How does the weatherability of PVC compare to polypropylene in outdoor armchairs?

When choosing materials for outdoor armchairs, weatherability is a critical factor. PVC (polyvinyl chloride) and polypropylene are both popular plastics, but they differ in their ability to withstand outdoor conditions.

PVC offers excellent weather resistance, including UV stability and moisture resistance, making it durable for long-term outdoor use. However, it can become brittle over time if exposed to extreme temperatures.

Polypropylene, on the other hand, is highly resistant to UV rays and chemicals, but it may warp or degrade faster under prolonged sunlight compared to PVC. Both materials require minimal maintenance, though PVC often retains its color better.

For outdoor armchairs, PVC is generally more weather-resistant, but polypropylene may be preferred for its lightweight and eco-friendly properties. The best choice depends on climate and usage needs.