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Park Electrochemical Nelcote® E-761 Epoxy Prepreg, 7781 E-Glass Reinforced
| Category | Polymer , Thermoset , Epoxy |
| 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® E-761 Epoxy Prepreg, 7781 E-Glass Reinforced.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Nelcote® E-761 is a versatile self-adhesive epoxy matrix for use in aerospace and commercial application where ease of processing and cost are key considerations.Key Features and Benefits:Controlled flow for ease of processingSelf adhesive for honeycomb or foam sandwich laminates without the use of film adhesiveFlexible cure temperature 180°F to 250°FGood electrical propertiesFlame and fire retardant per FAR 25.853Wet service temperatures up to 160°FApplications/Qualifications:RadomesAircraft InteriorsSecondary Aircraft StructuresSandwich PanelsMRI ResonatorsWidely specified on commercial and military aircraft programsInformation provided by Park Electrochemical Corp.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Volatiles | <= 1.5 % @Temperature 135 °C |
<= 1.5 % @Temperature 275 °F |
8 min |
| Thickness | 229 microns | 9.00 mil | Per Ply |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Yield | 3.79 - 4.78 MPa | 549 - 693 psi | Flatwise (sandwich); Bag Surface |
| 5.79 MPa | 840 psi | Flatwise (sandwich); Mold Surface | |
| 324 MPa @Temperature 93.3 °C |
47000 psi @Temperature 200 °F |
0° Direction, Dry; ASTM D638 | |
| 359 MPa @Temperature 71.1 °C |
52000 psi @Temperature 160 °F |
0° Direction, Wet; ASTM D638 | |
| 407 MPa @Temperature 21.1 °C |
59000 psi @Temperature 70.0 °F |
0° Direction, Wet; ASTM D638 | |
| 448 MPa @Temperature 71.1 °C |
65000 psi @Temperature 160 °F |
0° Direction, Dry; ASTM D638 | |
| 496 MPa @Temperature 21.1 °C |
72000 psi @Temperature 70.0 °F |
0° Direction, Dry; ASTM D638 | |
| 655 MPa @Temperature -53.9 °C |
95000 psi @Temperature -65.0 °F |
0° Direction, Dry; ASTM D638 | |
| Tensile Modulus | 22.8 GPa @Temperature 71.1 °C |
3300 ksi @Temperature 160 °F |
0° Direction, Wet; ASTM D638 |
| 23.4 GPa @Temperature 21.1 °C |
3400 ksi @Temperature 70.0 °F |
0° Direction, Wet; ASTM D638 | |
| 24.1 GPa @Temperature -53.9 °C |
3500 ksi @Temperature -65.0 °F |
0° Direction, Dry; ASTM D638 | |
| 25.5 GPa @Temperature 21.1 °C |
3700 ksi @Temperature 70.0 °F |
0° Direction, Dry; ASTM D638 | |
| 25.5 GPa @Temperature 71.1 °C |
3700 ksi @Temperature 160 °F |
0° Direction, Dry; ASTM D638 | |
| 26.9 GPa @Temperature 93.3 °C |
3900 ksi @Temperature 200 °F |
0° Direction, Dry; ASTM D638 | |
| Flexural Strength | 448 MPa @Temperature 71.1 °C |
65000 psi @Temperature 160 °F |
Wet; ASTM D790 |
| 455 MPa @Temperature 93.3 °C |
66000 psi @Temperature 200 °F |
Dry; ASTM D790 | |
| 531 MPa @Temperature 71.1 °C |
77000 psi @Temperature 160 °F |
Dry; ASTM D790 | |
| 552 MPa @Temperature 21.1 °C |
80000 psi @Temperature 70.0 °F |
Wet; ASTM D790 | |
| 655 MPa @Temperature 21.1 °C |
95000 psi @Temperature 70.0 °F |
Dry; ASTM D790 | |
| 807 MPa @Temperature -53.9 °C |
117000 psi @Temperature -65.0 °F |
Dry; ASTM D790 | |
| Flexural Modulus | 18.6 GPa @Temperature 71.1 °C |
2700 ksi @Temperature 160 °F |
Wet; ASTM D790 |
| 19.3 GPa @Temperature 93.3 °C |
2800 ksi @Temperature 200 °F |
Dry; ASTM D790 | |
| 20.0 GPa @Temperature 71.1 °C |
2900 ksi @Temperature 160 °F |
Dry; ASTM D790 | |
| 20.7 GPa @Temperature 21.1 °C |
3000 ksi @Temperature 70.0 °F |
Wet; ASTM D790 | |
| 22.1 GPa @Temperature -53.9 °C |
3200 ksi @Temperature -65.0 °F |
Dry; ASTM D790 | |
| 22.1 GPa @Temperature 21.1 °C |
3200 ksi @Temperature 70.0 °F |
Dry; ASTM D790 | |
| Compressive Strength | 324 MPa @Temperature 71.1 °C |
47000 psi @Temperature 160 °F |
Wet; ASTM D695 |
| 359 MPa @Temperature 93.3 °C |
52000 psi @Temperature 200 °F |
Dry; ASTM D695 | |
| 379 MPa @Temperature 71.1 °C |
55000 psi @Temperature 160 °F |
Dry; ASTM D695 | |
| 386 MPa @Temperature 21.1 °C |
56000 psi @Temperature 70.0 °F |
Wet; ASTM D695 | |
| 455 MPa @Temperature 21.1 °C |
66000 psi @Temperature 70.0 °F |
Dry; ASTM D695 | |
| 579 MPa @Temperature -53.9 °C |
84000 psi @Temperature -65.0 °F |
Dry; ASTM D695 | |
| Compressive Modulus | 24.1 GPa @Temperature 71.1 °C |
3500 ksi @Temperature 160 °F |
Wet; ASTM D695 |
| 24.1 GPa @Temperature 71.1 °C |
3500 ksi @Temperature 160 °F |
Dry; ASTM D695 | |
| 24.1 GPa @Temperature 93.3 °C |
3500 ksi @Temperature 200 °F |
Dry; ASTM D695 | |
| 24.8 GPa @Temperature 21.1 °C |
3600 ksi @Temperature 70.0 °F |
Wet; ASTM D695 | |
| 24.8 GPa @Temperature 21.1 °C |
3600 ksi @Temperature 70.0 °F |
Dry; ASTM D695 | |
| 25.5 GPa @Temperature -53.9 °C |
3700 ksi @Temperature -65.0 °F |
Dry; ASTM D695 | |
| Shear Strength | 35.9 MPa @Temperature 93.3 °C |
5200 psi @Temperature 200 °F |
Short-Beam, Dry; ASTM D2344 |
| 41.4 MPa @Temperature 71.1 °C |
6000 psi @Temperature 160 °F |
Short-Beam, Wet; ASTM D2344 | |
| 44.8 MPa @Temperature 71.1 °C |
6500 psi @Temperature 160 °F |
Short-Beam, Dry; ASTM D2344 | |
| 55.2 MPa @Temperature 21.1 °C |
8000 psi @Temperature 70.0 °F |
Short-Beam, Wet; ASTM D2344 | |
| 62.1 MPa @Temperature 21.1 °C |
9000 psi @Temperature 70.0 °F |
Short-Beam, Dry; ASTM D2344 | |
| 79.3 MPa @Temperature -53.9 °C |
11500 psi @Temperature -65.0 °F |
Short-Beam, Dry; ASTM D2344 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Glass Transition Temp, Tg | 115 °C | 239 °F | Dry; DMA |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Dielectric Constant | 4.2 @Frequency 9.375e+9 Hz |
4.2 @Frequency 9.375e+9 Hz |
|
| 4.2 @Frequency 1.80e+10 Hz |
4.2 @Frequency 1.80e+10 Hz |
||
| Dissipation Factor | 0.013 @Frequency 9.375e+9 Hz |
0.013 @Frequency 9.375e+9 Hz |
|
| 0.013 @Frequency 1.80e+10 Hz |
0.013 @Frequency 1.80e+10 Hz |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Gel Time | 4.00 min | 4.00 min | |
| Shelf Life | 12.0 Month @Temperature -17.8 °C |
12.0 Month @Temperature 0.000 °F |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Climbing Drum Peel (in-lb/3in) | 14.7 | ASTM D1781; Mold Surface, 75°F |
| 14.8 | ASTM D1781; Bag Surface, 75°F | |
| Fabric Area Weight (g/m²) | 303.5 | |
| Long Beam Flexure (P/Y lb/in) | 152 / 124 | Bag Surface |
| 201 | Mold Surface | |
| Long Beam Flexure Strength (lbs) | 157 / 130 | Bag Surface |
| 205 | Mold Surface | |
| Prepreg Resin Content (%) | 39 | |
| Resin Flow (%) | 14 | 275°F, 50psi |
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