Plunger stoppers made from Medalist TPEs perform well in both glass and plastic syringe barrels. Medalist stoppers achieve a consistent piston release and travel force due to a low coefficient of friction. Medalist TPEs offer several benefits over current stopper material technologies, including thermoplastic vulcanizates (TPVs), natural and isoprene rubber. Compared to thermoset rubber, Medalist TPE molding cycle times are reduced significantly, and scrap can be recycled. Also, the precision of injection molding allows for intricate designs with very tight dimensional tolerances. With Medalist TPEs, stoppers can be injection molded or overmolded onto syringe plungers, eliminating an assembly step.

Products

Syringe Tip Series

Medalist TPEs for Syringe Plunger Stoppers

Teknor Apex offers a diverse portfolio of products for syringe plunger stoppers that are designed to suit a wide range of syringe systems.  These sterilizable Medalist grades offer better compression set versus competitive TPEs for improved sealing, as well as exhibit excellent gliding performance as the plunger moves through the shaft. 

Applications
  • Glass and plastic syringes
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