Celanese Crastin® LW9020 BK580 PBT+ASA-GF20

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Celanese Crastin® LW9020 BK580 PBT+ASA-GF20
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); PBT + ASA Blend, Glass Fiber Reinforced
Material Notes:	20% Glass Reinforced Polybutylene Terephthalate Blend with Low Warpage Characteristics Former DuPont product acquired by Celanese in 2022.
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Physical Properties	Metric	English	Comments

Density	1.35 g/cc	0.0488 lb/in³	ISO 1183
Melt Density	1.19 g/cc @Temperature 250 °C	0.0430 lb/in³ @Temperature 482 °F
Linear Mold Shrinkage, Flow	0.0030 cm/cm	0.0030 in/in	ISO 294-4, 2577
Linear Mold Shrinkage, Transverse	0.0070 cm/cm	0.0070 in/in	ISO 294-4, 2577

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	108 MPa	15700 psi	ISO 527-1/-2
Elongation at Break	2.5 %	2.5 %	ISO 527-1/-2
Tensile Modulus	7.00 GPa	1020 ksi	ISO 527-1/-2
Flexural Strength	160 MPa	23200 psi	ISO 178
Flexural Modulus	6.20 GPa	899 ksi	ISO 178
Poissons Ratio	0.35	0.35
Izod Impact, Notched (ISO)	7.00 kJ/m² @Temperature 23.0 °C	3.33 ft-lb/in² @Temperature 73.4 °F	ISO 180/1A
Charpy Impact Unnotched	5.00 J/cm² @Temperature 23.0 °C	23.8 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eU
Charpy Impact, Notched	0.700 J/cm² @Temperature 23.0 °C	3.33 ft-lb/in² @Temperature 73.4 °F	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm	IEC 62631-3-1
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm	IEC 62631-3-2
Dielectric Constant	3.5 @Frequency 1e+6 Hz	3.5 @Frequency 1e+6 Hz	IEC 62631-2-1
	3.7 @Frequency 100 Hz	3.7 @Frequency 100 Hz	IEC 62631-2-1
Dielectric Strength	34.0 kV/mm	864 kV/in	IEC 60243-1
Dissipation Factor	0.0019 @Frequency 100 Hz	0.0019 @Frequency 100 Hz	IEC 62631-2-1
	0.0178 @Frequency 1e+6 Hz	0.0178 @Frequency 1e+6 Hz	IEC 62631-2-1
Comparative Tracking Index	275 V	275 V	IEC 60112

Thermal Properties	Metric	English	Comments
Melting Point	225 °C	437 °F	10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)	205 °C	401 °F	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	150 °C	302 °F	ISO 75-1/-2
	180 °C	356 °F	Annealed; ISO 75-1/-2
Glass Transition Temp, Tg	120 °C	248 °F	10°C/min; ISO 11357-1/-2
Flammability, UL94	HB @Thickness 0.750 mm	HB @Thickness 0.0295 in	IEC 60695-11-10
	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in	IEC 60695-11-10
Flame Spread	38.0 mm/min @Thickness 1.00 mm	1.50 in/min @Thickness 0.0394 in	ISO 3795 (FMVSS 302)

Processing Properties	Metric	English	Comments
Melt Temperature	250 °C	482 °F	Optimum, Injection
	240 - 260 °C	464 - 500 °F	Range, Injection
Mold Temperature	80.0 °C	176 °F	Optimum, Injection
	30.0 - 130 °C	86.0 - 266 °F	Injection
Ejection Temperature	170 °C	338 °F	Injection
Drying Temperature	120 °C	248 °F	Injection
Dry Time	2.00 - 4.00 hour	2.00 - 4.00 hour	Injection, Dehumidified Dryer
Moisture Content	<= 0.040 %	<= 0.040 %	Injection
Hold Pressure	>= 60.0 MPa	>= 8700 psi	Injection

Descriptive Properties
Back pressure	As low as possible
Drying Recommended	yes		Injection
FMVSS Class	B		ISO 3795 (FMVSS 302)
Odor Class	3.5		VDA 270
Part Marking Code	>PBT+ASA-GF20<		ISO 11469
Polymer	(PBT+ASA)-GF20
Processing Hold Pressure Time (s/mm)	3		Injection
Resin Identification	PBT+ASA-GF20		ISO 1043

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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PDSX5025 / 197665

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