Cosmic Plastics E4940S Mineral Filled Epoxy Molding Compound

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Cosmic Plastics E4940S Mineral Filled Epoxy Molding Compound
Categories:	Polymer; Thermoset; Epoxy; Epoxy, Encapsulating, Glass or Mineral Filled
Material Notes:	Description: Cosmic E4940S is a mineral filled epoxy molding compound which is supplied in a granular form. Features: It has excellent dimensional stability, improved thermal cycling and exceptional moisture resistance. Standard spiral flow range is 25-35” (EMMI) at 1500C and 1000 psi. It has a hot plate gel time of 22-30 seconds at 1600C, and 18-26 seconds at 1820C. It has a shelf life of eight months when stored at 50C. Applications: It is designed for use in high-volume encapsulation of resistor networks and fiber-optic connectors requiring high quality, reliability and good moldability. Information provided by Cosmic Plastics Inc
Vendors:

Available Properties

Specific Gravity
Bulk Factor
Water Absorption
Linear Mold Shrinkage
Hardness, Barcol
Tensile Strength at Break
Flexural Strength
Flexural Modulus
Compressive Strength
Izod Impact, Notched
Volume Resistivity
Surface Resistance
Dielectric Constant, Wet
Dielectric Constant, Wet
Dielectric Strength, Wet, step by step
Dielectric Breakdown, Wet, step by step
Dissipation Factor, Wet
Dissipation Factor, Wet
Arc Resistance
CTE, linear, Alpha 1
CTE, linear, Alpha 2
Thermal Conductivity
Heat Distortion Temperature
Glass Transition Temp, Tg
Flammability, UL94
Mold Temperature

Property Data

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Manufacturer Notes:
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Category Notes
Plastic

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