The motherboard is made of mica paper and organic silica gel, which is bonded, heated and pressed. The content of mica is about 90%, and the content of organic silica gel is 10%.
Product characteristics HP-5 rigid Muscovite board. The product is silver-white, temperature-resistant grade: under continuous use conditions, temperature-resistant 500 degrees Celsius, intermittent use conditions, temperature-resistant 850 degrees Celsius;  · HP-8 rigid mica plate. The product is golden, temperature-resistant grade: under continuous use conditions, 850 temperature-resistant, intermittent use conditions, 1050 temperature-resistant. Excellent high-temperature insulation performance, the highest temperature resistance as high as 1000 C, in high-temperature insulation materials, has a good cost-effective. · With excellent electrical insulation performance, the breakdown resistance of common products is up to 20KV/mm. HP-5 rigid mica plate is a kind of high strength plate Mica plate It is widely used in the following fields: application area Household appliances: electric iron, hair dryer, toaster, coffee pot, microwave oven, electric heater, etc. Metallurgical and chemical industry: power frequency furnace, intermediate frequency furnace, electric arc furnace, injection moulding machine, etc. in metallurgical industry.