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Technical Data Sheet
Drystar™ 0325 Copolyester


Applications
  • Jars-skin care pkg
  • Profiles

Product Description

Eastman is pleased to announce the launch of DRYSTAR* copolyesters. This new product-line is designed to meet the needs of converters seeking value-added solutions to their drying requirements of copolyesters. Eastman’s copolyesters are highly valued for their excellent balance of properties such as superior aesthetics, impact strength, and chemical resistance. These properties can be optimally realized when the resins are properly dehydrated in accordance to recommended drying conditions and equipment.

Recognizing this value, Eastman conceived Drystar™ copolyesters to allow converters with limited access to desiccant dryers to achieve these optimizations. In addition, some converters with desiccant dryers may still find Drystar™ copolyesters value-adding to attain production flexibility and cost saving by removing the drying process prior to injection molding, profile extruding, or extrusion blow molding copolyesters. The initial launch comprises of the commercialization of four grades of Drystar™ copolyesters, and Eastman has an on-going program to extend this strategic product-line in the future.

*DRYSTAR is only available in the Asia Pacific Region.



Typical Properties

PropertyaTest MethodbTypical Value, Unitsc
General Properties
Specific GravityD 7921.27
Mold Shrinkage 
     Parallel to Flow, 3.2-mm (0.125-in.) thicknessD 9550.002-0.005 mm/mm (0.002-0.005 in./in.)
Mechanical Properties (ISO Method)
Tensile Strength @ YieldISO 52748 MPa
Tensile Strength @ BreakISO 52729 MPa
Elongation @ YieldISO 5274 %
Elongation @ BreakISO 527200 %
Tensile ModulusISO 5272000 MPa
Flexural ModulusISO 1782100 MPa
Flexural StrengthISO 17867 MPa
Izod Impact Strength, Notched 
     @ 23°CISO 1809.4 kJ/m2
     @ -40°CISO 1804.4 kJ/m2
Mechanical Properties
Tensile Stress @ BreakD 63830 MPa (4300 psi)
Tensile Stress @ YieldD 63850 MPa (7200 psi)
Elongation @ BreakD 638180 %
Elongation @ YieldD 6384.4 %
Tensile ModulusD 6382030 MPa (2.9 x 105 psi)
Flexural StrengthD 79068 MPa (9800 psi)
Flexural ModulusD 7902060 MPa (3.0 x 105 psi)
Rockwell Hardness, R ScaleD 785108
Izod Impact Strength, Notched 
     @ 23°C (73°F)D 256105 J/m (1.9 ft·lbf/in.)
     @ -40°C (-40°F)D 25640 J/m (0.7 ft·lbf/in.)
Impact Strength, Unnotched 
     @ 23°C (73°F)D 4812NB
     @ -40°C (-40°F)D 4812NB
Optical Properties
HazeD 10030.2 %
Total TransmittanceD 100390 %
Thermal Properties (ISO Method)
Deflection Temperature 
     @ 0.455 MPa (66 psi)ISO 7570 °C
     @ 1.82 MPa (264 psi)ISO 7562 °C
Thermal Properties
Deflection Temperature 
     @ 0.455 MPa (66 psi)D 64870 °C (158 °F)
     @ 1.82 MPa (264 psi)D 64862 °C (143 °F)
Typical Processing Conditions
Drying Temperatured 71 °C (160 °F)
Drying Timed 6 hrs
Processing Melt Temperature 249-271 °C (480-520 °F)
Mold Temperature 16-38 °C (60-100 °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.
dDrying is only recommended for products previously opened and exposed to humid conditions.



Comments
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.{TAB}
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.

9/15/2022 3:49:48 PM