| Answer | Crossword Clue |
|---|---|
| TAPE | Wire insulator |
| ASBESTOS | Insulator |
| MICA | Popular insulator |
| IONIC | .. compound (electrical insulator) |
| MICA | Silicate used as an insulator |
| MICA | Mineral used as an insulator |
| RIQKVFSNVX | High-frequency insulator diffused cold (10) |
| MUSCOVITE | Mica that's used as an electrical insulator |
