Discover how Unsaturated Polyester Resins (UPR) have transformed modern industrial design through durability, flexibility, and innovation. Learn why industries rely on unsaturated polyester resins today. The Rise of Unsaturated Polyester Resins in Reinforced Plastics In the world of materials, few have shaped modern manufacturing like UPR. Unsaturated Polyester Resins (UPR) have become a foundation for […]