Even though the glass has been treated with an anti-reflective coating, why still consider dust accumulation?
Sep 23,2026
The most straightforward goal of anti-reflective coating on glass is to allow more light to pass through.
However, if the glass is used outdoors over the long term, assessing its performance only immediately after coating application is insufficient. Dust carried by the wind, stains left after rain, and the friction from routine cleaning can all degrade the glass’s performance over time.
These are also some of the questions customers often ask next when choosing an anti-reflective coating: Does it get dirty easily with prolonged use? Is it easy to clean when it does get dirty? Will cleaning affect the coating?
First, let the light reflect a little less.
When light strikes a glass surface, not all of it passes through; some of it is reflected back. For photovoltaic glass, this means that the amount of sunlight entering the module is reduced. For camera‑protective glass and certain optical components, surface reflections can also cause glare and visual interference.
Sysmyk® TZT0030 anti-reflective and light‑transmitting coating solution utilizes inorganic nanomaterials to form a transparent layer on glass surfaces, reducing surface reflections and enhancing light transmission. After coating application, the glass’s original appearance remains virtually unchanged.
Now, let’s look at what happens after the dust settles.
Dust accumulation on outdoor glass is hard to avoid entirely. In dry, windy conditions, fine particulates tend to adhere more readily to the surface. Even if the glass initially maintains good light transmission, regular cleaning is necessary as contaminants build up over time.
TZT0030 combines antistatic and superhydrophilic properties. Its antistatic performance helps reduce the electrostatic attraction of fine dust, while its superhydrophilicity enables water to spread more readily across the coating surface when exposed to rain or clean water, thereby helping to remove loosely adhered surface dust.
Here, “self‑cleaning” doesn’t mean the glass will never need to be washed again. In practice, it means that surface contaminants are more easily rinsed away by water, making subsequent cleaning much easier. For oil stains, scale buildup, or heavier soiling, regular cleaning as needed is still required.
It must also withstand regular use and cleaning.
Antireflection coatings are extremely thin, but their performance cannot be judged solely on the basis of freshly applied results. For glass intended for long-term use, the coating’s adhesion, abrasion resistance, and weatherability are equally critical.
After curing, TZT0030 forms an inorganic coating, with a product design that balances anti‑reflection, superhydrophilicity, antistatic properties, and wear resistance. The actual performance should be evaluated in conjunction with the glass substrate, application and curing conditions, and the service environment. For glass already coated or for products with specific optical requirements, we recommend conducting sample testing first.
The benefits of a single coating layer cannot be judged solely by how much its transmittance has improved. Whether light can pass through more effectively, whether the glass remains easy to clean when soiled, and whether the coating can withstand subsequent use—these factors, taken together, provide a more comprehensive basis for selecting an anti‑reflection solution.
If you are selecting an anti-reflective coating solution for photovoltaic glass, camera‑protective glass, or other glass products, please feel free to contact Hisonmec to discuss your specific substrate and application requirements.
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