Park Aerospace Nelcote® E-761 Epoxy Prepreg, 3K PW Carbon Reinforced

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Park Aerospace Nelcote® E-761 Epoxy Prepreg, 3K PW Carbon Reinforced
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Nelcote® E-761 is a versatile self-adhesive epoxy matrix for use in aerospace and commercial application where ease of processing and cost are key considerations. Key Features and Benefits: Controlled flow for ease of processing Self adhesive for honeycomb or foam sandwich laminates without the use of film adhesive Flexible cure temperature 180°F to 250°F Good electrical properties Flame and fire retardant per FAR 25.853 Wet service temperatures up to 160°F Applications/Qualifications: Radomes Aircraft Interiors Secondary Aircraft Structures Sandwich Panels MRI Resonators Widely specified on commercial and military aircraft programs Information provided by Park Electrochemical Corp.
Key Words:	EP
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Physical Properties	Original Value	Comments

Volatiles	<= 2.0 % @Temperature 135 °C	8 min
Thickness	7.00 mil	Per Ply

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	79000 psi @Temperature 93.3 °C	0° Direction, Dry; ASTM D638
	82000 psi @Temperature 71.1 °C	0° Direction, Wet; ASTM D638
	86000 psi @Temperature 71.1 °C	0° Direction, Dry; ASTM D638
	90000 psi @Temperature 21.1 °C	0° Direction, Wet; ASTM D638
	94000 psi @Temperature 21.1 °C	0° Direction, Dry; ASTM D638
Tensile Modulus	8400 ksi @Temperature 71.1 °C	0° Direction, Wet; ASTM D638
	8700 ksi @Temperature 71.1 °C	0° Direction, Dry; ASTM D638
	8700 ksi @Temperature 93.3 °C	0° Direction, Dry; ASTM D638
	8700 ksi @Temperature 21.1 °C	0° Direction, Wet; ASTM D638
	8800 ksi @Temperature 21.1 °C	0° Direction, Dry; ASTM D638
Flexural Strength	71.0 ksi @Temperature 71.1 °C	Wet; ASTM D790
	79.0 ksi @Temperature 93.3 °C	Dry; ASTM D790
	84.0 ksi @Temperature 71.1 °C	Dry; ASTM D790
	100 ksi @Temperature 21.1 °C	Wet; ASTM D790
	108 ksi @Temperature 21.1 °C	Dry; ASTM D790
Flexural Modulus	6800 ksi @Temperature 71.1 °C	Wet; ASTM D790
	6800 ksi @Temperature 71.1 °C	Dry; ASTM D790
	6900 ksi @Temperature 93.3 °C	Dry; ASTM D790
	6900 ksi @Temperature 21.1 °C	Wet; ASTM D790
	7200 ksi @Temperature 21.1 °C	Dry; ASTM D790
Compressive Strength	45.0 ksi @Temperature 71.1 °C	Wet; ASTM D695
	45.0 ksi @Temperature 93.3 °C	Dry; ASTM D695
	51.0 ksi @Temperature 71.1 °C	Dry; ASTM D695
	58.0 ksi @Temperature 21.1 °C	Wet; ASTM D695
	62.0 ksi @Temperature 21.1 °C	Dry; ASTM D695
Compressive Modulus	8400 ksi @Temperature 21.1 °C	Wet; ASTM D695
	8600 ksi @Temperature 71.1 °C	Wet; ASTM D695
	8600 ksi @Temperature 93.3 °C	Dry; ASTM D695
	9000 ksi @Temperature 21.1 °C	Dry; ASTM D695
	9800 ksi @Temperature 71.1 °C	Dry; ASTM D695
Shear Strength	4.40 ksi @Temperature 71.1 °C	Short-Beam, Wet; ASTM D2344
	4.70 ksi @Temperature 93.3 °C	Short-Beam, Dry; ASTM D2344
	5.50 ksi @Temperature 71.1 °C	Short-Beam, Dry; ASTM D2344
	6.50 ksi @Temperature 21.1 °C	Short-Beam, Wet; ASTM D2344
	7.40 ksi @Temperature 21.1 °C	Short-Beam, Dry; ASTM D2344

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	115 °C	Dry; DMA

Processing Properties	Original Value	Comments
Gel Time	6.00 min
Shelf Life	12.0 Month @Temperature -17.8 °C

Descriptive Properties
Fabric Area Weight (g/m²)	192.9
Prepreg Resin Content (%)	42
Resin Flow (%)	10	275°F, 50psi

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PPARK023 / 89295

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