Toray E720
- Chemical Family
- Epoxy & Epoxy Derivatives
Toray E720 is a 120°C (248°F) cure toughened epoxy prepreg. E720 offers excellent adhesive properties, allowing direct lamination to honeycomb without the use of a film adhesive. E720 is designed for structural Applicationss in motorsport and marine industries. E720 would also suit general aircraft fittings, sporting equipment, and a wide range of engineering Applicationss. Toray E720 is compatible for co-cure with Toray’s 120°C (248°F) cure resin film MicroPly™ EF72 and syntactic core Toray MicroPly™ SC72A. If fire retardant properties are required, refer to Toray E721-FR. 120°C (248°F) Cure Toughened Epoxy Resin System
Properties
- Physical Form
- Prepreg
Product families
Applications
- Consumer Goods — Sports & Recreation
- Chassis & Brake
- Exterior & Body
- Interior
- Powertrain & UTH
- Equipment & Parts
- Medical Devices & Assemblies
Product Families
- Thermoset Prepregs
Other characteristics
- End Uses
Marine Applications, Medical Devices, Motorsport, Tanks
- Functions
- Prepreg
- Polymer Name
- Epoxy Resins & Compounds
- Processing Methods
- Out of Autoclave Prepreg, Vacuum Bagging
- Markets
- Automotive & Transportation
- Consumer Goods
- Healthcare & Pharma
- Industrial
- Technology
- Composite Materials
- Composites End Use
- Marine Applications
- Medical Devices
- Motorsport
- Tanks
- Material Features
- Good Adhesion
- High Impact Resistance
- 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
- 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
- Recommended Applications
- Sport & Recreation
- Motorsport & Formula 1
- Automotive
- Medical
- Industrial
- Marine industries
- General aircraft fittings
- Wide range of engineering Applicationss
- Composite Materials Functions
- Prepreg
- Composites Processing Methods
- Out of Autoclave Prepreg
- Vacuum Bagging
- Product Safety and Shelf Life
Observe established precautions for handling epoxy resins and fibrous materials—wear gloves.; 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.
Technical data
Table 1 of 2
2 rows| Characteristic | Value | Unit |
|---|---|---|
| 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) |
Table 2 of 2
1 row| Characteristic | Value | Unit |
|---|---|---|
| Density (23°C (73.4°F)) | 1.2 (75) | g/cm³(lbs./ft³) |
