Toyobo Zenite® 251 LCP

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Toyobo Zenite® 251 LCP
Categories:	Polymer; Thermoplastic; Liquid Crystal Polymer (LCP); Liquid Crystal Polymer (LCP), Unfilled
Material Notes:	Product Description: This LCP is designed for low dielectric constant (Dk), excellent flow characteristics & mechanical strength and high temperature resistance. For use in injection molded electronics applications for thin walls. Availability: Africa & Middle East; Europe; Asia Pacific; Latin America; North America Information provided by Celanese
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Physical Properties	Original Value	Comments

Maximum Moisture Content	0.010
Linear Mold Shrinkage, Flow	0.0010 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.0050 cm/cm	ISO 294-4

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	14500 psi	ISO 527-2/5
Elongation at Break	1.9 %	ISO 527-2/5
Tensile Modulus	1.07e+6 psi	ISO 527-1
Flexural Strength	20200 psi	ISO 178
Flexural Modulus	1.02e+6 psi	ISO 178
Charpy Impact Unnotched	3.00 ft-lb/in²	ISO 179/1eU

Electrical Properties	Original Value	Comments
Dielectric Constant	2.7 @Frequency 1e+6 Hz	IEC 60250
	3.0 @Frequency 100 Hz	IEC 60250
Dissipation Factor	0.0029 @Frequency 100 Hz	IEC 60250
	0.0070 @Frequency 1e+6 Hz	IEC 60250
Arc Resistance	>= 127 sec

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	8.30 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	28.0 µin/in-°F	ISO 11359-2
Melting Point	662 °F	ISO 11357-3
Deflection Temperature at 1.8 MPa (264 psi)	554 °F	Unannealed; ISO 75-2/A
Flammability, UL94	V-0 @Thickness 0.406 mm

Processing Properties	Original Value	Comments
Rear Barrel Temperature	644 - 662 °F
Middle Barrel Temperature	662 - 680 °F
Front Barrel Temperature	680 - 698 °F
Nozzle Temperature	698 - 716 °F
Zone 4	698 - 716 °F	Injection
Mold Temperature	212 °F
Drying Temperature	302 °F
Dry Time	4.00 hour
Injection Pressure	7250 - 21800 psi
Back Pressure	<= 435 psi

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PHCQ6325 / 311018

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