Technical manual for DIAB Divinycell HT core material, covering properties, machining, and thermoforming guidelines.
The DIAB Divinycell HT manual provides detailed information on the high‑temperature core material used in sandwich constructions. It includes general product descriptions, average physical properties, and technical data charts for the HT grades (HT 50, HT 70, HT 90, HT 110).
The document also gives practical guidance on machining, milling, turning, drilling, and thermoforming processes, with recommended parameters, tooling advice, and dimensional stability considerations to help users achieve reliable results.
| Operating temperature range | -200 °C to +90 °C |
|---|---|
| Maximum processing temperature | 120 °C |
| Coefficient of linear expansion | 35 × 10⁻⁶ / °C |
| Poisson's ratio | 0.32 |
| Nominal density (kg/m³) | 50, 70, 90, 110 |
| Compressive strength (MPa) | 0.7 – 2.1 |
| Dimensional stability (length/width) | ±2 % |
Divinycell HT can be used from –200 °C up to +90 °C.
Feed speed varies from about 3 m/min to 15 m/min depending on the material density.
Length and width may change by up to ±2 % of the original dimension.
It can normally be processed up to 120 °C without dimensional changes.