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Park Electrochemical Nelcote® P-670I Polyester Prepreg, 7781 E-Glass Reinforced

Category Polymer , Thermoset , Polyester, TS
Manufacturer Park Electrochemical Corp.
Trade Name Nelcote®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Park Electrochemical Nelcote® P-670I Polyester Prepreg, 7781 E-Glass Reinforced.pdf
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Material Notes:
Nelcote® P-670I is a versatile, non-styrenated/low VOC polyester resin. P670I is used in a wide variety of applications including radomes, tooling and aircraft structures.Key Features and Benefits:Non-styrenated / low VOC resin systemMeets requirements of MIL-R-7575C, grade B class 4Flame retardant formulationGood electrical properties at elevated temperaturesRetains good mechanical properties after exposure to high-temperature conditioning (250°F)Applications/Qualifications:RadomesToolingAircraft StructuresInformation provided by Park Electrochemical Corp.
Physical Properties Metric English Comments
Density 2.00 g/cc
0.0723 lb/in³
Volatiles <= 2.0 %

@Temperature 104 °C
 <= 2.0 %

@Temperature 220 °F
 8 min
Water Absorption 0.68 %
0.68 %
24hr immersion in DI H20
Mechanical Properties Metric English Comments
Hardness, Barcol 75
75
Tensile Strength, Yield 386 MPa

@Temperature 177 °C
 56000 psi

@Temperature 350 °F
 0° Direction, Wet; ASTM D638 Type 1
414 MPa

@Temperature 23.9 °C
 60000 psi

@Temperature 75.0 °F
 0° Direction, Wet; ASTM D638 Type 1
421 MPa

@Temperature 121 °C
 61000 psi

@Temperature 250 °F
 0° Direction, Wet; ASTM D638 Type 1
483 MPa

@Temperature 23.9 °C
 70000 psi

@Temperature 75.0 °F
 0° Direction, Dry; ASTM D638 Type 1
Tensile Modulus 22.8 GPa

@Temperature 177 °C
 3300 ksi

@Temperature 350 °F
 0° Direction, Wet; ASTM D638 Type 1
24.1 GPa

@Temperature 121 °C
 3500 ksi

@Temperature 250 °F
 0° Direction, Wet; ASTM D638 Type 1
25.5 GPa

@Temperature 23.9 °C
 3700 ksi

@Temperature 75.0 °F
 0° Direction, Wet; ASTM D638 Type 1
48.3 GPa

@Temperature 23.9 °C
 7000 ksi

@Temperature 75.0 °F
 0° Direction, Dry; ASTM D638 Type 1
Flexural Strength 248 MPa

@Temperature 177 °C
 36000 psi

@Temperature 350 °F
 Wet; ASTM D790
393 MPa

@Temperature 121 °C
 57000 psi

@Temperature 250 °F
 Wet; ASTM D790
545 MPa

@Temperature 23.9 °C
 79000 psi

@Temperature 75.0 °F
 Wet; ASTM D790
600 MPa

@Temperature 23.9 °C
 87000 psi

@Temperature 75.0 °F
 Dry; ASTM D790
Flexural Modulus 18.6 GPa

@Temperature 177 °C
 2700 ksi

@Temperature 350 °F
 Wet; ASTM D790
19.3 GPa

@Temperature 121 °C
 2800 ksi

@Temperature 250 °F
 Wet; ASTM D790
22.1 GPa

@Temperature 23.9 °C
 3200 ksi

@Temperature 75.0 °F
 Dry; ASTM D790
23.4 GPa

@Temperature 23.9 °C
 3400 ksi

@Temperature 75.0 °F
 Wet; ASTM D790
Compressive Strength 372 MPa

@Temperature 23.9 °C
 54000 psi

@Temperature 75.0 °F
 Wet; ASTM D695
400 MPa

@Temperature 23.9 °C
 58000 psi

@Temperature 75.0 °F
 Dry; ASTM D695
Thermal Properties Metric English Comments
Flammability Test 5.0
5.0
inches; Method 2021
Electrical Properties Metric English Comments
Dielectric Constant 4.8

@Frequency 9.375e+9 Hz
 4.8

@Frequency 9.375e+9 Hz
Dissipation Factor 0.019

@Frequency 9.375e+9 Hz
 0.019

@Frequency 9.375e+9 Hz
Processing Properties Metric English Comments
Gel Time 0.500 - 1.50 min
0.500 - 1.50 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 Value Comments
Fabric Area Weight (g/m²) 300
Prepreg Resin Content (%) 37-43
Resin Flow (%) 8-12
275°F, 15psi
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