Epic Urethane S7351

Category: PUR, Unspecified , Polyurethane
Manufacturer: Epic Resins
Trademark: Epic Urethane
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: CdQVA5_Epic-Urethane-S7351.pdf
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Message
Epic S7351 is a two component, room temperature cure, polybutadiene based polyurethane. S7351 was specifically formulated for potting electronic marine modules (EMM) and is also an excellent candidate for potting electronic control modules (ECM). Due to its low hardness and flexibility, S7351 will not exert stress on delicate surface mounted devices (SMD) on printed circuit boards (PCB) when exposed to extreme thermal cycling typical of marine and automotive electronics applications. S7351 is an excellent alternative to rigid systems that cause failures by not allowing expansion and contraction of delicate components. S7351 provides excellent high temperature properties up to 125C and good chemical resistance.
General Information
Features
  • Good Chemical Resistance
  • Good Flexibility
  • Low Hardness
Uses
  • Automotive Applications
  • Electrical/Electronic Applications
  • Electronic Insulation
  • Marine Applications
RoHS Compliance
  • RoHS Compliant
Processing Method
  • Encapsulating
  • Potting
PhysicalNominal ValueUnitTest Method
Specific Gravity 0.978 to 0.998g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness (Shore A, 25°C)20 to 25ASTM D2240
ThermalNominal ValueUnitTest Method
Glass Transition Temperature < -35.0°CASTM E1356
CLTE - Flow 3.9E-4 to 4.1E-4cm/cm/°CASTM D696
ElectricalNominal ValueUnitTest Method
Volume Resistivity 1.5E+12 to 2.3E+12ohms·cmASTM D257
Dielectric Strength (2.79 mm)16 to 17kV/mmASTM D149
Dielectric Constant (100 kHz)3.70 to 4.10ASTM D2520
Dissipation Factor (100 kHz)0.030 to 0.040ASTM D150
ThermosetNominal ValueUnitTest Method
Thermoset Components
    Part A Mix Ratio by Volume: 4.0 Mix Ratio by Weight: 100
    Part B Mix Ratio by Volume: 1.0 Mix Ratio by Weight: 28
Pot Life 1(25°C)8.0 to 14min
Thermoset Mix Viscosity (25°C)700 to 1000cPASTM D2393
Note Message
1 .128 Gram Mass
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