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Technical Data Sheet
Eastman TREVA™ Engineering Bioplastic GC6021 Clear

  • Eyewear
  • Non-medical housings & hardware for elec
  • Windows
Key Attributes
  • BPA-free
  • Dimensional stability
  • Excellent chemical resistance
  • Excellent flow
  • Low birefringence

Product Description
Eastman TREVA™ is a new cellulose-based engineering bioplastic that offers both high performance and reduced environmental impact. TREVA is chemically resistant, dimensionally stable and has excellent flow, BPA-free and low birefringence.

The United States Department of Agriculture’s (USDA’s) BioPreferred® program has Certified Eastman TREVA™ Engineering Bioplastic GC6021 with a biobased content of 42%.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Specific GravityD 7921.22
Mechanical Properties (Injection Molded), ISO Method
Tensile Stress @ BreakISO 52744 MPa
Tensile Strength @ YieldISO 52747 MPa
Elongation @ YieldISO 5275 %
Elongation @ BreakISO 52741 %
Tensile ModulusISO 5271881 MPa
Flexural ModulusISO 1781725 MPa
Flexural StrengthISO 17864 MPa
Izod Impact Strength, Notched 
     @ 23°CISO 18025 kJ/m2
     @ -40°CISO 18014 kJ/m2
Mechanical Properties
Tensile Stress @ YieldD 63850 MPa (7194 psi)
Tensile Stress @ BreakD 63848 MPa (6903 psi)
Elongation @ BreakD 63822 %
Flexural ModulusD 7901946 MPa (2.82 x 105 psi)
Rockwell Hardness, R ScaleD 785102
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 256195 J/m (3.65 ft·lbf/in.)
     @ -40°C (-40°F)D 25680 J/m (1.49 ft·lbf/in.)
Miscellaneous Properties
Mold ShrinkageD 9550.8 %
Permanence Properties
Water Absorption, 24 h immersionD 5702.2 %
Target Processing Conditions
Drying Temperature in a Desiccant Dryer 75 °C (170 °F)
Drying Time in a Desiccant Dryer 4 hours
Barrel Set Temperaturee 235 °C (455 °F)
Mold Temperature 85 °C (185 °F)
Injection Speed 30 mm/sec (1.2 in./sec)
Maximum Barrel Residence Time 4 minutes
Thermal Properties
Deflection Temperatured 
     @ 0.455 MPa (66 psi)D 648114 °C (238 °F)
     @ 1.82 MPa (264 psi)D 648100 °C (212 °F)
Vicat Softening TemperaturedD 1525130 °C (266 °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.
dConditioned 4 hours at 70°C (158°F).
eWith actual measured melt temperature not to exceed 260°C (500°F).

Properties reported here are typical of average lots. 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.

6/28/2018 2:48:26 PM