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Rulon Bearings

Chi Mei Acryrex® CM-211 PMMA
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, General Purpose, Molded
Material Notes:
    Features:
  • Good Weather Resistance
  • High Clarity
  • High Flow
  • High Gloss
  • High Heat Resistance
  • High Viscosity
    Uses:
  • Containers
  • Cosmetics
  • Household Goods
  • Knobs
RoHS Compliant

Appearance: Clear/Transparent

Forms: Pellets

Processing Method: Extrusion and Injection Molding
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
Density 0.700 g/cc0.0253 lb/in³Apparent; ASTM D1182
 1.19 g/cc0.0430 lb/in³ASTM D792
Water Absorption 0.30 %0.30 %Equilibrium; ASTM D570
Linear Mold Shrinkage, Flow 0.0020 - 0.0060 cm/cm0.0020 - 0.0060 in/inASTM D955
Melt Flow 16 g/10 min
@Load 3.80 kg,
Temperature 230 °C		16 g/10 min
@Load 8.38 lb,
Temperature 446 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 84
@Thickness 6.35 mm		84
@Thickness 0.250 in		6 mm/min; ASTM D785
Tensile Strength, Yield 63.4 MPa
@Thickness 3.18 mm		9200 psi
@Thickness 0.125 in		6 mm/min; ASTM D638
Elongation at Break 5.0 %
@Thickness 3.18 mm		5.0 %
@Thickness 0.125 in		2.8 mm/min; ASTM D638
Flexural Strength 91.0 MPa
@Thickness 6.35 mm		13200 psi
@Thickness 0.250 in		ASTM D790
Izod Impact, Notched 0.200 J/cm
@Thickness 6.35 mm		0.375 ft-lb/in
@Thickness 0.250 in		ASTM D256
Impact 2.02.0Impact Flexural Test Notched (KJ/m²)
 1818Impact Flexural Test Unnotched (KJ/m²)
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cmASTM D257
Dielectric Constant 3.73.7ASTM D150
Dielectric Strength 31.0 kV/mm787 kV/inASTM D149
Dissipation Factor 0.190.19ASTM D150
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 87.0 °C
@Thickness 6.35 mm		189 °F
@Thickness 0.250 in		ASTM D648
Vicat Softening Point 102 °C216 °F50°C/hr; ASTM D1525
Flammability, UL94 HB
@Thickness 1.59 mm		HB
@Thickness 0.0625 in		UL 94
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.491.49ASTM D542
Transmission, Visible 92 %
@Thickness 80.8 mm		92 %
@Thickness 3.18 in		ASTM D1003
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 180 - 190 °C356 - 374 °F
Middle Barrel Temperature 195 - 215 °C383 - 419 °F
Front Barrel Temperature 190 - 210 °C374 - 410 °F
Mold Temperature 30.0 - 50.0 °C86.0 - 122 °F
Drying Temperature 70.0 - 75.0 °C
@Time 14400 sec		158 - 167 °F
@Time 4.00 hour

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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