Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Product Highlights
Uncured
- Good tack and drape to assist layup and assembly
- Adaptable for use on various fiber and weave combinations
- Moderate viscosity during cure
- Resin system lends itself to a simple cure cycle
- Long shelf life
Cured
- High strength retention: –65°F to 350°F (–54° to 177°C)
- Excellent translation of carbon fiber properties
- Self-extinguishing when tested per F.A.R. 25.853
Applications & Uses
Properties
- Physical Form
- Neat Resin Properties
| Value | Units | Test Method / Conditions | |
| Specific gravity | 1.267 | — | — |
| Tg (Wet) | 271 (133) | °F (°C) | — |
| Tg (Dry) | 370 (188) | °F (°C) | — |
| Equilibrium moisture absorption | 4.8 | % | — |
| Linear Coefficient of Thermal Expansion | 2.9 x 10–5 (1.6 x 10–5) | in/in/°F (cm/cm/°C) | — |
| Tensile Strength | 10.9 (75) | ksi (Mpa) | — |
| Tensile Modulus | 0.62 (4.27) | Msi (Gpa) | — |
| Tensile Strain | 2.4 | % | — |
| Fracture Toughness, K1C | 0.55 (0.60) | ksi (Mpa) | — |
| Strain energy release rate, G1C | 0.43 (0.075) | in-lb/in2 (KJ/m2) | — |
| Gel time at 350°F (177°C) | min. 2-9 | — | — |
Packaging & Availability
- shipping
- Prepreg fabric and tape are generally shipped in sealed polyethylene bags in insulated containers packed with dry ice.
Storage & Handling
- Storage
HexPly® F263 prepreg should be sealed in a polyethylene bag and refrigerated, preferably below 32°F (0°C). Following removal from refrigerated storage, allow the prepreg to reach room temperature before opening the polyethylene bag to avoid moisture condensation. Shelf life: 6 months @ 0°F (–18°C), 3 months @ 40°F (4°C) (maximum, from date of manufacture).
- Product Handling and Safety
Hexcel recommends that customers observe established precautions for handling epoxy resins and fine fibrous materials. Operators working with this product should wear clean, impervious gloves to reduce the possibility of skin contact and to prevent contamination of the material.