Knowde Enhanced TDS
Identification & Functionality
- Core Type
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Foam for Vacuum Infusion Processes
ROHACELL® RIST-HT (heat treated) is closed-cell rigid foam based on polymethacrylimide (PMI) chemistry that is completely free of CFC’s and specially developed for use as a structural core in connection with vacuum infusion processes. All RIST-HT products are heat treated before delivery to customers.
Its mechanical and thermomechanical properties are similar to those of ROHACELL® WF. Its cell size, however, represents an optimal compromise between low resin uptake – about 50% less than for ROHACELL® WF – and satisfactory bonding of the facings to the core.
- Thermoforming and Shaping
- ROHACELL® RIST-HT can be easily thermoformed or CNC machined to meet customer requirements.
- High precision, pre-shaped and ready-to-use foam cores in complex or simple geometries can also be supplied by the ROHACELL® Shapes Department.
Applications & Uses
- Composites Processing Methods
- Processing and Production
The optimized cell structure of ROHACELL® RIST-HT makes it particularly suitable for vacuum infusion and RTM processes, where it can be used at temperatures up to 180°C (356°F) with pressures up to 0.7 MPa (102 psi).
Properties
- Typical Properties
- Note
* Thickness tolerance +/- 0.2 mm, other tolerances available on request. 1-4 mm thick sheets supplied in ¼ or ½ sheet size.
| Value | Units | Test Method / Conditions | |
| Density | 52 - 110 | kg/m³ | ISO 845 |
| Compressive Strength | 0.8 - 3.6 | MPa | ISO 844 |
| Tensile Strength | 1.6 - 3.7 | MPa | ISO 527-2 |
| Tensile Modulus | 75 - 180 | MPa | ISO 527-2 |
| Elongation (at Break) | 3.0 | % | ISO 527-2 |
| Shear Strength | 0.8 - 2.4 | MPa | DIN 53294 |
| Shear Modulus | 24 - 70 | MPa | DIN 53294 |
| Coefficient of Thermal Expansion | 3.18 - 3.45 | 1/K*10E-5 | — |
| Standard Sheet Thickness* | 1 - 140 | mm | — |