Mica washers are made of rigid mica sheets, including muscovite mica sheets and phlogopite mica sheets. by cutting or punching processing. The mica plate is made of mica paper and organic silicone water bonding, heating, pressing, in which the mica content is about 90%, organic silicone water content is about 10%. Commonly used mica boards are divided into white cloud mother board and phlogopite board, Muscovite and phlogopite have good electrical and mechanical properties, good heat resistance, chemical stability and corona resistance. The electrical property of Muscovite is better than that of phlogopite, but the phlogopite is softer and better in heat resistance.
Mica washer are widely used as industrial insulation parts.
