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Ensinger PEI

LG Chemical EH910 PMMA, General Purpose Grade for Extrusion  (discontinued **)
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:
  • Excellent solvent resistance
  • Highest of all grades in heat resistance, mechanical strength, surface hardness and stress cracking resistance
Features:
  • Excellent transparency and elegance
  • Weather resistance and chemical resistance
  • Surface hardness and coloring property
  • Superior electrical resistance and mechanical properties
  • No harm caused

Applications:

  • Automotive Parts:
    • Rear lamp cover
    • Turn signal lamp cover
    • Indoor lamp cover
    • Rear quarter glass
    • Automotive badge
  • Electric or Electronic Parts:
    • LCD light guide plate
    • Microwave oven door/front panel
    • Cassette door
    • VCR cover/front panel
    • Car stereo panel
    • Dial scale
    • Light pipe
  • Sheet:
    • Signboard
    • Showcase
    • Light dome
    • Aquarium
    • Picture frame
  • Lighting and Miscellaneous:
    • Solid surface
    • Lighting cover
    • Ornaments
    • Watch crystal
    • Optical lens
    • Piano keyboard

Information Provided by LG Chem
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.18 g/cc1.18 g/ccASTM D792
Water Absorption 0.30 %0.30 %24 hours; ASTM D570
Linear Mold Shrinkage 0.0020 - 0.0060 cm/cm0.0020 - 0.0060 in/inASTM D955
Melt Index of Compound 1.1 g/10 min
@Load 3.80 kg,
Temperature 230 °C		1.1 g/10 min
@Load 8.38 lb,
Temperature 446 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 9898ASTM D785
Tensile Strength at Break 75.0 MPa10900 psiASTM D638
Elongation at Break 20 %20 %ASTM D638
Flexural Strength 142 MPa20600 psiASTM D790
Flexural Modulus 3.321 GPa481.7 ksiASTM D790
Izod Impact, Notched 0.147 J/cm0.275 ft-lb/inASTM D256
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cmASTM D257
Dielectric Constant 4.0
@Frequency 60 Hz		4.0
@Frequency 60 Hz		ASTM D150
Dielectric Strength 20.0 kV/mm508 kV/in4kV/s; ASTM D149
Dissipation Factor 0.050
@Frequency 60 Hz		0.050
@Frequency 60 Hz		ASTM D150
 
Thermal PropertiesMetricEnglishComments
CTE, linear 60.0 µm/m-°C
@Temperature 20.0 °C		33.3 µin/in-°F
@Temperature 68.0 °F		ASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 103 °C217 °FASTM D648
Vicat Softening Point 113 °C235 °F1 kg; ASTM D1525
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.491.49ASTM D542
Haze 0.50 %
@Thickness 3.20 mm		0.50 %
@Thickness 0.126 in		ASTM D1003
Transmission, Visible 93 %
@Thickness 3.20 mm		93 %
@Thickness 0.126 in		ASTM D1003
 
Processing PropertiesMetricEnglishComments
Processing Temperature 240 - 270 °C464 - 518 °FInjection molding cylinder temperature
Mold Temperature 70.0 - 90.0 °C158 - 194 °F
Drying Temperature 80.0 - 90.0 °C176 - 194 °F
Dry Time 4 - 6 hour4 - 6 hour
Injection Pressure 78.45 - 147.1 MPa11380 - 21340 psi
Annealing Temperature 80.0 - 90.0 °C176 - 194 °F3-5 hours

**
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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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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PLGCHEM244 / 51065

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