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Technical Data Sheet
Eastman Tritan™ Copolyester TX1801 Natural

  • Blow molding
  • Industrial
Key Attributes
  • Ease of processing
  • Excellent clarity
  • Excellent hydrolytic stability
  • Good chemical resistance
  • Good heat resistance
  • Outstanding impact resistance

Product Description
Eastman Tritan™ TX1801 copolyester is an amorphous copolyester specifically developed for use in blow molding applications. Eastman Tritan™ Copolyester TX1801 contains a mold release derived from vegetable based sources. Its most outstanding features are excellent toughness, hydrolytic stability, heat resistance, and chemical resistance. In addition, this new generation copolyester offers excellent appearance and clarity. Eastman Tritan™ Copolyester TX1801 may be used in repeated use food contact articles under United States Food and Drug Administration (FDA) regulations.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Specific GravityD 7921.18
Mold ShrinkageD 9550.006 mm/mm (0.006 in./in.)
Mechanical Properties (ISO Method)
Tensile Strength @ YieldISO 52745 MPa
Tensile Strength @ BreakISO 52751 MPa
Elongation @ YieldISO 5277 %
Elongation @ BreakISO 527142 %
Tensile ModulusISO 5271569 MPa
Flexural ModulusISO 1781494 MPa
Flexural StrengthISO 17860 MPa
Izod Impact Strength, Notched 
     @ 23°CISO 18078 kJ/m2
     @ -40°CISO 18012 kJ/m2
Mechanical Properties
Tensile Stress @ YieldD 63845 MPa (6500 psi)
Tensile Stress @ BreakD 63852 MPa (7600 psi)
Elongation @ YieldD 6387 %
Elongation @ BreakD 638139 %
Tensile ModulusD 6381609 MPa (2.3x105 psi)
Flexural ModulusD 7901522 MPa (2.2x105 psi)
Flexural Yield StrengthD 79064 MPa (9300 psi)
Rockwell Hardness, R ScaleD 785110
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 256842 J/m (15.8 ft·lbf/in.)
Impact Strength, Unnotched 
     @ 23°C (73°F)D 4812NB
Impact Resistance (Puncture), Energy @ Max. Load 
     @ 0°C (32°F)D 376365 J (48 ft·lbf)
     @ 23°C (73°F)D 376362 J (46 ft·lbf)
     @ -40°C (-40°F)D 376367 J (49 ft·lbf)
Optical Properties
Total TransmittanceD 100391 %
HazeD 1003<1 %
Thermal Properties
Deflection Temperature 
     @ 0.455 MPa (66 psi)D 648101°C-214°F
     @ 1.82 MPa (264 psi)D 64885°C-185°F
Typical Processing Conditions
Drying Temperature 88°C-190°F
Drying Time 4-6 hrs
EBM Processing Melt Temperature 235-255 °C (455-490 °F)
EBM Blow Mold Temperature 15-50 °C (60-122 °F)
ISBM Processing Melt Temperature 260-280 °C (500-536 °F)
ISBM Injection Mold Temperature 40-65 °C (104-149 °F)
ISBM Blow Mold Temperature 35-55 °C (95-131 °F)

aUnless noted otherwise, all tests are run at 23°C (73°F) and 50% relative humidity.
bUnless noted otherwise, the test method is ASTM.
cUnits are in SI or US customary units.

Technical Disclaimer
Eastman makes no representation and disclaims any warranty that the material in any particular shipment will conform exactly to the values given.  Values as well as the performance of the final molded article may be affected by various factors such as the part design, mold design or tooling,  drying, processing conditions as well as coloring or pigmentation of the product. No warranty of merchantability or fitness for use is made, and nothing herein waives any of the Seller''s conditions of sale. You must make your own determination of the suitability of this product in your specific application due to the many factors (e.g. design, processing and conditions of use) that affect the performance of the final molded article.  Suitability of use should be evaluated with appropriate testing and analysis. The processing melt temperature and mold temperature refer to the actual resin melt temperature and actual mold surface temperature respectively. Consider overall resin residence time, part shot size utilization and part geometry to set appropriate processing melt temperature and mold temperature in order to minimize IV loss and maximize molded part performance.

Properties reported here are based on limited testing of Tritan TX1801. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

9/26/2019 9:49:36 AM