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Elmet Technologies

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Park Aerospace Nelcote® E-752 Epoxy Prepreg, 3K PW G30-500 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
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Physical PropertiesOriginal ValueComments
Volatiles <= 1.0 %
@Temperature 135 °C
8 min
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 350 psiMean Value, Flatwise, Core Failure, 39-42% RC; ASTM C297
 
Thermal PropertiesOriginal ValueComments
Glass Transition Temp, Tg 170 °CWet; DMA
 190 °CDry; DMA
 
Processing PropertiesOriginal ValueComments
Gel Time 5.00 - 12.0 min
Shelf Life 12.0 Month
@Temperature -17.8 °C
 
Descriptive Properties
Climbing Drum Peel (in-lb/3in)4.6ASTM D1781; Mean Value, 39-42% RC
Fabric Area Weight (g/m²)193
Prepreg Resin Content (%)32-40
Resin Flow (%)6-20275°F, 50psi

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PPARK014 / 89286

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