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Chemically Resistant adhesives

Epoxies, Etc 50-2369 FR Flame Retardant Thermally Conductive Polyurethane
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: Description: The 50-2369FR Potting and Encapsulating Compound has been formulated to meet the stringent non-burning requirements of UL94 V-0. 50-2369 FR Urethane is listed with Underwriter’s Laboratory for passing UL94 V-0. This system offers excellent heat transfer, low exotherm, and excellent electrical properties. This system is a good choice for potting applications containing surface mount components or any application requiring low stress, thermal conductivity and flame retardancy. 50-2369 FR is suitable for outdoor use.

Features:

  • Low viscosity
  • Low stress on sensitive components
  • Excellent electrical insulation
  • Excellent water resistance
  • Low shrinkage
  • Thermal shock resistance
  • Thermally conductive
  • Flame retardant (UL 94 V-0 Listed)

Information provided by Epoxies, Etc

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.21 g/cc1.21 g/ccIsocyanate
 1.57 g/cc1.57 g/ccPolyol
Water Absorption  0.074 %
@Time 86400 sec
0.074 %
@Time 24.0 hour
 0.18 %
@Time 605000 sec
0.18 %
@Time 168 hour
Viscosity 150 cP150 cPIsocyanate
 15000 cP15000 cPPolyol
Storage Temperature 18.0 - 29.0 °C64.4 - 84.2 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 7575
Tensile Strength 24.1 MPa3500 psi
Elongation at Break 20 %20 %
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.10e+14 ohm-cm2.10e+14 ohm-cm
Surface Resistance 6.00e+17 ohm6.00e+17 ohm
Dielectric Constant 4.3
@Frequency 100 Hz
4.3
@Frequency 100 Hz
Dielectric Strength 21.3 kV/mm540 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 162 µm/m-°C90.0 µin/in-°F
Thermal Conductivity 1.15 W/m-K7.98 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 135 °C275 °F
Minimum Service Temperature, Air -65.0 °C-85.0 °F
Shrinkage 0.20 %0.20 %
 
Processing PropertiesMetricEnglishComments
Cure Time  30.0 - 45.0 min
@Temperature 60.0 °C
0.500 - 0.750 hour
@Temperature 140 °F
 1440 min
@Temperature 25.0 °C
24.0 hour
@Temperature 77.0 °F
Shelf Life 12.0 Month12.0 Month
 
Descriptive Properties
ColorDark Gray

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PFEPOX046 / 316723

Chemically Resistant adhesives

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