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The Special Features of HSR Nano Sol-Gel Mirrors

Advantages:
1. Impossible for the coating to come off.
2. Strong anti-corrosion.
3. Uniform color.
4. Strong coating hardness.
5. Able to produce large-size glasses.
6. High reliability of the products.

Disadvantages:
1.  High manufacturing costs
2. Advanced technologies required to manufacture
3. The formulas used to manufacture is trade secret
4. Stringent manufacturing environment

SOL-GEL NANO is not used in the conventional metal coating process, rather used in the manufacturing process in producing blue mirrors, having the surface hardness as 7H (, the average is 9H). The manufacturing environment for blue mirrors is very stringent. The equipment and the environment require an extremely high standard of cleanness to make sure there are no dirt and dusts.
The humidity and temperature control, which is required to be precise and stable, is important. As a result, in order to manufacture blue mirrors that are high quality, it requires the state of the art equipment and the state of the art clean room.

Because SOL-GEL NANO blue mirrors produce blue color that is perfectly uniform, people might mistakenly think that this erfectly uniform blue color is the result of coating the blue color directly onto the surface of the mirror. In contrast, the blue color is not the color of the coated mirror. Rather, the coated mirror does not have any colors at all. As a matter of fact, the blue color that you see is the reflection of spectrum that is seen by human eyes. As the back of the coated mirror processed with a layer of black color, it only allows the light entering the coated mirror to be reflected back out of the coated mirror as only the blue color.

In order to produce this perfectly uniform blue color, the selection of a right type of mirrors that is high quality is critical. For this type of high quality mirrors, we use optical glass because it allows producing clean and spotless mirrors required by the coating process.

SOL-GEL NANO coating process uses immersion method. Specifically, the process uses the state of the art equipment to immerse the mirrors in a tank filled with SOL-GEL. This allows SOL-GEL . This allows SOL-GEL and the mirrors to have direct chemical reaction. 

This immersion process is repeated three times but each time a different type of SOL-GEL is used in order to get the perfectly uniform  blue color. The immersed mirrors also baked and sintered in high temperate to solidify the chemical reaction between the mirrors and the SOL-GEL. The hardness of the coated mirrors can reach 7H (the average is 9H)In contrast, here is the vacuum coating process; unprocessed mirror – cleaning – baking (making the mirror curvature) – coating chrome – coating blue color onto the glasses surface.

Dip Process
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