How do additives improve polypropylene’s resistance to fading in outdoor installations?

Polypropylene is widely used in outdoor installations due to its versatility and cost-effectiveness. However, prolonged exposure to sunlight can cause fading and degradation. Additives such as UV stabilizers and antioxidants play a crucial role in improving polypropylene's resistance to fading. UV stabilizers absorb or block harmful ultraviolet rays, preventing polymer chain breakdown. Antioxidants inhibit oxidative reactions that weaken the material. Together, these additives significantly extend the lifespan of polypropylene products, maintaining their appearance and structural integrity in harsh outdoor environments.