PurSil® Thermoplastic Silicone Polyether Urethane is a copolymer containing a synergistic combination of soft segments: silicone and polyalkylene oxide. The hard segments consists of an aromatic diisocyanate with a low molecular weight glycol chain extender.

PurSil® thermoplastic silicone-polyether-urethane combines the biocompatibility and biostability of conventional silicone elastomers with the processability and toughness of Thermoplastic Polyether Urethane (TPU). The product is available as a standard 80A hardness grade with 20% or 35% silicone. Other hardness grades of silicone content may be custom synthesized and all grades of the polymer are available with various Surface Modifying End Groups (SME®).

• Biostability and biocompatibility
• In vivo and in vitro stability
• Excellent mechanical properties relative to conventional silicone elastomers
• Hydrophobic, non-adhesive silicone surface
• Thromboresistant
• Outstanding elasticity
• Available with various Surface Modifying End Groups®
• FDA Master File

• Current applications:
  Medical devices and technologies, e.g. cardiovascular and neurostimulation devices.
• Customized applications:
  We can produce custom-fabricated components on your request.

PurSil® is a registered trademark of DSM and is a brand marketed by DSM PTG, formerly the Polymer Technology Group (PDF: 246 Kb).