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Rulon Bearings

Cosmic Plastics E484 Glass Filled Epoxy Molding Compound, Electrical Grade  (discontinued **)
Categories: Polymer; Thermoset; Epoxy; Epoxy, Molded, Glass Fiber Filler; Filled/Reinforced Thermoset

Material Notes:

Data provided by the manufacturer.

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Physical PropertiesMetricEnglishComments
Density 1.95 g/cc0.0704 lb/in³
Apparent Bulk Density 0.780 g/cc0.0282 lb/in³
Water Absorption 0.20 %0.20 %48 hrs, 50°C
Linear Mold Shrinkage 0.0010 - 0.0040 cm/cm0.0010 - 0.0040 in/intypical.
 
Mechanical PropertiesMetricEnglishComments
Hardness, Barcol 7070
Tensile Strength, Ultimate 97.0 MPa14100 psi
Flexural Strength 131 MPa19000 psi
Flexural Modulus 18.0 GPa2610 ksi
Compressive Strength 207 MPa30000 psi
Izod Impact, Notched 0.320 J/cm0.599 ft-lb/in
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+15 ohm-cm1.00e+15 ohm-cm
Surface Resistance 1.00e+15 ohm1.00e+15 ohm
Dielectric Constant  4.7
@Frequency 1e+6 Hz
4.7
@Frequency 1e+6 Hz
Wet
 5.4
@Frequency 1000 Hz
5.4
@Frequency 1000 Hz
Wet
Dielectric Strength 14.0 kV/mm356 kV/inWet, Step by Step
Dissipation Factor  0.0080
@Frequency 1e+6 Hz
0.0080
@Frequency 1e+6 Hz
Wet
 0.011
@Frequency 1000 Hz
0.011
@Frequency 1000 Hz
Wet
Arc Resistance 186 sec186 sec
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 0.4187 W/m-K2.906 BTU-in/hr-ft²-°F
Deflection Temperature at 1.8 MPa (264 psi) >= 230 °C>= 446 °F
Flammability, UL94 V-0
@Thickness 1.60 mm
V-0
@Thickness 0.0630 in
 
Processing PropertiesMetricEnglishComments
Processing Temperature 150 - 175 °C302 - 347 °FMolding temperature

**
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PAESCT / 22952

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