Park Aerospace E-765 T700 Uni Tape
- Chemical Family
- Epoxy & Epoxy Derivatives
Park’s E-765 is a toughened 270°F cure epoxy prepreg system designed to replace 350°F cure systems in many aircraft structural applications. Park’s E-765-3K-PW, -6K-5HS and 7781 materials are AGATE approved. FAA-approved, B-Basis design allowable databases for AGATE materials are available upon request. Park has also developed AGATE approved material and process specifications which are also available upon request.
Product families
- Thermoset Prepregs
Other characteristics
- End Uses
Bulkheads, Doors, Fairings, Fuselage, Radomes, Wing Box, Wing Ribs, Wing Skins
- Functions
- Prepreg
- Polymer Name
- Epoxy Resins & Compounds
- Processing Methods
Compression Molding, Out of Autoclave Prepreg, Prepreg Processing, Vacuum Bagging
- Reinforcement Material
- Carbon Fibers, Glass Fibers
- Carbon Fibers
- Glass Fibers
- Markets
- Automotive & Transportation
- Building & Construction
- Technology
- Composite Materials
- Product Forms
Available on a wide variety of reinforcements including fiberglass and carbon; Various Fabrics per customer requirements (e.g., plain, harness and twill weaves); Unitape and glass broad goods up to 60 inches wide; Compatible with autoclave, vacuum bag/oven or press cure processes
- Quality Standards
Advanced General Aviation Transport Experiments (AGTE) Approved; Federal Aviation Administration (FAA) Approved
- Composites End Use
- Bulkheads
- Doors
- Fairings
- Fuselage
- Radomes
- Wing Box
- Wing Ribs
- Wing Skins
- Material Features
- Tacky
- Benefits and Features
Designed to replace first generation 350°F (176°C) cure systems; Wide cure temperature process window of 260°F to 350°F (lower cures are possible depending on the application); Exhibits low void content, e.g., <2% after oven/vacuum cure.; Excellent fiber property translation.; 180°F Wet service temperature after ~270°F cure; Good tack and drape characteristics after 30 days at room temperature.
- Thick Laminate Cure Cycle
Slower ramp rate and multiple dwell times below 190°F are critical to remove excess energy from the system and avoid dangerous exotherms.; Contact your Park representative to discuss specific part process requirements to optimize processing of E-765.; Failure to properly control the exotherm can lead to a potential safety hazard and/or degradation of final material performance.
- Applications and Qualifications
- Primary Aircraft Structures
- Fuselage
- Wing
- Control Surfaces
- Secondary Aircraft Structures
- Fairings
- Doors
- Radomes
Technical data
Table 1 of 3
12 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Fabric Area Weight | 150 | gsm | — |
| Resin Solids | 35±3 | % | — |
| Volatile Content | max. 1 | % | — |
| Flow (275°F / 15psi) | 18±6 | % | — |
| Tack | Medium | — | — |
| Tg (dry, by DMA, onset storage mod) | 150° C / 300°F | — | — |
| Gel time (275°F) | 2 - 6 | minutes | — |
| Cure per ply thickness | 0.0056 | in | — |
| Dielectric Constant | 4.5 | Dk | — |
| Loss Tangent | 0.02 | Df | — |
| Flatwise Tensile Strength | 1000 psi | — | ASTM-C-297 |
| Cure Type | Vacuum/Oven | — | — |
Table 2 of 3
25 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Climbing Drum Peel | 4 | in lb/3 in | ASTM-D-1781 |
| Tensile Strength - Dry (65°F) | 370 | Ksi | ASTM-D-3039-95 |
| Tensile Strength - Dry (70°F) | 370 | Ksi | ASTM-D-3039-95 |
| Tensile Strength - Dry (180°F) | 349 | Ksi | ASTM-D-3039-95 |
| Tensile Strength - Wet (180°F) | 333 | Ksi | ASTM-D-3039-95 |
| Tensile Modulus - Dry (65°F) | 18.8 | Msi | ASTM-D-3039-95 |
| Tensile Modulus - Dry (70°F) | 18.7 | Msi | ASTM-D-3039-95 |
| Tensile Modulus - Dry (180°F) | 18.2 | Msi | ASTM-D-3039-95 |
| Tensile Modulus - Wet (180°F) | 18.6 | Msi | ASTM-D-3039-95 |
| Compressive Strength - Dry (65°F) | 211 | Ksi | SACMA 1-94 |
| Compressive Strength - Dry (70°F) | 180 | Ksi | SACMA 1-94 |
| Compressive Strength - Dry (180°F) | 177 | Ksi | SACMA 1-94 |
Table 3 of 3
1 row| Characteristic | Value | Unit |
|---|---|---|
| Frequency | 9.375 | GHz |
