What role does plasticizer type play in the flexibility of PVC bar stools?

The flexibility of PVC bar stools is heavily influenced by the type of plasticizer used in their manufacturing. Plasticizers are additives that soften the PVC material, making it more pliable and comfortable for seating. Different plasticizer types, such as phthalates or bio-based alternatives, affect the stool's flexibility, durability, and even environmental impact. For instance, phthalate-based plasticizers often provide superior flexibility but may raise health concerns, while newer bio-based options offer a safer, though sometimes less durable, alternative. Understanding the role of plasticizers helps in selecting the right PVC bar stool for both comfort and longevity.