How do artists address polypropylene’s sensitivity to prolonged UV exposure in public art?

Polypropylene is a popular material in public art due to its lightweight and versatile nature, but its sensitivity to prolonged UV exposure poses challenges. Artists employ several strategies to mitigate this issue. UV stabilizers are often mixed into the polypropylene during fabrication, slowing degradation. Protective coatings, such as acrylic or polyurethane layers, act as barriers against sunlight. Some artists opt for pigmented polypropylene, as darker colors absorb UV rays more effectively. Strategic placement—shaded areas or rotating installations—also reduces direct sunlight exposure. Regular maintenance, including recoating and cleaning, further extends the artwork's lifespan. By combining these methods, artists ensure polypropylene public art remains vibrant and durable for years.