Eastman Eastar BR003 Natural PCTA Copolyester

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Eastman Eastar BR003 Natural PCTA Copolyester
Categories:	Polymer; Thermoplastic; Polyester, TP; PCTA Polyester Alloy; Polycyclohexylenedimethylene Terephthalate (PCT)
Material Notes:	Eastar™ BR003 Copolyester contains a mold release additive. It has excellent appearance and is nearly water-clear. Its most outstanding features are its chemical resistance and processing capabilities. Exposure to aromatic oils often causes crazing or actual fracture of many polymer resins, but BR003 maintains its physical properties when exposed to these oils, and its appearance is virtually unchanged. BR003 is specifically formulated to provide the optimal combination of chemical resistance, bristle retention, strength, stiffness, processability, clarity, colorability, and feel for toothbrushes. Under existing United States Food and Drug Administration(FDA) regulations, Eastar™ BR003 copolyester may lawfully be used to make food contact articles which comply with the specifications and conditions of use in 21 CFR 177.1240. Migration tests on BR003 samples meet the compliance requirements of 21 CFR 177.1240(e)(1),(2) and (3). Application/Uses: Oral hygiene Plastics for hygiene feminine products Toothbrushes
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Physical Properties	Metric	English	Comments

Density	1.20 g/cc	0.0434 lb/in³	ASTM D792
Linear Mold Shrinkage, Flow	0.0020 - 0.0060 cm/cm @Thickness 3.20 mm	0.0020 - 0.0060 in/in @Thickness 0.126 in	ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	103	103	ASTM D785
Tensile Strength, Ultimate	46.0 MPa	6670 psi	ISO 527
	51.0 MPa	7400 psi	ASTM D638
Tensile Strength, Yield	47.0 MPa	6820 psi	ASTM D638 and ISO 527
Elongation at Break	200 %	200 %	ISO 527
	320 %	320 %	ASTM D638
Elongation at Yield	4.0 %	4.0 %	ISO 527
	5.0 %	5.0 %	ASTM D638
Tensile Modulus	1.80 GPa	261 ksi	ISO 527
Flexural Yield Strength	65.0 MPa	9430 psi	ISO 178
	69.0 MPa	10000 psi	ASTM D790
Flexural Modulus	1.85 GPa	268 ksi	ISO 178
	2.00 GPa	290 ksi	ASTM D790
Izod Impact, Notched	0.800 J/cm	1.50 ft-lb/in	ASTM D256
	0.400 J/cm @Temperature -40.0 °C	0.749 ft-lb/in @Temperature -40.0 °F	ASTM D256
Izod Impact, Unnotched	NB @Temperature 23.0 °C	NB @Temperature 73.4 °F	ASTM D4812
	NB @Temperature -40.0 °C	NB @Temperature -40.0 °F	ASTM D4812
Izod Impact, Notched (ISO)	4.80 kJ/m² @Temperature -40.0 °C	2.28 ft-lb/in² @Temperature -40.0 °F	ISO 180
	7.80 kJ/m² @Temperature 23.0 °C	3.71 ft-lb/in² @Temperature 73.4 °F	ISO 180
Puncture Energy	42.0 J @Temperature 23.0 °C	31.0 ft-lb @Temperature 73.4 °F	Energy @ Max. Load; ASTM D 3763
	48.0 J @Temperature -40.0 °C	35.4 ft-lb @Temperature -40.0 °F	Energy @ Max. Load; ASTM D 3763

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	73.0 °C	163 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	149 °F	ASTM D648

Optical Properties	Metric	English	Comments
Haze	0.30 %	0.30 %	ASTM D1003
Transmission, Visible	89 %	89 %	Regular transmittance per ASTM D 1003
	91 %	91 %	Total Transmittance; ASTM D 1003

Processing Properties	Metric	English	Comments
Melt Temperature	230 - 280 °C	446 - 536 °F
Mold Temperature	15.0 - 30.0 °C	59.0 - 86.0 °F
Drying Temperature	70.0 °C	158 °F
Dry Time	3.00 hour	3.00 hour

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	See notes for details.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PEA025 / 35223

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