How does the thermal degradation temperature of WPC limit its use in high-heat geographic regions?

Wood-Plastic Composite (WPC) is a popular material for outdoor applications due to its durability and low maintenance. However, its thermal degradation temperature poses a significant limitation in high-heat geographic regions. WPC typically begins to degrade at temperatures above 60-80°C (140-176°F), causing warping, discoloration, and reduced mechanical strength.

In regions with extreme heat, prolonged exposure to high temperatures accelerates this degradation, shortening the material's lifespan. The polymer matrix in WPC softens and loses structural integrity, while the wood fibers may char or weaken. This makes WPC unsuitable for applications like decking or cladding in areas with consistently high temperatures.

To mitigate these issues, manufacturers may add stabilizers or use higher-grade polymers, but these solutions often increase costs. As a result, alternatives like pure plastic composites or heat-resistant materials are sometimes preferred in hot climates. Understanding WPC's thermal limits is crucial for selecting the right material for high-heat environments.