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Elmet Technologies

Park Aerospace Nelcote® E-722 Epoxy Prepreg, 285 Kevlar® Reinforced
Categories: Polymer; Thermoset; Epoxy

Material Notes: Nelcote® E-722 is a modified 350°F cure epoxy system with excellent processing characteristics for vacuum bag, press, and autoclave molding.

Key Features and Benefits:

  • Epoxy resin system optimized for use with woven aramid reinforcements
  • Meets requirements of MIL-R-9300B, Type 1
  • Long out-time for easy processing

Applications/Qualifications:

  • Military Helicopters
  • Engine Nacelles
  • Work Platforms
  • Doors
  • Air Frames

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 <= 3.0 %
@Temperature 135 °C
<= 3.0 %
@Temperature 275 °F
8 min
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield  524 MPa
@Temperature 87.8 °C
76000 psi
@Temperature 190 °F
0° Direction, Wet (2hr water boil immersion); ASTM D638 Type 1
 545 MPa
@Temperature 93.3 °C
79000 psi
@Temperature 200 °F
0° Direction, Dry; ASTM D638 Type 1
 558 MPa
@Temperature 23.9 °C
81000 psi
@Temperature 75.0 °F
0° Direction, Dry; ASTM D638 Type 1
 558 MPa
@Temperature 87.8 °C
81000 psi
@Temperature 190 °F
0° Direction, Dry; ASTM D638 Type 1
Tensile Modulus  26.2 GPa
@Temperature 93.3 °C
3800 ksi
@Temperature 200 °F
0° Direction, Dry; ASTM D638 Type 1
 26.9 GPa
@Temperature 87.8 °C
3900 ksi
@Temperature 190 °F
0° Direction, Wet (2hr water boil immersion); ASTM D638 Type 1
 27.6 GPa
@Temperature 87.8 °C
4000 ksi
@Temperature 190 °F
0° Direction, Dry; ASTM D638 Type 1
 30.3 GPa
@Temperature 23.9 °C
4400 ksi
@Temperature 75.0 °F
0° Direction, Dry; ASTM D638 Type 1
Flexural Strength  269 MPa
@Temperature 87.8 °C
39000 psi
@Temperature 190 °F
Wet (2hr water boil immersion); ASTM D790
 276 MPa
@Temperature 93.3 °C
40000 psi
@Temperature 200 °F
Dry; ASTM D790
 296 MPa
@Temperature 87.8 °C
43000 psi
@Temperature 190 °F
Dry; ASTM D790
 345 MPa
@Temperature 23.9 °C
50000 psi
@Temperature 75.0 °F
Dry; ASTM D790
Flexural Modulus  22.8 GPa
@Temperature 93.3 °C
3300 ksi
@Temperature 200 °F
Dry; ASTM D790
 23.4 GPa
@Temperature 87.8 °C
3400 ksi
@Temperature 190 °F
Dry; ASTM D790
 24.8 GPa
@Temperature 87.8 °C
3600 ksi
@Temperature 190 °F
Wet (2hr water boil immersion); ASTM D790
 26.2 GPa
@Temperature 23.9 °C
3800 ksi
@Temperature 75.0 °F
Dry; ASTM D790
Compressive Strength  124 MPa
@Temperature 87.8 °C
18000 psi
@Temperature 190 °F
Wet (2hr water boil immersion); ASTM D695
 152 MPa
@Temperature 87.8 °C
22000 psi
@Temperature 190 °F
Dry; ASTM D695
 152 MPa
@Temperature 93.3 °C
22000 psi
@Temperature 200 °F
Dry; ASTM D695
 200 MPa
@Temperature 23.9 °C
29000 psi
@Temperature 75.0 °F
Dry; ASTM D695
Compressive Modulus  20.7 GPa
@Temperature 87.8 °C
3000 ksi
@Temperature 190 °F
Wet (2hr water boil immersion); ASTM D695
 21.4 GPa
@Temperature 87.8 °C
3100 ksi
@Temperature 190 °F
Dry; ASTM D695
 22.1 GPa
@Temperature 93.3 °C
3200 ksi
@Temperature 200 °F
Dry; ASTM D695
 22.8 GPa
@Temperature 23.9 °C
3300 ksi
@Temperature 75.0 °F
Dry; ASTM D695
Shear Strength  29.6 MPa
@Temperature 87.8 °C
4300 psi
@Temperature 190 °F
Short-Beam, Wet (2hr water boil immersion); ASTM D2344
 31.7 MPa
@Temperature 93.3 °C
4600 psi
@Temperature 200 °F
Short-Beam, Dry; ASTM D2344
 37.9 MPa
@Temperature 87.8 °C
5500 psi
@Temperature 190 °F
Short-Beam, Dry; ASTM D2344
 38.6 MPa
@Temperature 23.9 °C
5600 psi
@Temperature 75.0 °F
Short-Beam, Dry; ASTM D2344
 
Processing PropertiesMetricEnglishComments
Gel Time 1.00 - 4.00 min1.00 - 4.00 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
12.0 Month
@Temperature 0.000 °F
 
Descriptive Properties
Prepreg Resin Content (%)52-58
Resin Flow (%)15-35325°F, 15psi

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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PPARK010 / 89282

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