Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Material
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Key Features & Benefits
- Low tack / Single poly required
- Store at room temperature (72°F) for up to 3 weeks
- Excellent sandwich adhesive properties
- Short cycle time - Meets FAR 25.853 burn requirements
- Product Forms
- Available on fiberglass such as 7781 or other types of fabrics
- Solution coated fabrics up to 60 inches wide
Applications & Uses
- Markets
- Applications
- Applications / Qualifications
- Specialty Applications
- Recreational Applications
- Autoclave Cure Cycle
- Apply 24”Hg vacuum (minimum) for 1 hour before beginning heat cycle
- Increase pressure to 50psi, tent vacuum when pressure is at 20psi
- Raise product temperature from RT to 350-360°F at 2 – 5°F/min
- Hold product at cure temperature for 90 – 120 minutes
- Cool product to 150°F at no more than 8°F/min
Properties
- Physical Properties
- Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Prepreg Resin Content | 42 - 46 | % | — |
| Resin Flow (325°F, 100psi) | 25 - 32 | % | — |
| Volatiles (325°F, 5 min) | max. 2.5 | % | — |
| Gel Time (325°F) | 50 - 100 | Seconds | — |
| Value | Units | Test Method / Conditions | |
| Tensile Strength - Dry (23°C) | 496 | Mpa | ASTM-D-638 |
| Tensile Strength - Wet (23°C) | 426 | MPa | — |
| Tensile Strength - Dry (93°C) | 414 | MPa | — |
| Tensile Strength - Wet (93°C) | 357 | Ksi | — |
| Tensile Modulus - Dry (23°C) | 25.5 | — | — |
| Tensile Modulus - Wet (23°C) | 24.1 | Msi | — |
| Tensile Modulus - Dry (93°C) | 23.5 | Msi | — |
| Tensile Modulus - Wet (93°C) | 23.5 | Msi | — |
| Compressive Strength - Dry (23°C) | 517 | Ksi | — |
| Compressive Strength - Wet (23°C) | 435 | Ksi | — |
| Compressive Strength - Dry (93°C) | 366 | Ksi | — |
| Compressive Strength - Wet (93°C) | 331 | Ksi | — |
| Compressive Modulus - Dry (23°C) | 25.5 | Msi | — |
| Compressive Modulus - Wet (23°C) | 24.1 | Msi | — |
| Compressive Modulus - Dry (93°C) | 24.1 | Msi | — |
| Compressive Modulus - Wet (93°C) | 24.1 | Msi | — |
| Flexural Strength - Dry (23°C) | 759 | Ksi | — |
| Flexural Strength - Wet (23°C) | 647 | Ksi | — |
| Flexural Strength - Dry (93°C) | 580 | Ksi | — |
| Flexural Strength - Wet (93°C) | 504 | Ksi | — |
| Flexural Modulus- Dry (23°C) | 25.5 | Msi | — |
| Flexural Modulus- Wet (23°C) | 24.1 | Msi | — |
| Flexural Modulus- Dry (93°C) | 23.5 | Msi | — |
| Flexural Modulus- Wet (93°C) | 23.5 | Msi | — |
| Short Beam Shear - Dry (23°C) | 67.6) | Ksi | — |
| Laminate Resin - Dry (23°C) | 34 | % | — |
| Glass Transition °F (°C) (TMA 10°C/min) - Dry (23°C) | 158 | — | — |
| Thermal Coefficient (CTE) - Dry (23°C) | 62.0x10-6 | mm/mm/°C | — |
Regulatory & Compliance
- Quality Standards
Storage & Handling
- Prepreg Storage Life
Out Life: 30 days @ 75°F
Shelf Life: 6 months @ 0°F