I. Coating Process Types
Magnetic Sputtering Coating
Advantages: Advanced technology, uniform coating layer with strong adhesion, low reflectivity, and transmittance up to 97.5%. Suitable for high-precision optical applications (such as museums and electronic equipment).
Disadvantages: High production cost, requires precision equipment, and is limited in large-scale application.
Etching Coating Process
Advantages: Chemical etching creates a surface concave-convex structure, significantly improving transmittance (for example, greenhouse-specific anti-reflective glass has a transmittance of 97.5%). Suitable for agricultural greenhouses and photovoltaic applications.
Disadvantages: Weak resistance to environmental corrosion; long-term exposure to high temperature and humidity may cause degradation of the coating’s performance.
Roller Coating/Pulling Coating Process
Advantages: Low cost, simple process, similar to film application, and significant short-term transmittance improvement.
Disadvantages: The film layer is easily damaged by the environment (such as sunlight and rain), presenting a risk of detachment. Transmittance also decreases significantly over long-term use.
II. Comprehensive Comparison
Transmittance and Energy Efficiency: The etching process offers the highest transmittance (97.5%), significantly improving plant photosynthetic efficiency, but requires regular maintenance to prevent film aging.
Durability and Cost: Magnetron sputtering offers a long lifespan but requires a high initial investment. Roller coating, while economical, requires frequent replacement, potentially leading to higher overall costs.
Environmental Adaptability: Greenhouse environments are subject to high temperatures and humidity. Magnetron sputtering or etching processes, which offer strong corrosion resistance, are preferred to avoid the detachment issues associated with roller coating.
Note: The actual choice should be considered based on the greenhouse’s scale, budget, and maintenance capabilities.
The diffuse glass and AR-coated diffuse glass produced by Yuhua have cooperated with many large commercial greenhouses in agriculture, horticulture, nurseries and experiments. We have cooperated with large greenhouse project companies such as Havecon, Van Der Hoeven, Kubo, etc. for many years. Yuhua greenhouse glass has a light transmittance of up to 99%, and haze 5/10/20/30/50/70/75 greenhouse diffuse glass is available!
Need more detailed information or a solution of greenhouse glass? Need guidance on how to choose the right glass for your greenhouse?
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