Eastman Eastar GN046 Copolyester, Natural

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Eastman Eastar GN046 Copolyester, Natural (discontinued **)
Categories:	Polymer; Thermoplastic; Polyester, TP; Polyethylene Terephthalate (PET); Polyethylene Terephthalate (PET), Unreinforced
Material Notes:	Eastar Copolyester GN046 is a very high melt strength copolyester targeted for extrusion blow molding applications. Blow molding of large parts (up to several pounds) are possible with this material. This product is certified to ANSI/NSF Standard 51. Applications/Uses Bottles Key Attributes Effective barrier properties Excellent Clarity Excellent colorability Good stiffness Excellent chemical resistance Toughness Easy to extrude, cut, print, and seal High gloss appearance Good impact strength
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Physical Properties	Metric	English	Comments

Specific Gravity	1.27 g/cc	1.27 g/cc	ASTM D792
Linear Mold Shrinkage	0.0020 - 0.0050 cm/cm @Thickness 3.20 mm	0.0020 - 0.0050 in/in @Thickness 0.126 in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	108	108	ASTM D785
Tensile Strength at Break	28.0 MPa	4060 psi	ASTM D638
Tensile Strength, Yield	50.0 MPa	7250 psi	ASTM D638
Elongation at Break	110 %	110 %	ASTM D638
Elongation at Yield	4.0 %	4.0 %	ASTM D638
Flexural Strength	68.0 MPa	9860 psi	ASTM D790
Flexural Modulus	2.10 GPa	305 ksi	ASTM D790
Izod Impact, Notched	0.530 J/cm @Temperature -40.0 °C	0.993 ft-lb/in @Temperature -40.0 °F	ASTM D256
	0.940 J/cm @Temperature 23.0 °C	1.76 ft-lb/in @Temperature 73.4 °F	ASTM D256
Izod Impact, Unnotched	NB	NB	ASTM D4812
	NB @Temperature -40.0 °C	NB @Temperature -40.0 °F	ASTM D4812
Puncture Energy	36.0 J	26.6 ft-lb	Puncture Resistance @Max Load, 23°C; ASTM D3763
	35.0 J @Temperature -40.0 °C	25.8 ft-lb @Temperature -40.0 °F	Puncture Resistance at Max Load; ASTM D3763

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	70.0 °C	158 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	62.0 °C	144 °F	ASTM D648
Vicat Softening Point	83.0 °C	181 °F	1kg load; ASTM D1525

Optical Properties	Metric	English	Comments
Haze	0.60 %	0.60 %	ASTM D1003
Gloss	152 %	152 %	at 60°; ASTM D2457
Transmission, Visible	87 %	87 %	Regular Transmittance; ASTM D1003
	90 %	90 %	Total Transmittance; ASTM D1003

Processing Properties	Metric	English	Comments
Melt Temperature	249 - 271 °C	480 - 520 °F
Mold Temperature	16.0 - 38.0 °C	60.8 - 100 °F
Drying Temperature	71.0 °C	160 °F
Dry Time	6 hour	6 hour

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PE9041 / 35097

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