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Park Electrochemical Nelcote® E-720 Epoxy Prepreg, 581 Quartz Reinforced
| Category | Polymer , Thermoset , Epoxy |
| Manufacturer | Park Electrochemical Corp. |
| Trade Name | Nelcote® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Park Electrochemical Nelcote® E-720 Epoxy Prepreg, 581 Quartz Reinforced.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Nelcote® E-720 is a modified epoxy resin system designed to retain excellent mechanical properties after extended exposure to high temperature. E-720 has a proven history in many demanding aerospace applications.Key Features and Benefits:Excellent retention of mechanical properties after long-term high temperature exposureLong out-time for easy processingGood electrical propertiesApplications/Qualifications:Secondary Aircraft StructuresRadomesNacellesInlet DuctsFairingsInformation provided by Park Electrochemical Corp.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Volatiles | <= 2.0 % @Temperature 135 °C |
<= 2.0 % @Temperature 275 °F |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Yield | 414 MPa @Temperature 216 °C |
60000 psi @Temperature 420 °F |
0° Direction, Dry; ASTM D638 |
| 621 MPa @Temperature 23.9 °C |
90000 psi @Temperature 75.0 °F |
0° Direction, Dry; ASTM D638 | |
| Flexural Strength | 276 MPa @Temperature 216 °C |
40000 psi @Temperature 420 °F |
Dry; ASTM D790 |
| 621 MPa @Temperature 23.9 °C |
90000 psi @Temperature 75.0 °F |
Dry; ASTM D790 | |
| Flexural Modulus | 13.8 GPa @Temperature 216 °C |
2000 ksi @Temperature 420 °F |
Dry; ASTM D790 |
| 23.4 GPa @Temperature 23.9 °C |
3400 ksi @Temperature 75.0 °F |
Dry; ASTM D790 | |
| Compressive Strength | 207 MPa @Temperature 216 °C |
30000 psi @Temperature 420 °F |
Dry; ASTM D695 |
| 345 MPa @Temperature 23.9 °C |
50000 psi @Temperature 75.0 °F |
Dry; ASTM D695 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Glass Transition Temp, Tg | 180 °C | 356 °F | Laminate; standard cure |
| 230 °C | 446 °F | Laminate; post cure |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Dielectric Constant | 3.3 - 3.6 | 3.3 - 3.6 | |
| Dissipation Factor | 0.012 - 0.014 | 0.012 - 0.014 |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Gel Time | 1.00 - 2.00 min | 1.00 - 2.00 min | |
| Shelf Life | 12.0 Month @Temperature -17.8 °C |
12.0 Month @Temperature 0.000 °F |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Fabric Area Weight (g/m²) | 292 | |
| Prepreg Resin Content (%) | 33-37 | |
| Resin Flow (%) | 10-24 | 325°F, 50psi |
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