Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
Features & Benefits
- Product Highlights
- Outstanding toughness, open hole, and compression after impact (CAI) properties
- Excellent hot/wet strength retention
- Robust processing and low voids under vacuum bag only cure pressure
- Long out time and out life for extended shop floor handling
- Tackand handling qualities are well-suited to both automated and hand lay-up methods
- Can be processed with initial cure at 135°C (275°F), followed by freestanding post cure at 180°C (356°F), increasing process flexibility and tool material options
- Exceptional fracture toughness
Applications & Uses
- Markets
- Composites Processing Methods
- Recommended Applications
- Launch
- Aerostructures
- Thick parts cured under low pressure
- Honeycomb stiffened parts
- Automated and hand lay-up fabrication processes
Properties
- Physical Form
- Thermal Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Dry Tg (DMA) with 180°C (356°F) cure | 201 (394) | °C (°F) | — |
| Value | Units | Test Method / Conditions | |
| Collected Volatile Condensable Material (CVCM) | 0.01 | % | — |
| Resin Density | 1.18 | g/cc | — |
| Total Mass Loss (TML) | 0.83 | % | — |
| Water Vapor Recovered (WVR) | 0.75 | % | — |
Technical Details & Test Data
- Curing Method
- Properly prepare the tool surface with release coat or film.
- Lay-up part using standard debulking procedures.
- Dam the edges of the part for cure.
- Place one ply of porous Teflon® or perforated Teflon onto the bag surface of the part
- Place bleeder layers over the porous Teflon material and trim to the part periphery.
- Place a non-porous layer of Teflon over the part.
- Utilize a breather cloth to assure a clear path for vacuum.
- Install vacuum bag on the tool for cure.
- Follow the provided Toray Advanced Composites cure cycle for the particular resin system.
Storage & Handling
- Shelf Life
- Out Life: Up to 28 days at ambient
- Frozen Storage Life: 12 months at -18°C (< 0°F)
Out life is the maximum time allowed at ambient temperature before cure. *Ambient is 18–22°C (65–72°F)