Syensqo has added a new material to its portfolio of Radel polyphenyl sulfone (PPSU) solutions for durable biopharma applications, surgical instruments, and medical devices. White Radel, the company claims, is considerably whiter than traditional medical grade Radel PPSU compounds.

“We are proud to celebrate 35 years of Radel PPSU,” stated Floryan De Campo, vice president, head of Life Solutions at Syensqo‘s Specialty Polymers global business unit. “With its high heat and chemical resistance as well as mechanical strength and repeated sterilizability, the polymer has emerged as a cornerstone in our advanced materials offering for the healthcare industry, helping our customers push the boundaries for safer, more efficient and sustainable products.”

Radel has provided an alternative to traditional medtech materials like metals. Its high strength-to-weight ratio enhances ergonomics for medical professionals, facilitating the manipulation of tools. Moreover, medical and pharmaceutical Radel PPSU compounds meet the strictest industry guidelines and standards, including ISO 10993 biocompatibility and USP Class VI approval.

The novel White Radel product combines the PPSU resin’s mechanical properties—including high impact strength in compliance with ASTM D6394-21a—with the bright white aesthetic color often preferred for medical devices. It shows excellent stability in sterilization processes such as gamma irradiation and autoclaving, as well as durable chemical resistance against harsh disinfectants. Its lack of Bisphenol-A (BPA) makes it a safe and compliant alternative to other white medical polymers, company executives said.

In addition, the design freedom and processing versatility of Radel have opened attractive opportunities for complex geometries, part integration, and reduced manufacturing costs. As a high-flow material, White Radel is an ideal choice for precise and efficient medical device injection molding. Other grades offer exceptional melt strength and adaptability in extrusion processes. Moreover, semi-finished components can be machined with ease, while Radel filaments have successfully expanded the wide application potential to 3D printing for rapid prototyping and small-scale production volumes.

Radel is a registered trademark of Syensqo.

Syensqo is a science company developing solutions that enhance the way people live, work, travel and play. Inspired by the scientific councils which Ernest Solvay initiated in 1911, the company employs a team of more than 13,000 associates. Syensqo’s solutions contribute to safer, cleaner, and more sustainable products found in homes, food and consumer goods, planes, cars, batteries, smart devices, and health care applications.