Polysulfone (PSU) — The Transparent High-Performance Resin for Medical Filtration and Beyond

  Polysulfone (PSU) is a specialty engineering plastic combining high transparency, excellent heat resistance, and chemical stability, occupying a core position in medical devices and water treatment filtration. The global polysulfone market was valued at approximately USD 2.1 billion in 2025 and is projected to reach USD 2.8 billion by 2032, growing at a CAGR of 4.3%. Medical devices are the largest application segment for polysulfone, accounting for over 40% of consumption, with hemodialysis membranes, heart valves, and surgical instrument trays among its core uses; water treatment follows closely at over 15%. The S-Plastic G1000 supplied by resinsplastics.com is a transparent unfilled polysulfone resin with 0.3% moisture absorption at 50% RH over 24 hours, suitable for demanding applications such as hollow fiber membranes, precision filtration systems, and high-strength engineering components. Materials are accompanied by COA, ICP, RoHS, and MSDS reports, providing reliable compliant material options for medical and water treatment customers.