Are polypropylene joints more durable than PVC in articulated animal sculptures?

When creating articulated animal sculptures, the choice of joint material significantly impacts longevity and performance. Polypropylene and PVC are two common options, but which is more durable?

Polypropylene joints offer high flexibility, resistance to fatigue, and excellent chemical stability, making them ideal for repetitive movement. They withstand stress without cracking, ensuring long-term functionality. However, polypropylene can degrade under prolonged UV exposure unless treated.

PVC joints are rigid and cost-effective, providing good initial strength. Yet, they become brittle over time, especially in cold environments, and may crack with frequent articulation.

For durability in dynamic sculptures, polypropylene often outperforms PVC due to its resilience. However, consider environmental factors and budget when choosing between them.