Park Aerospace E-752 3K PW G30-500
- Chemical Family
- Epoxy & Epoxy Derivatives
Park’s E-752 is a toughened, 365°F cure epoxy system designed for demanding structural applications up to 265°F/wet. E-752 offers a good balance of toughness, high service temperature and good moisture resistance, as well as excellent tack and drape. Formulated for both oven and autoclave cure, E-752 provides for easy processing with oven cure, without sacrificing mechanical properties.
Product families
- Thermoset Prepregs
Other characteristics
- End Uses
- Ducts, Fairings, Nacelles, Radomes
- Functions
- Prepreg
- Polymer Name
- Epoxy Resins & Compounds
- Processing Methods
- Out of Autoclave Prepreg, Prepreg Processing
- Reinforcement Material
- Carbon Fibers, Glass Fibers
- Carbon Fibers
- Glass Fibers
- Markets
- Automotive & Transportation
- Industrial
- Technology
- Composite Materials
- Product Forms
Available on a wide variety of reinforcements, including fiberglass and graphite; Fabrics and Unidirectional Tape available up to 24" (61 cm) wide; Compatible with Autoclave, Vacuum Bag/Oven or Press Molding processes
- Composites End Use
- Ducts
- Fairings
- Nacelles
- Radomes
- Material Features
- Tacky
- Prepreg Storage Life
- Tack Life
- 21 days @ 75°F
- Out Life
- 21 days @ 75°F
- Shelf Life
- 12 months @ 0°F
- Benefits and Features
Specifically designed to allow both oven cure and autoclave cure; Service temperatures up to 265°F/wet; Controlled flow for ease of processing; Flexible cure temperature 270°F to 365°F o Good mechanical properties can be achieved through oven curing at 270°F, followed by postcure at 365°F; Self-adhesive grade for sandwich panel applications.
- Vacuum Bag/Oven Cure Cycle
Apply 1.0 bar vacuum for 1 hour before beginning heat cycle; Heat at 0.5 – 3°F/min from room temperature to 230 ± 5°F; Hold at 230 ± 5°F for 60 minutes; Heat at 0.5 – 3°F/min to 365 +/-5°F and hold for 125± 5 minutes; Cool to 160°F at no more than 7°F/min Alternate Cycle: Heat at 0.5 – 3°F /min to 260 ± 5°F and cure for 120 minutes, followed by 120 min free standing post-cure @ 360 +/-5°F.
- Applications and Qualifications
- Primary and Secondary Aircraft Structures
- Ducting
- Fairings
- Nacelles
- Composite Materials Functions
- Prepreg
- Composites Processing Methods
- Out of Autoclave Prepreg
- Prepreg Processing
Technical data
Table 1 of 2
16 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Strength 75°F | 340 | Ksi | — |
| Tensile Strength - Dry (250°F) | 350 | Mpa | ASTM-D-638 |
| Tensile Strength - Wet (250°F) | 356 | — | — |
| Tensile Modulus - Dry (75°F) | 23.4 | Msi | — |
| Tensile Modulus - Dry (250°F) | 24.2 | — | — |
| Tensile Modulus - Wet (250°F) | 24.6 | Msi | — |
| Compressive Strength - Dry (250°F) | 264 | Ksi | — |
| Compressive Strength - Dry (250°F) | 190 | Ksi | — |
| Compressive Strength - Wet (250°F) | 148 | Ksi | — |
| Compressive Modulus - Dry (70°F ) | 21.1 | Msi | — |
| Compressive Modulus - Dry (250°F) | 27.2 | GPa | — |
| Compressive Modulus - Wet (250°F) | 22.8 | Msi | — |
Table 2 of 2
5 rows| Characteristic | Value | Unit |
|---|---|---|
| Fabric Area Weight | 193 | gsm |
| Prepreg Resin Content | 32 - 40 | % |
| Resin Flow (275°F, 50psi) | 15 | % |
| Volatiles (275°F, 8 min) | max. .5 | % |
| Gel Time | 5 - 12 | minutes |
