Mica plates for instrument -making are made from muscovite mica, that are represented by squared shape plates, without internal holes, and have specified dimension and thickness. The plates are designed for use in optical, vacuum and radiotechnical equipment and devices.

| Mica plates for instrument-making are made in the following grades: |
| SOV – mica for optical and vacuum devices SP – mica for radio engineering SMA – mica for attenuators SK – mica for valves SMGP – mica for generator devices SSP – mica for special gaskets SEP – mica for vacuum tubes |
Product dimensions are determined as agreed by a manufacturer and a customer.