Description
Heat Resistant Mica Board, constructed of muscovite or phologpite mica paper with silicon resin.They are known by its excellent thermal resistance, good flame resistance, high dielectric strength, excellent physical strength,and little smoke by heating.
The products have been widely used in the industries of household electric appliances (clothes irons, hair dryers, toasters,kettles, cooking appliances, microwave ovens, air heaters), metallurgy (frequency furnace, intermediate frequency furnace, arcfurnace), medical appliances, etc.
The mica Sheet materials we provide: phlogopite mica board, white mica board, synthetic mica board
Customization ability: thickness 0.3mm-50mm
Custom sizes and thickness are available upon request to fit specific industrial applications. Contact us for a personalized quote based on your requirements.
Regular size: 1M*1M2
Special process: We can make very thickSheets, and laminate the mica boards by controlling the temperature of the press.
| Type | Overthick Rigid Muscovite Sheet (CD567M) | Overthick Rigid Phlogopite Sheet (CD567P) | Test Standard |
|---|---|---|---|
| Mica content % | ≥88 | ≥88 | IEC371 |
| Bond content % | ≤12 | ≤12 | IEC371 |
| Density g/cm³ | 2.0 - 2.25 | 2.0 - 2.25 | IEC371 |
| Heat Resistance - Continuous°C | 500 | 600 | -- |
| Heat Resistance - Intermittent°C | 700 | 800 | -- |
| Heat!oss - At 500°C% | ≤1.0 | ≤1.0 | IEC371 |
| Heat!oss - At 700°C% | ≤2.0 | ≤2.0 | IEC371 |
| Water Absorption 24h / 23°C% | ≤1.0 | ≤1.5 | GB/T5019 |
| Dielectric strength Kv/mm | >15 | >15 | IEC243 |
| Volume Resistivity - 23°C Ω.cm | >10^17 | >10^17 | IEC93 |
| Volume Resistivity - 500°C Ω.cm | >10^12 | >10^12 | IEC93 |
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FAQ
Q: 1. What temperature can a heat resistant mica board withstand?
A: The maximum working temperature depends on the mica type. Phlogopite mica boards are typically used at temperatures up to 800°C, while Muscovite mica boards are generally suitable for applications up to 500°C. The actual performance also depends on operating conditions and installation design.
Q: 2. Is mica board electrically insulating?
A: Yes. Mica board combines high dielectric strength with excellent heat resistance, making it a common insulation material for heating equipment, electrical appliances, and industrial thermal systems.
Q: 3. Can mica board be machined into custom shapes?
A: Yes. Mica boards can be cut, punched, drilled, milled, or CNC-machined according to customer drawings. Custom dimensions, holes, slots, and complex profiles can be produced for specific applications.
Q: 4. What is the difference between mica board and ceramic insulation materials?
A: Mica board is generally easier to machine and less brittle than ceramic materials. It also offers good electrical insulation and thermal resistance while allowing more flexibility in fabrication and assembly.
Q: 5. Is mica board suitable for heating elements?
A: Yes. Mica board is widely used as a support and insulation material in band heaters, strip heaters, electric irons, hair dryers, toasters, and other heating equipment where both thermal and electrical insulation are required.
Q: 6. Does mica board contain asbestos?
A: No. Modern industrial mica boards are asbestos-free and comply with current environmental and safety requirements.
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