The mica plate is designed for water meter columns of high pressure boilers as hydrothermal insulation.
Key parameters and dimensions:
Edged mica is a rectangular plate (plate).
The length of the plates should be no more than 220 mm, the width of the plates - not more than 35 mm.
The nominal dimensions of the plates are set by agreement between the consumer and the manufacturer.
The nominal thickness of the plates is 0.25 mm.
| Item | Unit | 5660-S1 | 5660-S3 | |
| mica paper | muscovite | phlogopite | ||
| Mica content | % | ca.90 | ca.90 | IEC 371-2 |
| Bond content | % | ca.10 | ca.10 | IEC 371-2 |
| Density | g/cm² | ca.1.9 | ca.1.9 | IEC 371-2 |
| Heat Resistant | ||||
| continuous services | °C | 500 | 700 | |
| intermittent services | °C | 800 | 1000 | |
| Heat loss at 500°C | % | < 1 | < 1 | IEC 371-2 |
| Heat loss at 700°C | % | < 2 | < 2 | IEC 371-2 |
| Water absorption | % | < 1 | < 1 | GB/T5019 |
| Dielectric strength | KV/mm | > 20 | > 20 | IEC 243 |
| Flame Resistance | 94V0 | 94V0 | 94V0 |

