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Master Bond adhesives

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LG Chemical HI835H PMMA, Impact Resistant Grade  (discontinued **)
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Impact Modified, Molded

Material Notes: Molding granule designed for greater impact strength combined with the outstanding properties of conventional acrylic materials

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 PropertiesOriginal ValueComments
Specific Gravity 1.17 g/ccASTM D792
Water Absorption 0.40 %24 hours; ASTM D570
Linear Mold Shrinkage 0.0040 - 0.0080 cm/cmASTM D955
Melt Index of Compound 1.8 g/10 min
@Load 3.80 kg,
Temperature 230 °C
ASTM D1238
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 47ASTM D785
Tensile Strength at Break 40.0 MPaASTM D638
Elongation at Break 90 %ASTM D638
Flexural Strength 72.0 MPaASTM D790
Flexural Modulus 1.824 GPaASTM D790
Izod Impact, Notched 53.0 J/mASTM D256
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cmASTM D257
Dielectric Constant 3.5
@Frequency 60 Hz
ASTM D150
Dielectric Strength 15.0 kV/mm4kV/s; ASTM D149
Dissipation Factor 0.040
@Frequency 60 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 60.0 µm/m-°C
@Temperature 20.0 °C
ASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 87.0 °CASTM D648
Vicat Softening Point 97.0 °C1 kg; ASTM D1525
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.49ASTM D542
Haze 1.0 %
@Thickness 3.20 mm
ASTM D1003
Transmission, Visible 91 %
@Thickness 3.20 mm
ASTM D1003
 
Processing PropertiesOriginal ValueComments
Processing Temperature 210 - 250 °CInjection molding cylinder temperature
Mold Temperature 60.0 - 70.0 °C
Drying Temperature 60.0 - 70.0 °C
Dry Time 4 - 6 hour
Injection Pressure 49.0 - 108 MPa
Annealing Temperature 60.0 - 70.0 °C3-5 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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