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Mica muscovite sheet
Natural mica flakes is a kind of natural high temperature insulation material which can be used for long-term purposes in an environment of 600 ℃. It has good mechanical properties, excellent heat resistance (500 ℃) and electrical insulations, high volume resistivity and good dielectric loss. When being processed or stamped, it can resist flaking, fracturing, deformation, etc. The most commonly used natural mica is natural mica spacer. Generally, high-quality thick natural mica flakes are selected; after splitting, thickness definition, cutting, and stamping, mica products of a certain thickness and shape will be formed. Natural mica spacer is widely used in the high-temperature insulation of electronic tubes, electric soldering irons, capacitors, sound systems, electrical equipment, metallurgical industry and other electric heating elements. Because it is a natural material with no pollution, good insulation and high voltage resistance, it can not be substituted by other products. We can manufacture various stamped parts in accordance with customers' demands and drawings in large scales with lowest cost and best quality. Your callings for inquiry are warmly welcome.
In addition, we also provide premium Grade A natural micas at the lowest prices which are devoted to being used in such high-purity mica products as optical lens, fire observation glasses, observation windows, high temperature mica flakes for water level meters, mica flakes for liquid level meters, and etc. and all these products require pure surface, good appearance, no impurities, no knife marks, no scratches, no bubbles, and no sand holes. They are also applicable to large-scale power plants, boiler plants, metallurgy and other industries that require higher technical standards.
According to natural mica splittings' quality, mica splittings can be divided into Grade A, B and C and each grade can be further divided into No. 3 to No. 9 roughly based on its approximate area. The most commonly seen natural mica spacers' thicknesses include 0.1 mm, 0.15mm, and 0.2mm. Following are mica product's parameters:
| Properties | Muscovite natural flakes | Muscovite natural flakes |
| Thickness(mm) | 0.1 | 0.15 |
| Average thickness tolerance(mm) | ±0.03 | ±0.03 |
| Gravity(g/cm3) | 1.9-2.0 | 1.9-2.0 |
| 500℃ heating loss（%） | ≤1.5 | ≤1.6 |
| Flexural strength (kg/m㎡) | ≥16 | ≥16 |
| Operating temperature(℃) | ≥500 | ≥500 |
| Breakdown voltage(KV/mm) | ≥22 | ≥22 |
| High-temperature insulation resistance (MΩ) | 100-600 | 100-600 |
