Eastar™ DG021

About
Eastar™ copolyester DG021 is a glass-reinforced amorphous copolyester that provides increased modulus and strength versus unreinforced versions. Eastar™ copolyester DG021 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. 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.&&

Product Description
SupplierEastman
Generic PCTG
Material StatusCommercial: Active
FeaturesGood Rigidity,Excellent Processability,Good Clarity,Good flexibility,Hydrolysis stability,Heat Resistance, Good,Solvent resistance,Amorphous
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.37g/cm³ASTM D792
Shrinkage rate
MD0.10%ASTM D955

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃97J/mASTM D256
Notched impact strength of cantilever beam
23℃950J/mASTM D256

THERMALNominal valueUnitTest method
Hot deformation temperature
0.45 MPa, unannealed81.0
1.8 MPa, unannealed77.0

optical performanceNominal valueUnitTest method
Transmittance
total80.0%ASTM D1003
Haze72%ASTM D1003

MECHANICALNominal valueUnitTest method
Rockwell hardness
R-level115 ASTM D785
Tensile modulus5490MPaASTM D638
tensile strength
yield100MPa
fracture96.0MPa
Tensile strain
yield3.0%
fracture4.0%
Bending modulus5360MPaASTM D790
bending strength
yield141MPaASTM D790

Process Conditions
injectionNominal valueUnitTest method
Drying temperature71°C
Drying time6.0hr
Processing (melt) temperature259 to 271°C
Mold temperature26 to 38°C

Notes
1. Typical properties: these are not to be construed as specifications.
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