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Ensinger PEI

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Park Aerospace Nelcote® E-761 Epoxy Prepreg, 4581 Quartz
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® E-761 is a versatile self-adhesive epoxy matrix for use in aerospace and commercial application where ease of processing and cost are key considerations.

Key Features and Benefits:

  • Controlled flow for ease of processing
  • Self adhesive for honeycomb or foam sandwich laminates without the use of film adhesive
  • Flexible cure temperature 180°F to 250°F
  • Good electrical properties
  • Flame and fire retardant per FAR 25.853
  • Wet service temperatures up to 160°F

Applications/Qualifications:

  • Radomes
  • Aircraft Interiors
  • Secondary Aircraft Structures
  • Sandwich Panels
  • MRI Resonators
  • Widely specified on commercial and military aircraft programs

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 <= 1.5 %
@Temperature 135 °C
8 min
Thickness 10.0 milPer Ply
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 72000 psi
@Temperature 71.1 °C
0° Direction, Dry; ASTM D638
 72000 psi
@Temperature 71.1 °C
0° Direction, Wet; ASTM D638
 86000 psi
@Temperature 21.1 °C
0° Direction, Wet; ASTM D638
 86000 psi
@Temperature 21.1 °C
0° Direction, Dry; ASTM D638
 108000 psi
@Temperature -53.9 °C
0° Direction, Dry; ASTM D638
Tensile Modulus 2900 ksi
@Temperature 71.1 °C
0° Direction, Dry; ASTM D638
 2900 ksi
@Temperature 21.1 °C
0° Direction, Wet; ASTM D638
 3000 ksi
@Temperature -53.9 °C
0° Direction, Dry; ASTM D638
 3600 ksi
@Temperature 21.1 °C
0° Direction, Dry; ASTM D638
Flexural Strength 31.0 ksi
@Temperature 71.1 °C
Wet; ASTM D790
 70.0 ksi
@Temperature 71.1 °C
Dry; ASTM D790
 92.0 ksi
@Temperature 21.1 °C
Dry; ASTM D790
 98.0 ksi
@Temperature -53.9 °C
Dry; ASTM D790
Flexural Modulus 2200 ksi
@Temperature 71.1 °C
Wet; ASTM D790
 2400 ksi
@Temperature 71.1 °C
Dry; ASTM D790
 2700 ksi
@Temperature -53.9 °C
Dry; ASTM D790
 3200 ksi
@Temperature 21.1 °C
Dry; ASTM D790
Compressive Strength 34.0 ksi
@Temperature 71.1 °C
Wet; ASTM D695
 59.0 ksi
@Temperature 71.1 °C
Dry; ASTM D695
 65.0 ksi
@Temperature 21.1 °C
Dry; ASTM D695
 74.0 ksi
@Temperature -53.9 °C
Dry; ASTM D695
Compressive Modulus 2900 ksi
@Temperature 21.1 °C
Dry; ASTM D695
 3000 ksi
@Temperature 71.1 °C
Wet; ASTM D695
 3100 ksi
@Temperature 71.1 °C
Dry; ASTM D695
 3300 ksi
@Temperature -53.9 °C
Dry; ASTM D695
Shear Strength 2.20 ksi
@Temperature 93.3 °C
Short-Beam, Dry; ASTM D2344
 5.30 ksi
@Temperature 71.1 °C
Short-Beam, Dry; ASTM D2344
 7.00 ksi
@Temperature 21.1 °C
Short-Beam, Dry; ASTM D2344
 9.00 ksi
@Temperature -53.9 °C
Short-Beam, Dry; ASTM D2344
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.15
@Frequency 1.80e+10 Hz
 3.3
@Frequency 9.375e+9 Hz
Dissipation Factor 0.0080
@Frequency 1.80e+10 Hz
 0.0090
@Frequency 9.375e+9 Hz
 
Thermal PropertiesOriginal ValueComments
Glass Transition Temp, Tg 115 °CDry; DMA
 
Processing PropertiesOriginal ValueComments
Gel Time 5.80 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
 
Descriptive Properties
Fabric Area Weight (g/m²)288.2
Prepreg Resin Content (%)38
Resin Flow (%)18275°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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