Park Aerospace Nelcote® F-502 Phenolic Prepreg, 7781 E-Glass Reinforced

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Park Aerospace Nelcote® F-502 Phenolic Prepreg, 7781 E-Glass Reinforced
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Nelcote® F-502 is a MIL-R-9299 phenolic resin system suitable for impregnation on any MIL-C-9084 fabric with a compatible finish. F-502 is used in the manufacture of ablative reinforcements in rocket nozzles, as well as ducting and secondary structures. GMS4001 qualified specifications. Key Features and Benefits: Provides a combination of high-strength and ablative properties for demanding applications Low thermal expansion Good Tack and Drape properties Conforms to MIL-R-9299 Type B Applications/Qualifications: Rocket Nozzles Ducting Secondary Structures Information provided by Park Electrochemical Corp.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.75 g/cc	1.75 g/cc	ASTM D792
Volatiles	2.0 - 5.0 % @Temperature 135 °C	2.0 - 5.0 % @Temperature 275 °F	8 min
Thickness	229 microns	9.00 mil	cured laminate, per ply

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	70	70	ASTM D2583
Tensile Strength, Yield	331 MPa @Temperature 260 °C	48000 psi @Temperature 500 °F	0° Direction, Dry; 325°F Autoclave Cured; ASTM D638
	352 MPa @Temperature 23.9 °C	51000 psi @Temperature 75.0 °F	0° Direction, Dry; 325°F Autoclave Cured; ASTM D638
Tensile Modulus	20.0 GPa @Temperature 260 °C	2900 ksi @Temperature 500 °F	0° Direction, Dry; 325°F Autoclave Cured; ASTM D638
	25.5 GPa @Temperature 23.9 °C	3700 ksi @Temperature 75.0 °F	0° Direction, Dry; 325°F Autoclave Cured; ASTM D638
Flexural Strength	276 MPa @Temperature 260 °C	40000 psi @Temperature 500 °F	Dry; 325°F Autoclave Cured; ASTM D790
	490 MPa @Temperature 23.9 °C	71000 psi @Temperature 75.0 °F	Dry; 325°F Autoclave Cured; ASTM D790
Flexural Modulus	18.6 GPa @Temperature 260 °C	2700 ksi @Temperature 500 °F	Dry; 325°F Autoclave Cured; ASTM D790
	24.8 GPa @Temperature 23.9 °C	3600 ksi @Temperature 75.0 °F	Dry; 325°F Autoclave Cured; ASTM D790
Compressive Strength	262 MPa @Temperature 260 °C	38000 psi @Temperature 500 °F	Dry; 325°F Autoclave Cured; ASTM D695
	462 MPa @Temperature 23.9 °C	67000 psi @Temperature 75.0 °F	Dry; 325°F Autoclave Cured; ASTM D695
Compressive Modulus	20.7 GPa @Temperature 260 °C	3000 ksi @Temperature 500 °F	Dry; 325°F Autoclave Cured; ASTM D695
	24.1 GPa @Temperature 23.9 °C	3500 ksi @Temperature 75.0 °F	Dry; 325°F Autoclave Cured; ASTM D695

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	1.17 J/g-°C @Temperature 65.6 °C	0.280 BTU/lb-°F @Temperature 150 °F	ASTM C351

Processing Properties	Metric	English	Comments
Gel Time	0.800 - 1.70 min	0.800 - 1.70 min
Shelf Life	3.00 Month @Temperature 4.44 °C	3.00 Month @Temperature 40.0 °F
	6.00 Month @Temperature -17.8 °C	6.00 Month @Temperature 0.000 °F

Descriptive Properties
Fabric Area Weight (g/m²)	303
Prepreg Resin Content (%)	31-37
Resin Flow (%)	5-20		325°F, 15psi

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PPARK046 / 89318

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