What material is the fabric of this Yard Sun Shade made of, and how does it help resist the sun's UV rays?

The core material of the fabric of this Yard Sun Shade is high-density polyethylene, a widely recognized thermoplastic that performs well in outdoor applications. HDPE is an ideal choice for manufacturing sunshade products not only because of its abundant raw materials and excellent processing performance, but also because of its unique set of physical and chemical properties that make it highly resistant to the sun's UV radiation.
The molecular chain structure of HDPE is stable and not easily affected by the external environment and chemical changes. Even under strong sunlight, HDPE fabric will not easily react with UV rays, avoiding material degradation and performance degradation caused by chemical reactions. This chemical stability ensures the long-term durability of the sunshade product.
To further enhance the UV resistance of HDPE fabric, manufacturers usually add UV absorbers or light stabilizers during the production process. These additives act like "sunscreen" and can absorb or reflect UV rays to reduce their direct exposure to the material. UV absorbers can absorb UV rays and convert them into harmless heat energy and release them, while light stabilizers can effectively shield the penetration of UV rays by forming a protective layer on the surface of the material, protecting the internal structure of the material from damage.
The high density of HDPE is another magic weapon for it to resist UV invasion. High density means that the molecular chains inside the material are arranged more closely and the gaps are small, which greatly reduces the possibility of UV penetration into the material. In addition, the tight molecular structure also helps to prevent the intrusion of external factors such as moisture and oxygen, further extending the service life of the material.
HDPE fabrics that have been specially formulated and processed, such as the 320GSM HDPE knitted fabric in this product, not only have excellent UV resistance, but also show excellent long-term weather resistance. This means that even under extreme climatic conditions such as high temperature, strong wind, humidity, etc., the fabric can maintain its original strength and color stability, and is not easy to fade or deform. This is essential for maintaining the aesthetics and functional integrity of courtyard shading products.
HDPE materials, with their chemical stability, efficient UV absorption and shielding mechanism, high-density structure and excellent long-term weather resistance, provide a solid protective barrier for courtyard shading products, ensuring that users are protected from UV damage while enjoying outdoor life and enjoy a cool and comfortable leisure space.