Click for PDF
Technical Data Sheet
Eastman Spectar™ Clear Copolyester

  • Lenticular
  • Lighting
  • Skylights
  • Strapping
Key Attributes
  • Easy to print and decorate
  • Excellent clarity
  • Excellent thermoforming characteristics
  • Good chemical resistance
  • Odorless
  • Outstanding impact resistance
  • Outstanding toughness allows downgauging
  • Resists chipping and cracking
  • Versatile - easy to fabricate

Product Description
Eastman Spectar™ Clear is a copolyester, developed by Eastman to achieve measurably improved sheet clarity and edge color while maintaining the performance characteristics for which Eastman Spectar™ copolyester has become known in the industry. It offers the thermoformability and ease of fabrication of Eastman Spectar™ copolyester along with significantly improved clarity. Eastman Spectar™ Clear also offers approximately double the notch impact strength, 50% higher instrumented impact strength and better chemical resistance when compared to traditional Spectar™ Copolyester.

The GREENGUARD INDOOR AIR QUALITY CERTIFIED® Mark is a registered certification mark used under license through the GREENGUARD Environmental Institute (GEI). GEI is an industry-independent, non-profit organization that oversees the GREENGUARD Certification Program. The GREENGUARD Certification Program is an industry independent, third-party testing program for low-emitting products and materials for indoor environments. For more information about GEI and to obtain printable certificates for Eastman™ Copolyesters, visit Choose Eastman Chemical Company under the Manufacturer category and click search to display a list of our products.

Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
Thickness of Sheet Tested 3 mm (0.118 in.)
Intrinsic ViscosityEMN-A-AC-G-V-10.73
DensityD 1505 1.23 g/cm3
Water Absorption, 24 h immersionD 5700.19 %
Electrical Properties
Arc ResistanceD 495130 sec
Static Decay RateD 4470Failed to Discharge
Surface ResistivityD 2571017 ohms/square
Volume ResistivityD 2571016 ohm·cm
Mechanical Properties
Tensile Strength @ YieldD 63848 MPa (6900 psi)
Tensile Strength @ BreakD 63853 MPa (7700 psi)
Elongation @ YieldD 6385 %
Elongation @ BreakD 638340 %
Tensile ModulusD 6381800 MPa (2.6 x 105 psi)
Flexural Strength 
     @ 5% strainD 79071 MPa (10300 psi)
Flexural ModulusD 7902000 MPa (2.9 x 105 psi)
Impact Strength, Unnotched 
     @ 23°C (73°F)D 4812NB
     @ -30°C (-22°F) NB
Izod Impact Strength, Notched 
     @ 0°C (32°F) 113 J/m (2.2 ft·lbf/in.)
     @ 23°C (73°F)D 256NB
     @ -30°C (-22°F) 83 J/m (1.6 ft·lbf/in.)
Impact Resistance (Puncture), Energy @ Max. Load 
     @ 0°C (32°F) 42 J (30 ft·lbf)
     @ 23°C (73°F)D 376341 J (29 ft·lbf)
     @ -30°C (-22°F) 52 J (36 ft·lbf)
Rockwell Hardness, R ScaleD 785107
Optical Properties
HazeD 10030.5 %
     @ 60°D 2457150
Total TransmittanceD 100391 %
Yellowness IndexE 3130.81
     a* -0.15
     b* 0.34
     L*E 31395.74
Thermal Properties
Deflection Temperature 
     @ 0.455 MPa (66 psi) 77 °C (171 °F)
     @ 1.82 MPa (264 psi)D 64873 °C (163 °F)
Vicat Softening TemperatureD 152586 °C (187 °F)
Coefficient of Linear Thermal ExpansionD 6967.62 x 10-5 /°C (mm/mm·°C) (4.26 x 10-5 /°F (in./in.·°F))
UL Flammability ClassificationUL 94HB

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.

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.

2/28/2018 11:35:39 AM