Park Aerospace Nelcote® E-763 Epoxy Prepreg, 7781 E-Glass Reinforced

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Park Aerospace Nelcote® E-763 Epoxy Prepreg, 7781 E-Glass Reinforced
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Nelcote® E-763 is a modified epoxy system with a nominal 250°F cure temperature. E-763 provides a transparent resin surface on the finished part which gives finished part surfaces a cosmetic attractive finish. Key Features and Benefits: Good low pressure consolidation Excellent handling characteristics and out-time Clear surface finish for excellent cosmetic appearance on finished parts 250°F cure epoxy system Applications/Qualifications: Industrial Applications Recreational Applications Information provided by Park Electrochemical Corp.
Key Words:	EP
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Physical Properties	Original Value	Comments

Volatiles	<= 1.5 % @Temperature 135 °C	8 min

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	62000 psi @Temperature 23.9 °C	0° Direction, Dry; Oven Cure 250°F, 90 min; ASTM D638
Tensile Modulus	3700 ksi @Temperature 23.9 °C	0° Direction, Dry; Oven Cure 250°F, 90 min; ASTM D3039
Flexural Strength	86.0 ksi @Temperature 71.1 °C	Dry; Oven Cure 250°F, 90 min; ASTM D790
	96.0 ksi @Temperature 23.9 °C	Dry; Oven Cure 250°F, 90 min; ASTM D790
Flexural Modulus	3400 ksi @Temperature 23.9 °C	Dry; Oven Cure 250°F, 90 min; ASTM D790
	3400 ksi @Temperature 71.1 °C	Dry; Oven Cure 250°F, 90 min; ASTM D790
Compressive Strength	60.0 ksi @Temperature 71.1 °C	Dry; Oven Cure 250°F, 90 min; ASTM D695
	75.0 ksi @Temperature 23.9 °C	Dry; Oven Cure 250°F, 90 min; ASTM D695
Compressive Modulus	3400 ksi @Temperature 71.1 °C	Dry; Oven Cure 250°F, 90 min; ASTM D695
	3700 ksi @Temperature 23.9 °C	Dry; Oven Cure 250°F, 90 min; ASTM D695
Shear Strength	7.30 ksi @Temperature 71.1 °C	Short-Beam, Dry; Oven Cure 250°F, 90 min; ASTM D2344
	9.10 ksi @Temperature 23.9 °C	Short-Beam, Dry; Oven Cure 250°F, 90 min; ASTM D2344

Processing Properties	Original Value	Comments
Gel Time	2.00 - 6.00 min
Shelf Life	6.00 Month @Temperature -17.8 °C

Descriptive Properties
Prepreg Resin Content (%)	36-44
Resin Flow (%)	7-21	275°F, 15psi

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