Park Aerospace Nelcote® E-765 Epoxy Prepreg, 6K 4HS IM7 Reinforced

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Park Aerospace Nelcote® E-765 Epoxy Prepreg, 6K 4HS IM7 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
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Mechanical Properties	Original Value	Comments

Tensile Strength, Yield	131000 psi @Temperature 21.1 °C	0° Direction, Dry; Autoclave Cured; ASTM D3039-95
Tensile Modulus	11000 ksi @Temperature 21.1 °C	0° Direction, Dry; Autoclave Cured; ASTM D3039-95
Compressive Strength	77.0 ksi @Temperature 82.2 °C	Wet; Autoclave Cured; SACMA 1-94
	88.0 ksi @Temperature 82.2 °C	Dry; Autoclave Cured; SACMA 1-94
	110 ksi @Temperature 21.1 °C	Dry; Autoclave Cured; SACMA 1-94
Compressive Modulus	9000 ksi @Temperature 82.2 °C	Dry; Autoclave Cured; SACMA 1-94
	9500 ksi @Temperature 21.1 °C	Dry; Autoclave Cured; SACMA 1-94
	11100 ksi @Temperature 82.2 °C	Wet; Autoclave Cured; SACMA 1-94
Shear Strength	6.90 ksi @Temperature 82.2 °C	Beam, V-Notched; Wet; Autoclave Cured; ASTM D5379-93
	7.30 ksi @Temperature 82.2 °C	Short-Beam, Wet; Autoclave Cured; ASTM D2344
	7.60 ksi @Temperature 82.2 °C	Beam, V-Notched; Dry; Autoclave Cured; ASTM D5379-93
	9.00 ksi @Temperature 21.1 °C	Beam, V-Notched; Dry; Autoclave Cured; ASTM D5379-93
	9.30 ksi @Temperature 82.2 °C	Short-Beam, Dry; Autoclave Cured; ASTM D2344
	10.3 ksi @Temperature 21.1 °C	Short-Beam, Dry; Autoclave Cured; ASTM D2344

Processing Properties	Original Value	Comments
Shelf Life	6.00 Month @Temperature -17.8 °C

Descriptive Properties
Fabric Area Weight (g/m²)	203

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