Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Material
- Composite Materials Functions
- Technologies
Features & Benefits
- Key Features & Benefits
- Good low pressure consolidation
- Excellent handling characteristics and out-time
- High tack, high flow prepreg
- 250°F cure epoxy system
- Good mechanical properties at high service temperatures
- Product Forms
- Available on a wide variety of reinforcements including fiberglass and graphite
- Solution coated fabrics up to 60 inches wide
- Compatible with Autoclave, Vacuum/Oven Cure or Press Molding processes
Applications & Uses
- Applications
- Composites Processing Methods
Properties
- Mechanical Properties
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Strength 75°F | 340 | Ksi | — |
| Tensile Strength (180°F) | 337 | Ksi | — |
| Tensile Modulus (75°F) | 20.8 | Msi | — |
| Tensile Modulus (180°F) | 21.6 | Msi | — |
| Compressive Strength - (75°F) | 222 | Ksi | — |
| Compressive Strength (180°F) | 177 | Ksi | — |
| Compressive Modulus (75°F) | 18 | Msi | — |
| Compressive Modulus (180°F) | 18 | Msi | — |
| Flexural Strength - Dry (75°F) | 233 | Ksi | — |
| Flexural Strength - (180°F) | 201 | Ksi | — |
| Flexural Modulus - (75°F) | 15.6 | Msi | — |
| Flexural Modulus - (180°F) | 15.9 | Msi | — |
| Short-Beam Shear Stength 75°F | 12.9 | Ksi | — |
| Short-Beam Shear Stength (180°F) | 9.7 | Ksi | — |
| Value | Units | Test Method / Conditions | |
| Fabric Area Weight | 340 | gsm | — |
| Prepreg Resin Content | 32-38 | % | — |
| Resin Flow (225°F, 50 psi) | 6-20 | % | — |
| Volatiles (275°F) | max. 1.0 | % | — |
| Gel Time | 2 - 8 | minutes | — |
| Cured Ply Thickness | 0.012 | in | — |
| Tg (Dry, by DMA) | 165°C / 330°F | — | — |
Technical Details & Test Data
- Vacuum/Oven Cure Cycle
- Apply 24”Hg vacuum (minimum) for 1 hour before beginning heat cycle
- Raise product temperature from RT to 250-260°F at 5 – 9°F/min
- Hold product at cure temperature for 90 – 120 minutes
- Cool product to 150°F at no more than 8°F/min
Storage & Handling
- Prepreg Storage Life
- Tack Life: 14 days @ 75°F
- Out Life: 30 days @ 75°F
- Shelf Life: 6 months @ 0°F