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Elmet Technologies

Park Aerospace Nelcote® E-765 Epoxy Prepreg, T300 3K PW Reinforced
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® E-765 is a tough 250°F cure prepreg system designed to replace 350°F cure systems in aircraft structural applications. FAA-approved Design Allowable Databases are available upon request.

Key Features and Benefits:

  • Designed to replace first generation 350°F (176°C) cure systems.
  • Wide cure temperature process window of 250°F to 350°F
  • Exhibits very low void content, i.e., <2% after vacuum cure.
  • Superior fiber property translation.
  • 180°F Wet service temperature after ~250°F cure
  • Good tack and drape characteristics for 3 weeks at room temperature

Applications/Qualifications:

  • Primary Aircraft Structures
    • Fuselage
    • Wing
    • Control Surfaces
  • Secondary Aircraft Structures
    • Aircraft Frames
    • Doors
    • Shelves
    • Bulkheads

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 %<= 1.5 %
Thickness 203 microns8.00 milcured, per ply
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 7.150 MPa1037 psiFlatwise (sandwich); ASTM C297
 621 MPa
@Temperature 21.1 °C
90000 psi
@Temperature 70.0 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
 641 MPa
@Temperature 82.2 °C
93000 psi
@Temperature 180 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
 641 MPa
@Temperature -53.9 °C
93000 psi
@Temperature -65.0 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
 662 MPa
@Temperature 82.2 °C
96000 psi
@Temperature 180 °F
0° Direction, Wet; Vacuum/Oven Cured; ASTM D3039-95
Tensile Modulus  54.5 GPa
@Temperature 82.2 °C
7900 ksi
@Temperature 180 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
 55.2 GPa
@Temperature 82.2 °C
8000 ksi
@Temperature 180 °F
0° Direction, Wet; Vacuum/Oven Cured; ASTM D3039-95
 56.5 GPa
@Temperature 21.1 °C
8200 ksi
@Temperature 70.0 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
 58.6 GPa
@Temperature -53.9 °C
8500 ksi
@Temperature -65.0 °F
0° Direction, Dry; Vacuum/Oven Cured; ASTM D3039-95
Compressive Strength  393 MPa
@Temperature 82.2 °C
57000 psi
@Temperature 180 °F
Wet; Vacuum/Oven Cured; SACMA 1-94
 531 MPa
@Temperature 82.2 °C
77000 psi
@Temperature 180 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
 662 MPa
@Temperature 21.1 °C
96000 psi
@Temperature 70.0 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
 752 MPa
@Temperature -53.9 °C
109000 psi
@Temperature -65.0 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
Compressive Modulus  51.7 GPa
@Temperature 82.2 °C
7500 ksi
@Temperature 180 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
 51.7 GPa
@Temperature 82.2 °C
7500 ksi
@Temperature 180 °F
Wet; Vacuum/Oven Cured; SACMA 1-94
 53.1 GPa
@Temperature 21.1 °C
7700 ksi
@Temperature 70.0 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
 53.8 GPa
@Temperature -53.9 °C
7800 ksi
@Temperature -65.0 °F
Dry; Vacuum/Oven Cured; SACMA 1-94
Shear Strength  35.2 MPa
@Temperature 82.2 °C
5100 psi
@Temperature 180 °F
Short-Beam, Wet; Vacuum/Oven Cured; ASTM D2344
 57.9 MPa
@Temperature 82.2 °C
8400 psi
@Temperature 180 °F
Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
 71.7 MPa
@Temperature 21.1 °C
10400 psi
@Temperature 70.0 °F
Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
 74.5 MPa
@Temperature -53.9 °C
10800 psi
@Temperature -65.0 °F
Short-Beam, Dry; Vacuum/Oven Cured; ASTM D2344
 84.1 MPa
@Temperature 82.2 °C
12200 psi
@Temperature 180 °F
Beam, V-Notched; Wet; Vacuum/Oven Cured; ASTM D5379-93
 98.6 MPa
@Temperature 82.2 °C
14300 psi
@Temperature 180 °F
Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
 130 MPa
@Temperature 21.1 °C
18900 psi
@Temperature 70.0 °F
Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
 145 MPa
@Temperature -53.9 °C
21100 psi
@Temperature -65.0 °F
Beam, V-Notched; Dry; Vacuum/Oven Cured; ASTM D5379-93
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg 165 °C329 °FDry; DMA
 
Processing PropertiesMetricEnglishComments
Gel Time 5.00 min
@Temperature 135 °C
5.00 min
@Temperature 275 °F
Shelf Life  6.00 Month
@Temperature -17.8 °C
6.00 Month
@Temperature 0.000 °F
 6.00 Month
@Temperature -17.8 °C
6.00 Month
@Temperature 0.000 °F
 
Descriptive Properties
Climbing Drum Peel (in-lb/3in)4.3ASTM D1781; Bag Side
 4.3ASTM D1781; Tool Side
Fabric Area Weight (g/m²)193
Prepreg Resin Content (%)35-41
Resin Flow (%)9-21275°F, 15psi
TackMedium

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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PPARK031 / 89303

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