Our FlushSeal™ sealing system provides a seamless flush side-glass appearance for traditional door architectures. Initially popularized by the transition to electric vehicles (EVs) as a means of differentiation, this trend has extended to other mid- and luxury-segment models across various powertrains. Its versatility ensures a seamless integration process and enhances overall production efficiencies.

Cooper Standard continues to refine our FlushSeal™ technology to align with the latest vehicle concepts and continues to gain industry and global customer recognition for its innovative design, robustness, and cost-efficient execution.

Side-Glass Appearance with Traditional Door Architectures

Our FlushSeal™ system uses special rails to enable robust glass positioning and easy glass sliding for the regulator. This solution also allows for material flexibility, including EPDM, TPV, and Cooper Standard’s Fortrex® material which provides both sustainability benefits and enhanced performance. 


  • Premium flush glass appearance
  • Easy integration
  • Flexible material choices
  • Ease of Assembly
  • Uncompromising performance

Cooper Standard FlushSeal

Awards and Recognition

Recognized as a finalist for the 2023 Society of Plastics Engineers (SPE) Automotive Innovation Award, FlushSeal™ Sealing System, provides a patented solution that enables a flush glass appearance while maintaining the performance of a traditional door and offering the distinctive aesthetics and styling of a frameless door. The innovation, which is recognized in the Body Exterior category, is one of 28 technologies named a finalist in the annual program that honors the best companies in automotive plastics.