How does PVC perform in load-bearing outdoor sculpture bases compared to polypropylene?
When selecting materials for load-bearing outdoor sculpture bases, PVC and polypropylene are two common options. PVC (polyvinyl chloride) offers excellent durability and weather resistance, making it suitable for long-term outdoor use. It resists moisture, UV rays, and corrosion, but may become brittle over time in extreme temperatures. Polypropylene, on the other hand, is lighter and more flexible, with high impact resistance. However, it degrades faster under prolonged UV exposure unless treated. For heavy sculptures, PVC's rigidity provides better stability, while polypropylene's flexibility suits dynamic or lightweight designs. Choose PVC for maximum durability or polypropylene for cost-effective, lightweight solutions.
