Product Code: EM2-EX050
SDS Sheets: EU | US
TDS Sheets: US
Pack Size
202 g
1.01 kg
10.1 kg
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Prices listed are EXW price (Morrisville, PA US) in USD. Prices vary depending on currency and Incoterms.

Product data and descriptions listed are typical values, not intended to be used as specification.

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  • HMIS

  • Boiling Point (˚C/mmHg)


Additional Properties

  • Hardness

  • Safety

  • Packaging Under

  • 2-Part 100:1 Kit

  • 202 g kit – contains 200 g part A (base), 2 g part B (cross-linker)
  • 1.01 kg kit – contains 1000 g part A (base), 10 g part B (cross-linker)
  • Gelest® ExSil® 50: 2-Part Silicone Elastomer

    ExSil® 50 (EM2-EX050) is a two component high elongation silicone elastomer developed for medical applications, specifically matching the properties of soft tissue.

    Cured ExSil® 50 Properties

  • Tensile Strength: 3 MPa
  • Elongation @ Break: 6,000%
  • Durometer, Shore A: 5
  • Tear Strength: 5-7 kN/m
  • Elongation @ Tear Failure: 1,000-1,500%
  • Volatiles (4 hrs/150 °C): <0.1 wt%
  • Silicones and Polymers, Applied Technology

    Soft Materials with Recoverable Shape Factors from Extreme Distortion States – Goff et al.

    The new materials reported here are specifically polysiloxanes, derived from high molecular weight uncross-linked polymeric liquids that when formed into nanocomposites demonstrate exceptional elongations (>5000%). These materials are readily manufactured and satisfy the structural requirements for long-term stretchable and implantable devices with integrated fluidics and electronics in soft tissue.  Click here for product information on Gelest xPDMS (PP2-RG09).

    Silicones and Polymers, Applied Technology

    Soft Tissue Compliant Silicones for Medical Devices

    ExSil® silicone nanocomposites exhibit surprising material properties, such as up to 5,000% stretchability with elastic recovery, the ability to resist tear failure (both initiation and propagation), self-healing/sealing behavior and intrinsically low extractables. As a group, these materials demonstrate an ability to resist and recover from conditions that would normally result in the failure of other elastomers.

    Product Resource

    Ultra-high Elongation Silicone Elastomers – Arkles et al.

    Silicone elastomers with elongations approaching 5,000%, nearly four times greater than any other commercial elastomer, are now available. These new elastomers utilize a cure mechanism that generates elastomeric properties by driving linear polymers to extremely high molecular weights with concomitant formation of intra- and inter-chain entanglements, rather than covalent crosslinking.  Click here for product information on Gelest ExSil® 100 (EM2-EX100).