| Answer | Crossword Clue |
|---|---|
| TARPAPER | Insulating material. |
| OKONITE | Insulating material. |
| FRICTIONTAPE | Insulating adhesive material |
| THERMAL | Insulating |
| MICA | Insulating silicate |
| MICA | Insulating mineral |
| BUSHING | Insulating liner |
| SPAGHETTI | Insulating tubing |
| ASB | Old insulating mat'l. |
| UVALUE | Measure of insulating ability |
| PVC | Insulating resin, for short |
| MICA | Makeup of some insulating sheets |
