Thick mica plate
Product Category:
Mica Plate
Keywords:
Yuefeng Mica
- Description
-
- Commodity name: Thick mica plate
Superior Structural Strength ：With a thickness of 3mm or more, it has high bending strength (≥120MPa), can withstand heavy loads and vibrations without deformation, and can be used as a reliable spacer or baffle plate in large machinery.
Enhanced Heat Resistance ：Remains stable at continuous operating temperatures of 400°C to 1000°C (depending on the mica type), superior to thinner sheets in extreme high-temperature environments such as kilns and foundry equipment.
High Electrical Insulation ：Dielectric strength of 15-30kV/mm, suitable for medium and high voltage (10kV-50kV) systems, effectively preventing arcs and short circuits in power distribution equipment.
Flame Retardancy ：Classified as non-combustible material according to UL94 V-0 standard, it is flame retardant and does not release toxic fumes, ensuring the safety of enclosed industrial sites.
Excellent Dimensional Stability ：Low coefficient of thermal expansion (≤7×10⁻⁶/°C) minimizes warping under temperature fluctuations and maintains precise fit during long-term use.
Chemical and Moisture Resistance ：Resistant to oil, weak acids and alkali corrosion, moisture absorption rate ≤1.0%, ensuring service life in humid or industrial environments.
Specifications
Thickness ：3mm-20mm, customizable options to meet specific insulation and structural requirements.
Sheet Size ：Standard size range is 400×400mm to 1200×1200mm; can be customized cutting according to the integration needs of large equipment.
Density ：1.8-2.3g/cm³, balancing strength and weight in heavy-duty applications.
Resin Type ：Silicone resin, with the highest high-temperature resistance (up to 1000°C); epoxy resin, cost-effective performance at moderate temperatures (up to 500°C).
Application Areas
Industrial Furnaces ：Used as insulation lining, door seals and heat shields for high-temperature furnaces, protecting structural components from extreme high temperatures and reducing energy loss.
Large Transformers and Generators ：Used as a thick insulating layer between windings and core structures, providing both electrical insulation and mechanical support in power generation equipment.
Heavy Machinery ：Used as insulating spacers in hydraulic systems, large motors and mining equipment, where durability and vibration resistance are critical.
Nuclear Power and Energy Facilities ：Used in high-voltage switchgear and reactor components, capable of withstanding the harsh conditions of nuclear power plants and thermal power systems.
Aerospace and Defense
Unit UTM - M (Ultra-Thick White Mica Mica Sheet) UTM - P (Ultra-Thick Phlogopite Mica Sheet) Test Method Mica Paper / Muscovite Phlogopite / Mica Content % ≥90 ≥90 IEC 60371 - 2 Binder Content % ≤10 ≤10 IEC 60371 - 2 Density g/cm³ 2.0 - 2.35 2.0 - 2.35 IEC 60371 - 2 Temperature Resistance (Continuous Use) ℃ 500 750 / Temperature Resistance (Intermittent Use) ℃ 700 900 / Heat Loss at 500℃ % ≤3.5 ≤3.5 IEC 60371 - 2 Heat Loss at 700℃ % ≤2 ≤2 IEC 60371 - 2 Bending Strength MPa >200 >200 GB/T 5019.2 Compressive Strength MPa >300 >300 Internal Standard Water Absorption % <1 <1 GB/T 5019.2 Electrical Strength kV/mm ≥15 ≥14 IEC 60243 - 1 Flammability Rating / UL94 V - 0 UL94 V - 0 UL94 Volume Resistivity Ω·cm >10¹⁷ (23℃), >10¹² (500℃) >10¹⁷ (23℃), >10¹² (500℃) IEC 60093 Thickness Range mm 2 - 150（Tolerance: 2 - 7 mm ±8/-6%; 8 - 30 mm ±7/-5%; 31 - 150 mm ±5/-3%) 2 - 150（Tolerance: 2 - 7 mm ±8/-6%; 8 - 30 mm ±7/-5%; 31 - 150 mm ±5/-3%) Technical Parameters
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Company Address: Wushi Industrial Park, Xingwang Road, Pingjiang High-tech Industrial Park, Wushi Town, Pingjiang County, Hunan Province
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