Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Product Highlights
- 250°F (121°C) Cure
- Vacuum Bag, Autoclave, or Press Cure
- Service Temperature up to 300°F (149°C)
- Meets Requirements of MIL-R-7575C, Grades A and B, Class 0 and 4
Applications & Uses
Properties
- Physical Form
- Mechanical Properties
- Electrical Properties
| Value | Units | Test Method / Conditions | |
| Tensile strength at 75°F (24°C) (Dry) | 52 | ksi | — |
| Tensile Modulus at 75°F (24°C) (Dry) | 3.2 | msi | — |
| Tensile strength at 75°F (24°C) (Wet) | 50 | ksi | — |
| Tensile Modulus at 75°F (24°C) (Wet) | 3.1 | msi | — |
| Compression strength at 75°F (24°C) (Dry) | 52 | ksi | — |
| Compression Modulus at 75°F (24°C) (Dry) | 3.4 | msi | — |
| Compression strength at 75°F (24°C) (Wet) | 48 | ksi | — |
| Compression Modulus at 75°F (24°C) (Wet) | 3.3 | msi | — |
| Flexural strength at 75°F (24°C) (Dry) | 70 | ksi | — |
| Flexural Modulus at 75°F (24°C) (Dry) | 3.3 | msi | — |
| Flexural strength at 75°F (24°C) (Wet) | 68 | ksi | — |
| Flexural Modulus at 75°F (24°C) (Wet) | 3.2 | msi | — |
| Short beam shear at 75°F (24°C) (Wet) | 3.1 | ksi | — |
| Laminate resin Content | 34 | % | — |
| Specific gravity | 1.8 | — | — |
| Barcol hardness | 70 | — | — |
| Value | Units | Test Method / Conditions | |
| Dielectric constant (Dry) | 4.25 | — | — |
| Dielectric constant (Wet) | 4.33 | — | — |
| Loss tangent (Dry) | 0.011 | — | — |
| Loss tangent (Wet) | 0.015 | — | — |
Packaging & Availability
- shipping
- Prepreg is generally shipped in a sealed polyethylene bag in refrigerated transportation or in containers with dry ice.
Storage & Handling
- Product Handling and Safety
Hexcel recommends that customers observe established precautions for handling 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.
- Storage
F149 prepreg should be sealed in a polyethylene bag and refrigerated, preferably below 32°F (0°C). Following removal from refrigerated source, allow the prepreg to reach room temperature before opening the polyethylene bag to prevent moisture condensation.
- Shelf Life
- 6 months at 0°F (–18°C)
- 3 months at 40°F (4°C)
- 1 month at 70°F (21°C)