What are the effects of resin crystallization on the surface hardness of WPC outdoor tree boxes?

Resin crystallization in Wood-Plastic Composite (WPC) outdoor tree boxes significantly influences their surface hardness and overall durability. As resin crystallizes within the composite matrix, it forms a denser, more rigid structure, which enhances resistance to wear, scratches, and environmental stressors. This process improves the material's ability to withstand prolonged exposure to moisture, UV radiation, and temperature fluctuations, common in outdoor settings. However, excessive crystallization may lead to brittleness, requiring a balanced formulation to maintain flexibility. Manufacturers optimize resin content and additives to achieve ideal hardness without compromising structural integrity, ensuring long-lasting performance for WPC tree boxes in landscaping and urban applications.