Westar® RU and RS Lined Seals

The component solution for risk reduction

West lined seals have market-proven elastomer formulations supported by strong technical and regulatory documentation, and are optimized for device performance. These seals are designed in accordance with industry standards for single-dose or multi-dose applications. 

Westar RU LogoWestar RS Logo

West’s laminate technology is best-in-class and leverages a bilayer seal to ensure industry leading specifications for resealability, reduced fragmentation and minimal contribution of particles. West offers lined seals in ready-to-use and ready-to-sterilize formats.West cartridge components are consistent, reliable and comply with global pharmacopeia standards.   

Westar Lined Cartridge seals Table

Westar Video Poster with logos





Westar® is a registered trademark of West Pharmaceutical Services, Inc., in the United States and other jurisdictions.