Park Aerospace Nelcote® F-554 Phenolic Prepreg, Aerospace Silica Fabric Reinforced

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Park Aerospace Nelcote® F-554 Phenolic Prepreg, Aerospace Silica Fabric Reinforced
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Nelcote® F-554 is a high purity silica filled phenolic resin coated on Commercial or Aerospace grade silica fabric. F-554 is used in the manufacture of intermediate temperature ablative rocket nozzles, heat shields, and combustion chambers in highly oxidative environments. 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 Applications/Qualifications: Rocket Nozzles Combustion Chambers Heat Shields Rocket Motor Throat Sections Information provided by Park Electrochemical Corp.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.70 g/cc	1.70 g/cc	ASTM D792
Filler Content	2.0 - 4.0 %	2.0 - 4.0 %
Volatiles	2.0 - 5.0 % @Temperature 163 °C	2.0 - 5.0 % @Temperature 325 °F	10 min
Thickness	533 microns	21.0 mil	nominal, cured, per ply

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	70	70	ASTM D2583
Tensile Strength, Yield	89.6 MPa @Temperature 23.9 °C	13000 psi @Temperature 75.0 °F	0° Direction, Dry; 325°F Autoclave; ASTM D638
Tensile Modulus	16.5 GPa @Temperature 23.9 °C	2400 ksi @Temperature 75.0 °F	0° Direction, Dry; 325°F Autoclave; ASTM D638
Flexural Strength	159 MPa @Temperature 23.9 °C	23000 psi @Temperature 75.0 °F	Dry; 325°F Autoclave; ASTM D790
Flexural Modulus	17.2 GPa @Temperature 23.9 °C	2500 ksi @Temperature 75.0 °F	Dry; 325°F Autoclave; ASTM D790
Compressive Strength	165 MPa @Temperature 23.9 °C	24000 psi @Temperature 75.0 °F	Dry; 325°F Autoclave; ASTM D695
Compressive Modulus	16.5 GPa @Temperature 23.9 °C	2400 ksi @Temperature 75.0 °F	Dry; 325°F Autoclave; ASTM D695

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	1.00 J/g-°C	0.240 BTU/lb-°F	ASTM C351
Thermal Conductivity	4.67 W/m-K @Temperature 149 °C	32.4 BTU-in/hr-ft²-°F @Temperature 300 °F	ASTM C177

Processing Properties	Metric	English	Comments
Shelf Life	6.00 Month @Temperature 4.44 °C	6.00 Month @Temperature 40.0 °F

Descriptive Properties
Nominal Prepreg Weight (oz/yd)	30
Resin Flow (%)	7-17		325°F, 150psi
Resin Solids Content (%)	30-36

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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PPARK052 / 89324

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