Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Materials Features
- Product Highlights
- Excellent adhesive properties–ideal for honeycomb sandwich construction without the use of a resin
- Medium tack level–easily laminates to mold surface
- Good impact resistance
- 60 day out life at ambient temperature
- Available in woven fabric and unidirectional prepreg format
- Good surface finish
- Low volatile content–no solvents used during processing
Applications & Uses
- Applications
- Composites End Use
- Composites Processing Methods
- Recommended Applications
- Sport & Recreation
- Motorsport & Formula 1
- Automotive
- Medical
- Industrial
- Marine industries
- General aircraft fittings
- Wide range of engineering Applicationss
Properties
- Physical Form
- Thermal Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Tg (DMTA) after 1 hr at 120°C (248°F) Onset | 110 (230); | °C (°F) | — |
| Tg (DMTA) after 1 hr at 120°C (248°F) Peak tan δ | 121 (250) | °C (°F) | — |
| Value | Units | Test Method / Conditions | |
| Density (23°C (73.4°F)) | 1.2 (75) | g/cm³(lbs./ft³) | — |
Technical Details & Test Data
- Recommended Cure Cycle
- Toray E720 can be successfully molded by vacuum bag, autoclave, or matched die molding techniques
- Increase autoclave pressure to 1.4 bar (20 psi) with vacuum applied
- Vent to atmosphere and raise pressure to 6.2 bar (90 psi) (or max allowed by the core material)
- Increase air temperature at 3°C (5.4°F)/min and hold for 1 hour at 120°C (248°F)
- Allow to cool to 50°C (122°F) before removal of pressure
Safety & Health
- Product Safety And Shelf Life
Product Safety:
Observe established precautions for handling epoxy resins and fibrous materials—wear gloves.
Shelf Life:
- Out Life: 60 days at 20°C (68°F)
- Storage Life: 12 months at -18°C (0°F)
Out life is the maximum time allowed at room temperature before cure.
To avoid moisture condensation Following removal from cold storage, allow the prepreg to reach room temperature before opening the polythene bag. Typically, the thaw time for a full roll of material will be 4 to 6 hours.