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Ensinger PEI

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Park Aerospace Nelcote® E-720 Epoxy Prepreg, 581 Quartz Reinforced
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® E-720 is a modified epoxy resin system designed to retain excellent mechanical properties after extended exposure to high temperature. E-720 has a proven history in many demanding aerospace applications.

Key Features and Benefits:

  • Excellent retention of mechanical properties after long-term high temperature exposure
  • Long out-time for easy processing
  • Good electrical properties

Applications/Qualifications:

  • Secondary Aircraft Structures
  • Radomes
  • Nacelles
  • Inlet Ducts
  • Fairings

Information provided by Park Electrochemical Corp.

Key Words: EP
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Volatiles <= 2.0 %
@Temperature 135 °C
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 60000 psi
@Temperature 216 °C
0° Direction, Dry; ASTM D638
 90000 psi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638
Flexural Strength 40.0 ksi
@Temperature 216 °C
Dry; ASTM D790
 90.0 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Flexural Modulus 2000 ksi
@Temperature 216 °C
Dry; ASTM D790
 3400 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Compressive Strength 30.0 ksi
@Temperature 216 °C
Dry; ASTM D695
 50.0 ksi
@Temperature 23.9 °C
Dry; ASTM D695
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.3 - 3.6
Dissipation Factor 0.012 - 0.014
 
Thermal PropertiesOriginal ValueComments
Glass Transition Temp, Tg 180 °CLaminate; standard cure
 230 °CLaminate; post cure
 
Processing PropertiesOriginal ValueComments
Gel Time 1.00 - 2.00 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
 
Descriptive Properties
Fabric Area Weight (g/m²)292
Prepreg Resin Content (%)33-37
Resin Flow (%)10-24325°F, 50psi

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 go back to viewing the property data in MatWeb's normal format.

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