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Elmet Technologies

Park Aerospace Nelcote® E-752 Epoxy Prepreg, IM7 Unitape Reinforced
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® E-752 is a toughened, 185°C cure epoxy system designed for demanding structural applications up to 130°C. E-752 offers a good balance of toughness, high service temperature and good moisture resistance, as well as excellent tack and drape. Formulated for both oven and autoclave cure, E-752 provides for easy processing with oven cure, without sacrificing mechanical properties.

Key Features and Benefits:

  • Specifically designed to allow both oven cure and autoclave cure
    • Allows oven curing without sacrificing mechanical properties
  • Service temperatures up to 130°C
  • Controlled flow for ease of processing
  • Flexible cure temperature 132°C to 185°C
    • Good mechanical properties can be achieved through oven curing at 132°C, followed by post-cure at 185°C
  • Self-adhesive grade for sandwich panel applications

Applications/Qualifications:

  • Primary and Secondary Aircraft Structures
  • Ducting
  • Fairings
  • Nacelles

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 <= 1.9 %
@Temperature 135 °C
<= 1.9 %
@Temperature 275 °F
8 min
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield  2340 MPa
@Temperature 23.9 °C
340000 psi
@Temperature 75.0 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
 2410 MPa
@Temperature 121 °C
350000 psi
@Temperature 250 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
 2450 MPa
@Temperature 121 °C
356000 psi
@Temperature 250 °F
0° Direction, Wet, 365° Autoclave Cured; ASTM D3039
Tensile Modulus  161 GPa
@Temperature 23.9 °C
23400 ksi
@Temperature 75.0 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
 167 GPa
@Temperature 121 °C
24200 ksi
@Temperature 250 °F
0° Direction, Dry, 365° Autoclave Cured; ASTM D3039
 170 GPa
@Temperature 121 °C
24600 ksi
@Temperature 250 °F
0° Direction, Wet, 365° Autoclave Cured; ASTM D3039
Compressive Strength  1020 MPa
@Temperature 121 °C
148000 psi
@Temperature 250 °F
Wet, 365° Autoclave Cured; SACMA 1R-94
 1310 MPa
@Temperature 121 °C
190000 psi
@Temperature 250 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
 1820 MPa
@Temperature 23.9 °C
264000 psi
@Temperature 75.0 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
Compressive Modulus  145 GPa
@Temperature 23.9 °C
21100 ksi
@Temperature 75.0 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
 157 GPa
@Temperature 121 °C
22800 ksi
@Temperature 250 °F
Wet, 365° Autoclave Cured; SACMA 1R-94
 188 GPa
@Temperature 121 °C
27200 ksi
@Temperature 250 °F
Dry, 365° Autoclave Cured; SACMA 1R-94
Shear Modulus 4.76 GPa
@Temperature 23.9 °C
690 ksi
@Temperature 75.0 °F
In-Plane, Dry, 365° Autoclave Cured; ASTM D3518
Shear Strength 91.0 MPa
@Temperature 23.9 °C
13200 psi
@Temperature 75.0 °F
In-Plane, Dry, 365° Autoclave Cured; ASTM D3518
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg 170 °C338 °FWet; DMA
 190 °C374 °FDry; DMA
 
Processing PropertiesMetricEnglishComments
Gel Time 5.00 - 12.0 min5.00 - 12.0 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
12.0 Month
@Temperature 0.000 °F
 
Descriptive Properties
Fabric Area Weight (g/m²)120-300
Prepreg Resin Content (%)32-38
Resin Flow (%)6-20275°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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PPARK017 / 89289

Ensinger PEI

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