Sumitomo Epoxy E 16521A

Category: Epoxy , Epoxy; Epoxide
Manufacturer: Sumitomo Bakelite North America, Inc.
Trademark: Sumitomo Epoxy
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: Sm4q68_Sumitomo-Epoxy-E-16521A.pdf
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E-16521A is an encapsulation grade epoxy molding compound suitable for electrical applications such as coils.
General Information
Uses
  • Electrical/Electronic Applications
Appearance
  • Black
Forms
  • Granules
Processing Method
  • Compression Molding
  • Encapsulating
  • Resin Transfer Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.60g/cm³ASTM D792
Apparent Density 0.80g/cm³ASTM D1895
Molding Shrinkage - Flow (Compression Molded)0.50 to 0.70%ASTM D955
Water Absorption - 48 hr (50°C)0.25%ASTM D570
MechanicalNominal ValueUnitTest Method
Tensile Strength (Break, Compression Molded)62.0MPaASTM D638
Flexural Modulus (Compression Molded)700MPaASTM D790
Flexural Strength (Break)104MPaASTM D790
Compressive Strength 172MPaASTM D695
ImpactNominal ValueUnitTest Method
Notched Izod Impact (Compression Molded)19J/mASTM D256
ThermalNominal ValueUnitTest Method
Deflection Temperature Under Load (1.8 MPa, Annealed, Compression Molded)122°CASTM D648
CLTE - Flow 4.0E-5cm/cm/°CASTM E831
ElectricalNominal ValueUnitTest Method
Dielectric Strength 1ASTM D149
    -- 217kV/mm
    -- 314kV/mm
Dielectric Constant 4(1 MHz)4.40ASTM D2520
Dissipation Factor 5(1 MHz)0.015ASTM D150
Arc Resistance 120secASTM D495
Note Message
1 .Dry, 60 Hz
2 .Method A (Short-Time)
3 .Method B (Step-by-Step)
4 .Wet
5 .Wet
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