Product description

Eastman Tritan™ Copolyester MX731 is an amorphous product with excellent appearance and clarity. Eastman Tritan™ Copolyester MX731 is a high flow medical grade of Eastman Tritan™ that has viscosity reductions of 40-50% relative to Eastman Tritan™ Copolyester MX711. Eastman Tritan™ Copolyester MX731 contains a mold release derived from vegetable based sources. Eastman Tritan™ Copolyester MX731 has many outstanding features that include excellent toughness, hydrolytic stability, heat resistance, chemical resistance, and melt flowability. Eastman Tritan™ Copolyester MX731 has been formulated for medical devices. Eastman Tritan™ Copolyester MX731 has been tested for FDA/ISO 10993 and USP Class VI Biological Evaluation testing after Gamma and ETO sterilization.


  • Blood contact and dialysis
  • Blood tubes
  • Fluid administration
  • Medical devices
  • Medical equipment
  • Medical labware

    Key attributes

    • Excellent clarity
    • Excellent hydrolytic stability
    • Fast cycle times
    • Fast drying times
    • Good chemical resistance
    • Good color stability upon ETO sterilization
    • Good color stability upon gamma sterilization
    • Good heat resistance
    • Good melt flowability
    • Good toughness
    • Improved processability over traditional copolyesters

      Regulatory information and data sheets

      Product availability

      Check with local sales office to determine exact availability by country. Orders subjected to minimum order quantity.
      • Asia Pacific
      • Europe, Middle East, & Africa
      • Latin America
      • North America

      Authorized distributors

      Please select a region and country for a list of authorized distributors. If a country is not listed for a region, contact Eastman for further information.
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