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Cosmic Epoxy E484

1 of 25 products in this brand
Cosmic Epoxy E484 is a mineral-filled, glass-reinforced, electrical-grade epoxy molding compound supplied in granular form. It boasts excellent mechanical strength and electrical properties, particularly at high temperatures, and has successfully passed NASA outgassing tests. This compound finds applications in electrical hardware, including underwater connectors and various insulation needs.

Polymer Name: Epoxy Resins & Compounds

End Uses: Connectors, Electrical Insulation

Volume Resistivity: 100000000.0 - 100000000.0 Ohm-m

Flexural Strength: 130.91 - 130.91 MPa

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Identification & Functionality

Fillers Included
Plastics & Elastomers Functions
Technologies

Features & Benefits

Key Features

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

Applications & Uses

Plastics & Elastomers End Uses
Product Applications

Used in electrical hardware applications such as underwater connectors and other insulation applications.

Properties

Flame Rating
Physical Form
Flame Rating
UL 94 V0
Mechanical Properties
ValueUnitsTest Method / Conditions
Flexural Strength19000psi-
Flexural Modulus2.6 x 10⁶psi-
Compressive Strength30000psi-
Tensile Strength14000psi-
Barcol Hardness65 - 75--
Impact Strength (Izod Notched)0.6ft-lb / inch-
Thermal Properties
ValueUnitsTest Method / Conditions
Heat Deflection Temperature260°C-
Glass Transition Temperature (Tg)165°C-
Thermal Conductivity10 x 10⁻⁴cal/sec/cm²/°C/cm-
Electrical Properties
ValueUnitsTest Method / Conditions
Arc Resistance186seconds-
Volume Resistancemin. 10¹⁰Ohm - cm-
Surface Resistance1 x 10¹⁵Ohm - cm-
Dielectric Strength (Kv Step-by-Step, Wet)350volts/mil-
Dielectric Breakdown (Step-by-Step, Wet)60Kv-
Dielectric Constant (at 1 KHz, Wet)5.4--
Dissipation Factor (at 1KHz, Wet)0.011--
Dielectric Constant (at 1 MHz, Wet)4.7--
Dissipation Factor (at 1MHz, Wet)0.008--
Test Parameter
ValueUnitsTest Method / Conditions
Linear Thermal Expansion (Alpha 1)29 x 10⁻⁶in/in/°C-
Linear Thermal Expansion (Alpha 2)92 x 10⁻⁶in/in/°C-
Moisture Properties
ValueUnitsTest Method / Conditions
Water Absorption (at 50 °C,48 hours)0.25%-
Processing Information (Molding)
ValueUnitsTest Method / Conditions
Specific Gravity1.8--
Bulk Factor2.0 - 5.0--
Molding Pressure500 - 8,000psi-
Molding Pressure35 - 562Kg/cm²-
Molding Temperature150 - 180°C-
Molding Temperature302 - 356°F-
Mold Shrinkage0.002 - 0.004In / In-

Regulatory & Compliance

Certifications & Compliance