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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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).