The remarkable properties of high-grade sheet mica as an insulator make it invaluable as a strategic war material, where it is essential for radio tubes, radar equipment, condensers, airplane ...

“Sheet” mica refers to books of mica either mined from hard rock or from loosely consolidated clayey material formed from the weathering. These can be readily split into specific thicknesse ...

Sheet mica is used predominantly in electrical insulation and ground mica has a very wide variety of uses including filler, dusting agent, absorbent, fire insulator, strength enhancer in plastics ...