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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 PropertiesMetricEnglishComments
Volatiles <= 1.5 %
@Temperature 135 °C
<= 1.5 %
@Temperature 275 °F
8 min
Thickness 254 microns10.0 milPer Ply
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield  496 MPa
@Temperature 71.1 °C
72000 psi
@Temperature 160 °F
0° Direction, Dry; ASTM D638
 496 MPa
@Temperature 71.1 °C
72000 psi
@Temperature 160 °F
0° Direction, Wet; ASTM D638
 593 MPa
@Temperature 21.1 °C
86000 psi
@Temperature 70.0 °F
0° Direction, Wet; ASTM D638
 593 MPa
@Temperature 21.1 °C
86000 psi
@Temperature 70.0 °F
0° Direction, Dry; ASTM D638
 745 MPa
@Temperature -53.9 °C
108000 psi
@Temperature -65.0 °F
0° Direction, Dry; ASTM D638
Tensile Modulus  20.0 GPa
@Temperature 71.1 °C
2900 ksi
@Temperature 160 °F
0° Direction, Dry; ASTM D638
 20.0 GPa
@Temperature 21.1 °C
2900 ksi
@Temperature 70.0 °F
0° Direction, Wet; ASTM D638
 20.7 GPa
@Temperature -53.9 °C
3000 ksi
@Temperature -65.0 °F
0° Direction, Dry; ASTM D638
 24.8 GPa
@Temperature 21.1 °C
3600 ksi
@Temperature 70.0 °F
0° Direction, Dry; ASTM D638
Flexural Strength  214 MPa
@Temperature 71.1 °C
31000 psi
@Temperature 160 °F
Wet; ASTM D790
 483 MPa
@Temperature 71.1 °C
70000 psi
@Temperature 160 °F
Dry; ASTM D790
 634 MPa
@Temperature 21.1 °C
92000 psi
@Temperature 70.0 °F
Dry; ASTM D790
 676 MPa
@Temperature -53.9 °C
98000 psi
@Temperature -65.0 °F
Dry; ASTM D790
Flexural Modulus  15.2 GPa
@Temperature 71.1 °C
2200 ksi
@Temperature 160 °F
Wet; ASTM D790
 16.5 GPa
@Temperature 71.1 °C
2400 ksi
@Temperature 160 °F
Dry; ASTM D790
 18.6 GPa
@Temperature -53.9 °C
2700 ksi
@Temperature -65.0 °F
Dry; ASTM D790
 22.1 GPa
@Temperature 21.1 °C
3200 ksi
@Temperature 70.0 °F
Dry; ASTM D790
Compressive Strength  234 MPa
@Temperature 71.1 °C
34000 psi
@Temperature 160 °F
Wet; ASTM D695
 407 MPa
@Temperature 71.1 °C
59000 psi
@Temperature 160 °F
Dry; ASTM D695
 448 MPa
@Temperature 21.1 °C
65000 psi
@Temperature 70.0 °F
Dry; ASTM D695
 510 MPa
@Temperature -53.9 °C
74000 psi
@Temperature -65.0 °F
Dry; ASTM D695
Compressive Modulus  20.0 GPa
@Temperature 21.1 °C
2900 ksi
@Temperature 70.0 °F
Dry; ASTM D695
 20.7 GPa
@Temperature 71.1 °C
3000 ksi
@Temperature 160 °F
Wet; ASTM D695
 21.4 GPa
@Temperature 71.1 °C
3100 ksi
@Temperature 160 °F
Dry; ASTM D695
 22.8 GPa
@Temperature -53.9 °C
3300 ksi
@Temperature -65.0 °F
Dry; ASTM D695
Shear Strength  15.2 MPa
@Temperature 93.3 °C
2200 psi
@Temperature 200 °F
Short-Beam, Dry; ASTM D2344
 36.5 MPa
@Temperature 71.1 °C
5300 psi
@Temperature 160 °F
Short-Beam, Dry; ASTM D2344
 48.3 MPa
@Temperature 21.1 °C
7000 psi
@Temperature 70.0 °F
Short-Beam, Dry; ASTM D2344
 62.1 MPa
@Temperature -53.9 °C
9000 psi
@Temperature -65.0 °F
Short-Beam, Dry; ASTM D2344
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant  3.15
@Frequency 1.80e+10 Hz
3.15
@Frequency 1.80e+10 Hz
 3.3
@Frequency 9.375e+9 Hz
3.3
@Frequency 9.375e+9 Hz
Dissipation Factor  0.0080
@Frequency 1.80e+10 Hz
0.0080
@Frequency 1.80e+10 Hz
 0.0090
@Frequency 9.375e+9 Hz
0.0090
@Frequency 9.375e+9 Hz
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg 115 °C239 °FDry; DMA
 
Processing PropertiesMetricEnglishComments
Gel Time 5.80 min5.80 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
12.0 Month
@Temperature 0.000 °F
 
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 view all the property values for this datasheet as they were originally entered into MatWeb.

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PPARK022 / 89294

Specialty Compounds RTP Company

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