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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  |
| Price | EMAIL US sales@lookpolymers.com |
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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