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Ensinger PEI

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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 PropertiesOriginal ValueComments
Volatiles <= 3.0 %
@Temperature 135 °C
8 min
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 76000 psi
@Temperature 87.8 °C
0° Direction, Wet (2hr water boil immersion); ASTM D638 Type 1
 79000 psi
@Temperature 93.3 °C
0° Direction, Dry; ASTM D638 Type 1
 81000 psi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638 Type 1
 81000 psi
@Temperature 87.8 °C
0° Direction, Dry; ASTM D638 Type 1
Tensile Modulus 3800 ksi
@Temperature 93.3 °C
0° Direction, Dry; ASTM D638 Type 1
 3900 ksi
@Temperature 87.8 °C
0° Direction, Wet (2hr water boil immersion); ASTM D638 Type 1
 4000 ksi
@Temperature 87.8 °C
0° Direction, Dry; ASTM D638 Type 1
 4400 ksi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638 Type 1
Flexural Strength 39.0 ksi
@Temperature 87.8 °C
Wet (2hr water boil immersion); ASTM D790
 40.0 ksi
@Temperature 93.3 °C
Dry; ASTM D790
 43.0 ksi
@Temperature 87.8 °C
Dry; ASTM D790
 50.0 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Flexural Modulus 3300 ksi
@Temperature 93.3 °C
Dry; ASTM D790
 3400 ksi
@Temperature 87.8 °C
Dry; ASTM D790
 3600 ksi
@Temperature 87.8 °C
Wet (2hr water boil immersion); ASTM D790
 3800 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Compressive Strength 18.0 ksi
@Temperature 87.8 °C
Wet (2hr water boil immersion); ASTM D695
 22.0 ksi
@Temperature 87.8 °C
Dry; ASTM D695
 22.0 ksi
@Temperature 93.3 °C
Dry; ASTM D695
 29.0 ksi
@Temperature 23.9 °C
Dry; ASTM D695
Compressive Modulus 3000 ksi
@Temperature 87.8 °C
Wet (2hr water boil immersion); ASTM D695
 3100 ksi
@Temperature 87.8 °C
Dry; ASTM D695
 3200 ksi
@Temperature 93.3 °C
Dry; ASTM D695
 3300 ksi
@Temperature 23.9 °C
Dry; ASTM D695
Shear Strength 4.30 ksi
@Temperature 87.8 °C
Short-Beam, Wet (2hr water boil immersion); ASTM D2344
 4.60 ksi
@Temperature 93.3 °C
Short-Beam, Dry; ASTM D2344
 5.50 ksi
@Temperature 87.8 °C
Short-Beam, Dry; ASTM D2344
 5.60 ksi
@Temperature 23.9 °C
Short-Beam, Dry; ASTM D2344
 
Processing PropertiesOriginal ValueComments
Gel Time 1.00 - 4.00 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
 
Descriptive Properties
Prepreg Resin Content (%)52-58
Resin Flow (%)15-35325°F, 15psi

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