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Technical Data Sheet
Eastman Tritan™ Copolyester HM1040 Glass Filled

  • Appliances (food contact)
  • Consumer housewares - food contact (FC)
  • Consumer housewares-NFC
  • Small appliances non-food contact
Key Attributes
  • Contact clarity
  • Ease of processing
  • Excellent hydrolytic stability
  • Good chemical resistance
  • Good heat resistance
  • Good toughness
  • Increased modulus or stiffness

Product Description
Eastman Tritan™ HM1040 copolyester is a glass-reinforced version of Tritan (amorphous copolyester) that provides increased modulus and strength versus unreinforced versions. Tritan HM1040 contains 20% glass fiber as well as a mold release agent derived from vegetable based sources. Its most outstanding features are excellent chemical resistance, toughness, heat resistance, contact clarity, ease of processing, hydrolytic stability, and increased modulus or stiffness. Combined with Tritan™ copolyester’s outstanding chemical resistance and hydrolytic stability, these features give molded products improved modulus and strength in applications that are exposed to certain chemicals, aggressive cleaners, and disinfectants. Contact clarity is also advantageous for secondary operations such as laser welding.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Perpendicular Shrink 0.006 mm/min
Parallel ShrinkD 9550.002 mm/mm
% Glass Fiber 20
Specific GravityD 7921.32
Mechanical Properties (ISO Method)
Water Absorption, 24 h immersionISO 620.14 %
Tensile Stress @ YieldISO 52791 MPa
Tensile Strength @ BreakISO 52788 MPa
Elongation @ YieldISO 5274 %
Elongation @ BreakISO 5275 %
Tensile ModulusISO 5274926 MPa
Flexural ModulusISO 1784876 MPa
Flexural StrengthISO 178136 MPa
Izod Impact Strength, Notched 
     @ 23°CISO 18014 kJ/m2
     @ -40°CISO 18011 kJ/m2
Mechanical Properties
Tensile Stress @ YieldD 63892 MPa
Tensile Stress @ BreakD 63891 MPa
Elongation @ YieldD 6384 %
Elongation @ BreakD 6384 %
Tensile ModulusD 6384943 MPa
Flexural ModulusD 7904647 MPa
Flexural Yield StrengthD 790133 MPa
Rockwell Hardness, R ScaleD 785116
Izod Impact Strength, Notched 
     @ 23°CD 256117 J/m
Impact Strength, Unnotched 
     @ 23°CD 4812891 J/m
Optical Properties
Total TransmittanceD 100370 %
HazeD 100398 %
Thermal Properties
Vicat Softening Temperature 
     @ 5 kg loadD 1525109 °C
     @ 1 kg loadD 1525122 °C
Deflection Temperature 
     @ 0.455 MPaD 648103 °C
     @ 1.82 MPaD 64898 °C
Typical Processing Conditions
Drying Temperature 88 °C (190 °F)
Drying Time 4-6 hrs
Processing Melt Temperature 277-282 °C (531-540 °F)
Mold Temperature 48-76 °C (118-169 °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. 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.

3/4/2020 1:35:10 PM