Eastman Eastar GN125 Copolyester, Natural

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Eastman Eastar GN125 Copolyester, Natural (discontinued **)
Categories:	Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET); Polyethylene Terephthalate (PET), Unreinforced
Material Notes:	Eastar Copolyester GN125 is a glycol modified polyethylene terephthalate (PET) that contains an ultraviolet light inhibitor. This product is recommended for indoor applications requiring enhanced color stability. Eastar copolyester GN125 will not crystallize and as a result, offers a wider processing latitude than conventional crystallizable polyesters. This product offers an excellent combination of clarity, toughness, and melt strength that makes if useful for a variety of processing techniques and end-use applications. Applications/Uses Cosmetics/personal care packaging Writing Instruments Point of purchase displays Toys/Sporting goods Lighting
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Physical Properties	Original Value	Comments

Specific Gravity	1.30 g/cc	ASTM D792
Water Absorption	0.13 %	24h Immersion; ASTM D570
Linear Mold Shrinkage	0.0020 - 0.0050 cm/cm @Thickness 3.20 mm	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	106	ASTM D785
Tensile Strength at Break	27.0 MPa	ISO 527
	30.0 MPa	ASTM D638
Tensile Strength, Yield	49.0 MPa	ASTM D638
	49.0 MPa	ISO 527
Elongation at Break	110 %	ISO 527
	150 %	ASTM D638
Elongation at Yield	4.0 %	ISO 527
	4.3 %	ASTM D638
Tensile Modulus	2.01 GPa	ASTM D638
	2.02 GPa	ISO 527
Flexural Strength	69.0 MPa	ISO 178
	71.0 MPa	ASTM D790
Flexural Modulus	2.10 GPa	ISO 178
	2.20 GPa	ASTM D790
Izod Impact, Notched	0.270 J/cm @Temperature -40.0 °C	ASTM D256
	98.0 J/m @Temperature 23.0 °C	ASTM D256
Izod Impact, Unnotched	NB	ASTM D4812
	NB @Temperature -40.0 °C	ASTM D4812
Izod Impact, Notched (ISO)	3.90 kJ/m² @Temperature -40.0 °C	ISO 180
	8.10 kJ/m² @Temperature 23.0 °C	ISO 180

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	69.0 °C	ISO 75
	69.0 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	60.0 °C	ASTM D648
	62.0 °C	ISO 75

Optical Properties	Original Value	Comments
Haze	0.30 %	ASTM D1003
Transmission, Visible	91 %	Total Transmittance; ASTM D1003

Processing Properties	Original Value	Comments
Melt Temperature	249 - 271 °C
Mold Temperature	16.0 - 38.0 °C
Drying Temperature	71.0 °C
Dry Time	4 - 6 hour

**
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