Mica-its future as electrical insulation

During the past 8 years, mica has lost ground in its usage growth as compared to the total electrical insulation market. However, this loss has not been to materials that have superior electrical insulating properties but rather in applications which did not need the properties of mica. There is no product on the market that has the voltage endurance and corona resistance of mica. Combine these properties with the high temperatures and capability and superior dielectric strength of mica and for real heavy duty applications mica is the preferred insulation.