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Ensinger PEI

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Toray SIVERAS™ LCP Resin L304M35 Liquid Crystal Polymer (LCP), Glass + Mineral Filled
Categories: Polymer; Thermoplastic; Liquid Crystal Polymer (LCP)

Material Notes: GF + mineral filler reinforced, low warpage, high flow, LCP-(GF+MD)35.

General Siveras™ Notes: SIVERAS™ liquid crystal polyester resin offers the following properties: High strength and high modulus, High heat resistance, Dimensional stability, Good molding properties, Good vibration absorption properties. A special feature of SIVERAS™ is its superiority to conventional liquid crystal polymers in terms of molding properties (fluidity, stability in retention).

Features:

  • High strength, high modulus. SIVERAS™ offers superior strength and high modulus. Molded products feature a highly oriented in molecular chain, the thinner the molded products. This further improves strength and elastic modulus.
  • Heat resistance: The heat deflection temperature is 250°C or higher. Offering outstanding soldering heat resistance, it can be used stably for electronic parts for SMT.
  • Dimensional stability: No change in dimensions due to moisture absorption. The linear expansion rate in direction of flow is comparable to values for metal.
  • Molding properties: SIVERAS® offers outstanding fusion fluidity for molding of thin walled products. SIVERAS® can be molded at low pressure and offers fast crystallizing speeds to eliminate formation of flash. Can be molded at mold temperatures of 100°C degrees or less, as is true for PBT resins. The stability in retention during molding is on a par with conventional liquid crystal polymers.
  • Vibration absorption: SIVERAS™ offers outstanding vibration absorption regardless of high elastic modulus.

Information provided by Toray Resin Co.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.68 g/ccASTM D792
Water Absorption 0.010 %
@Time 86400 sec
in 23°C water; ASTM D570
Linear Mold Shrinkage, Flow 0.0014 cm/cm80X80X1MMT; Toray Method
Linear Mold Shrinkage, Transverse 0.0055 cm/cm80X80X1MMT; Toray Method
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 105ASTM D785
Tensile Strength 125 MPaASTM D638
Elongation at Break 2.5 %ASTM D638
Flexural Strength 160 MPaASTM D790
Flexural Modulus 13.0 GPaASTM D790
Izod Impact, Notched 60.0 J/mV-notched; ASTM D256
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 4.1ASTM D150
Dielectric Strength 1470 V/milASTM D149
Comparative Tracking Index 175 - 250 VUL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 8.00 - 19.0 µm/m-°CASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 270 °CASTM D648
Flammability, UL94 V-0
@Thickness 0.380 mm

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PTORAY9249 / 248938

Proto3000 – 3D Engineering Solutions

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