Cosmic Epoxy E484

Category: Epoxy , Epoxy; Epoxide
Manufacturer: Cosmic Plastics, Inc.
Trademark: Cosmic Epoxy
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: 29yHEh_Cosmic-Epoxy-E484.pdf
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DESCRIPTION
Cosmic E484 is a mineral filled, glass reinforced, electrical grade epoxy molding compound which is supplied in a granular form.

FEATURES
It has excellent mechanical strength and electrical properties, especially at high temperatures. It has passed NASA out-gassing tests.

APPLICATIONS
Used in electrical hardware applications such as underwater connectors and other insulation applications.
General Information
Filler / Reinforcement
  • Glass Fiber
  • Mineral
Features
  • Good Electrical Properties
  • High Strength
Uses
  • Connectors
  • Electrical Parts
  • Insulation
Agency Ratings
  • ASTM D 5948, Type GEI-5
  • MIL M-14, Type GEI-5
Forms
  • Granules
PhysicalNominal ValueUnit
Specific Gravity 1.95g/cm³
Bulk Factor 2.0 to 5.0
Molding Shrinkage - Flow 0.20 to 0.40%
Water Absorption 1(Equilibrium, 50°C)0.25%
HardnessNominal ValueUnit
Barcol Hardness 65 to 75
MechanicalNominal ValueUnit
Tensile Strength 96.5MPa
Flexural Modulus 17900MPa
Flexural Strength 131MPa
Compressive Strength 207MPa
ImpactNominal ValueUnit
Notched Izod Impact 32J/m
ThermalNominal ValueUnit
Glass Transition Temperature 165°C
CLTE - Flow
    -- 22.9E-5cm/cm/°C
    -- 39.2E-5cm/cm/°C
Thermal Conductivity 0.42W/m/K
Heat Distortion 260°C
ElectricalNominal ValueUnitTest Method
Dielectric Breakdown - Wet 60000V
Surface Resistivity > 1.0E+15ohms
Dielectric Strength 4(Wet)14kV/mm
Dielectric Constant 5
    1 kHz 5.40
    1 MHz 4.70
Dissipation Factor 6
    1 kHz 0.011
    1 MHz 8.0E-3
Arc Resistance 186sec
FlammabilityNominal ValueUnitTest Method
Flame Rating (1.59 mm)V-0UL 94
InjectionNominal ValueUnit
Processing (Melt) Temp 150 to 180°C
Injection Pressure 3.45 to 55.2MPa
Note Message
1 .48 hrs
2 .Alpha 1
3 .Alpha 2
4 .Method B (Step-by-Step)
5 .Wet
6 .Wet
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