CONATHANE® EN-21

Category: PUR, Unspecified , Polyurethane
Manufacturer: Cytec Industries Inc.
Trademark: CONATHANE®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: Nz3qTF_CONATHANE-EN-21.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
CONATHANE EN-21 is a two-component, liquid, low viscosity, low toxicity, room temperature curing polyurethane resin system. This system was formulated specifically for the potting, casting, embedding, and encapsulation of electronic circuits, components, and power devices. It is UL 94 HB certified.

CONATHANE EN-21 is an easy-to-use, non-TDI, non MbOCA system. It can be hand mixed or machine dispensed and cured at room or elevated temperatures. CONATHANE EN-21 cures to yield an 80 Shore A elastomer and has the following outstanding characteristics:

  • Excellent Electrical Properties
  • Low Toxicity
  • Low Viscosity
  • Low Exotherm and Low Shrinkage
  • Easy Handling
  • Low Stress Build-up on Embedded Components
  • Reversion Resistance
  • Excellent Moisture Resistance

CONATHANE EN-21 is ideal for use in potting transformers, coils, reed and mercury switches, inductors, solid state ignition systems, voltage regulators, ballasts, micro-circuits, rectifiers and printed circuit assemblies.
General Information
Features
  • Good Electrical Properties
  • Good Thermal Shock Resistance
  • Hydrolytically Stable
  • Low Toxicity
  • Low Viscosity
  • Moisture Resistant
Uses
  • Electrical Parts
  • Electrical/Electronic Applications
Agency Ratings
  • MIL I-16923E
Appearance
  • Clear Amber
Forms
  • Liquid
Processing Method
  • Casting
  • Encapsulating
  • Potting
PhysicalNominal ValueUnit
Specific Gravity
    -- 10.958g/cm³
    -- 21.07g/cm³
    -- 31.14g/cm³
Water Absorption (25°C, 24 hr)0.070%
Viscosity
    Hardener : 25°C 800mPa·s
    Resin : 25°C 6000mPa·s
ThermosetNominal ValueUnit
Gel Time
    25°C 41.5hr
    60°C 0.3hr
Additional InformationNominal ValueUnit
Peak Exotherm 69°C
Cured PropertiesNominal ValueUnit
Linear Shrinkage 1.4%
HardnessNominal ValueUnit
Durometer Hardness (Shore A)80
ElastomersNominal ValueUnit
Tensile Strength (Yield)13.8MPa
Tensile Elongation (Break)160%
Tear Strength 20.8kN/m
Compression Set 510%
ThermalNominal ValueUnit
CLTE - Flow 3.8E-4cm/cm/°C
Thermal Conductivity 0.30W/m/K
ElectricalNominal ValueUnitTest Method
Surface Resistivity > 1.0E+15ohms
Volume Resistivity 7.2E+14ohms·cm
Dielectric Strength (1.59 mm)26kV/mm
Dielectric Constant (1 kHz)3.40
Dissipation Factor (1 kHz)0.017
Insulation Resistance > 2.5E+13ohms
FlammabilityNominal ValueUnitTest Method
Flame Rating HBUL 94
ThermosetNominal ValueUnit
Thermoset Components
    Hardener Mix Ratio by Weight: 120
    Resin Mix Ratio by Weight: 100
Pot Life
    25°C 640min
    60°C 8.0min
Thermoset Mix Viscosity
    25°C 2000cP
    60°C 320cP
Demold Time
    25°C 10000min
    80°C 240min
Note Message
1 .Hardener
2 .Mixed
3 .Resin
4 .250 gms
5 .Method B
6 .250 gms
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