Park Aerospace Nelcote® P-650R Polyester Prepreg, 7781 E-Glass Reinforced

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Park Aerospace Nelcote® P-650R Polyester Prepreg, 7781 E-Glass Reinforced
Categories:	Polymer; Thermoset; Polyester, TS
Material Notes:	Nelcote® P-650R is a non-styrenated/low VOC polyester resin system that has been designed for optical clarity. P-650 exhibits good mechanical properties up to 250°F. Key Features and Benefits: Non-styrenated / low VOC resin system Meets requirements of MIL-R-7575C, grades A and B, class 2 Good optical clarity for aircraft lighting, etc. Applications/Qualifications: Aircraft lighting Wing-light lenses Aircraft floor lighting Information provided by Park Electrochemical Corp.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.88 g/cc	1.88 g/cc
Volatiles	<= 1.0 % @Temperature 104 °C	<= 1.0 % @Temperature 220 °F	8 min
Thickness	254 microns	10.0 mil	cured laminate, per ply

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	76	76
Tensile Strength, Yield	421 MPa @Temperature 23.9 °C	61000 psi @Temperature 75.0 °F	0° Direction, Wet (2 hour water boil); ASTM D638 Type 1
	469 MPa @Temperature 23.9 °C	68000 psi @Temperature 75.0 °F	0° Direction, Dry; ASTM D638 Type 1
Tensile Modulus	24.8 GPa @Temperature 23.9 °C	3600 ksi @Temperature 75.0 °F	0° Direction, Wet (2 hour water boil); ASTM D638 Type 1
	25.5 GPa @Temperature 23.9 °C	3700 ksi @Temperature 75.0 °F	0° Direction, Dry; ASTM D638 Type 1
Flexural Strength	496 MPa @Temperature 71.1 °C	72000 psi @Temperature 160 °F	Dry; ASTM D790
	586 MPa @Temperature 23.9 °C	85000 psi @Temperature 75.0 °F	Wet (2 hour water boil); ASTM D790
	669 MPa @Temperature 23.9 °C	97000 psi @Temperature 75.0 °F	Dry; ASTM D790
Flexural Modulus	21.4 GPa @Temperature 71.1 °C	3100 ksi @Temperature 160 °F	Dry; ASTM D790
	22.8 GPa @Temperature 23.9 °C	3300 ksi @Temperature 75.0 °F	Dry; ASTM D790
	22.8 GPa @Temperature 23.9 °C	3300 ksi @Temperature 75.0 °F	Wet (2 hour water boil); ASTM D790
Compressive Strength	393 MPa @Temperature 23.9 °C	57000 psi @Temperature 75.0 °F	Wet (2 hour water boil); ASTM D695
	421 MPa @Temperature 23.9 °C	61000 psi @Temperature 75.0 °F	Dry; ASTM D695
Compressive Modulus	25.5 GPa @Temperature 23.9 °C	3700 ksi @Temperature 75.0 °F	Wet (2 hour water boil); ASTM D695
	27.6 GPa @Temperature 23.9 °C	4000 ksi @Temperature 75.0 °F	Dry; ASTM D695

Processing Properties	Metric	English	Comments
Gel Time	0.500 min	0.500 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)	300
Prepreg Resin Content (%)	38-44
Resin Flow (%)	10-11		275°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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