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Achieve Low-reflection by the continuous change of the refractive index.

"EXCEL PURE" enhances the adherence with base material and forms nano-sized unevenly shaped film on the surface of base materials. This film gradually changes the refractive index and enhances the light transmission of base material.

Mechanism of enhanced light transmission

The refractive index of air is different from that of base materials. If the surface of material is flat, the angle of reflection increases.

Part of Silica ingredients in EXCEL PURE sinks into the surface of base material. It enhances the adherence with material and forms nanometer sized uneven shaped coating film on the surface of base material.

This coating film changes the refractive index of base material gradually and prevent the reflection of light, enhancing the light transmission.

Result of Light Transmittance test ①/ Acrylic panel (initial value)

■Apply "EXCEL PURE" to Clear Acrylic panel and measure the initial light transmission.

The light transmittance of coated panel increased by an average of 2.8%(1100~360nm), compared to the one which the agent was not applied.
It was confirmed that the coating film enhances the light transmittance from early stage.

Initial value
Not applied Applied Rate of increase
1100 91.7 93.0 101%
1000 91.3 92.7 102%
900 90.7 92.6 102%
800 91.9 93.8 102%
700 92.0 94.3 103%
600 92.0 94.7 103%
500 91.8 95.0 103%
400 90.4 93.8 104%
380 52.4 54.9 105%

*Test result by our in-house technical center

Light Transmittance test② / Acrylic resin panel (after 8 months of exposure)

■Apply "EXCEL PURE" to Clear Acrylic panel and measure the light transmission after 8 months of exposure.

It was confirmed that the light transmission of the coated acrylic panel increased by an average of 9.2%(1100~360nm),compared to the one which the agent was not applied.

Initial value
Not applied Applied Rate of increase
1100 87.1 92.7 106%
1000 86.2 92.2 107%
900 85.0 91.3 107%
800 85.3 92.5 108%
700 84.5 92.0 109%
600 83.4 91.2 109%
500 81.7 90.1 110%
400 78.2 88.0 113%
380 46.1 52.3 113%

*Test result by our in-house technical center

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