Eastman Tritan MX731 copolyester


  • 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

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.

Product availability

If you are interested in learning more about product availability in your area, please complete the “Make an inquiry” form on this page.

If applicable, authorized distributors are in the regions listed below, with more details provided in the “Authorized distributors” section.

  • 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.