Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Applications & Uses
- Markets
- Applications
- Composites End Use
- Composites Processing Methods
- Applications
- Remove material from cold storage at least 20 hours prior to use to allow for stabilization at room temperature. Keep the material wrapped to prevent moisture from condensing on the adhesive. If details are cut and replaced into cold storage, shorter stabilization times may be used. Cut the material to size, remove the release paper and apply to part or mold. Remove the separator paper and join the parts together. Parts are now ready to be bonded and may be cured in a press, autoclave, or vacuum bag in an oven. Apply at least 30 psi pressure.
Properties
- Physical Properties
- Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Volatiles | max. 1 | % | — |
| Tack | Medium | — | — |
| Form | Modified epoxy impregnated fabric | — | — |
| Resin Content | 45 to 50 | % by Weight | — |
| Separator | Release paper | — | — |
| Gel Time | 12 min. 36 sec. at 200°F | — | — |
| Gel Time (250°F) | 12 (36) | Minutes (Seconds) | — |
| Value | Units | Test Method / Conditions | |
| Tensile Strength at 75°F (24°C) | 72000 | psi | — |
| Tensile Strength at 180°F (82°C) | 69000 | psi | — |
| Tensile Modulus at 75°F (24°C) | 4.3 X 106 | psi | — |
| Tensile Modulus at 180°F (82°C) | 4.5 X 106 | psi | — |
| Flexural Strength at 75°F (24°C) | 114000 | psi | — |
| Flexural Strength at 180°F (82°C) | 118000 | psi | — |
| Flexural Strength at 350°F (177°C) | 42000 | psi | — |
| Flexural Strength after 24 hours at 350°F (177°C) | 42000 | psi | — |
| Flexural Modulus at 75°F (24°C) | 4.6 X 106 | psi | — |
| Flexural Modulus at 180°F (82°C) | 4.6 X 106 | psi | — |
Technical Details & Test Data
- Cure Cycle
DA 4517 is designed to cure in one hour at 250°F (121°C), however this system may be cured at 180°F for three hours with post cures of elevated temperatures for one hour if higher temperature range applications are required. The prepreg may be cured using either standard heat-up methods or by in-hot, out-hot press applications. A pressure of 30 psi is recommended, however pressures of 10 to 50 psi may be used.
Storage & Handling
- Shelf Life
- 6 Months (40°F), 1 Year (0°F), 30 Days (75°F)
- Storage
Store material in a contaminate free container and store at O degrees F for extended storage. For shorter storage time requirements store at 40 degrees F, this enables quicker stabilization times.