Enhanced TDS
Knowde-enriched technical product data sheet
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
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 - - Note
* Thickness tolerance +/- 0.2 mm, other tolerances available on request. 1-4 mm thick sheets supplied in ¼ or ½ sheet size.