What are the effects of resin processing temperatures on the color stability of WPC tree boxes?
The color stability of Wood-Plastic Composite (WPC) tree boxes is significantly influenced by resin processing temperatures. High temperatures during extrusion or molding can cause thermal degradation of the resin, leading to discoloration or fading over time. Optimal temperature ranges must be maintained to preserve the polymer's integrity and UV resistance, which are critical for outdoor applications. Excessive heat may also weaken the bond between wood fibers and resin, accelerating color changes. Manufacturers should balance temperature control with material performance to ensure long-lasting aesthetic and functional quality. Testing under varying thermal conditions can help identify the ideal processing parameters for WPC tree boxes.
