Shanghai Electrical SEMC brand Solar Panel

In the PC (polycarbonate) sun sheet industry, leading brands typically demonstrate significant advantages in technical performance, primarily in material formulation, weather resistance, impact resistance, optical properties, and system integration. The following is a summary of these technical performance advantages based on industry information.

Core Technical Performance Advantages

- Double-sided UV Coating Technology: Leading companies such as Shanghai Huili-Tager Sheet Co., Ltd. and Ningbo Shengyang Sheet Co., Ltd. employ double-sided co-extrusion UV coating, with coating thicknesses generally reaching or exceeding 80μm. This technology effectively blocks UV damage to the sheet's interior. Accelerated aging tests using xenon lamps show a light transmittance decrease of ≤6% and a yellow index change of ≤10 within 15 years, ensuring long-term light transmittance and color stability.

- Superior Weather Resistance and Anti-aging Performance: Through optimized material formulation and coating processes, high-quality sun sheets exhibit outstanding performance in extreme climates. For example, in high-humidity, high-salt coastal environments or arid northwest regions, the product's corrosion resistance and anti-aging indicators are locally adapted, resulting in a service life of over 10 years, far superior to inferior products (which typically require replacement every 3-5 years). - High Impact Resistance and Mechanical Strength: Branded products such as SABIC Innovative Plastics and Covestro Polymers utilize advanced PC material modification technology, significantly enhancing the impact resistance of the sheets, making them suitable for high-risk environments such as industrial plants and warehouse buildings. Simultaneously, production lines employ fully automated equipment (such as Italian OMIPA equipment) to ensure uniform thickness and surface flatness, enhancing structural stability.

- Optical Performance and Transmittance Control: Through precision extrusion processes and anti-drip design, leading brands maintain a transmittance of over 82% with uniform light distribution. For example, Covestro sheets offer advantages in fire resistance and optical performance, making them suitable for commercial skylights and interior decoration applications.

- System Integration and Engineering Adaptability: Leading companies not only provide sheets but also complementary installation systems such as U-locking systems and multi-layer hollow panels. They utilize digital technologies (such as Huawei's Hetu digital twin simulation and Baidu AR lighting simulation) to optimize designs, reducing construction risks and material waste, and improving the reliability of large-span projects (such as high-speed rail stations and airport terminals).

Selection Recommendations

When procuring, it is recommended to prioritize key indicators such as UV coating thickness (≥80μm), light transmittance stability, and impact resistance. Consider the local climate conditions (e.g., corrosion resistance is needed in coastal areas, while frost resistance is needed in northern regions) when selecting a suitable brand. Avoid simply pursuing the lowest price; comprehensively evaluate the company's qualifications, warranty policies (e.g., 15-year warranty), and service support.

These advantages reflect the leading position of industry-leading brands in technological innovation and quality control, providing reliable guarantees for high-performance application scenarios.