How does polypropylene’s resistance to fatigue compare to PVC for high-use benches?

When selecting materials for high-use benches, fatigue resistance is a critical factor. Polypropylene and PVC are both popular choices, but their performance under repetitive stress differs significantly. Polypropylene excels in fatigue resistance due to its semi-crystalline structure, which allows it to withstand repeated bending and loading without cracking. This makes it ideal for high-traffic areas like parks, transit stations, and public spaces.

PVC, while durable, is more prone to fatigue over time, especially in extreme temperatures. Its rigid structure can lead to micro-cracks under constant stress, reducing its lifespan in demanding applications. For benches subjected to frequent use, polypropylene generally offers superior long-term performance and lower maintenance requirements.

Ultimately, the choice depends on environmental conditions and usage intensity, but polypropylene’s fatigue resistance often makes it the better option for high-use scenarios.