High Temperature Rigid Mica Insulation Sheet

Mica Insulation Sheet Introduction

The rigid mica insulation sheets are high-density laminates crafted for superior thermal and electrical protection. Composed of approximately 90% premium Muscovite or Phlogopite mica and bonded with 10% high-temperature resistant silicone resin, these plates are the gold standard for demanding industrial and household applications.

• Available Thickness: 0.1mm to 100mm (Ultra-thin to Heavy-duty plates)

• Standard Size: 1000*600mm / 1000*1200mm / 1000*2000mm

• Precision Processing: * < 2.0mm: High-speed precision punching.

         > 2.0mm: CNC machining, milling, and drilling to your exact CAD drawings.

Mica Insulation Sheet Properties

1. Excellent thermal resistance, muscovite mica retain insulation properties at 500ºC and phlogopite mica sheet resistant temperature up to 750ºC.

Excellent electric insulation, normally the breakdown voltage is more than 15KV/mm.

3. Excellent flexural strength and easy to be punched and machined.

4. Environmental safe. It is incombustible, asbestos, and halogen free and does not create toxic gases.

Storage of Electrical Mica Sheet:

No limitation under dry and room temperature.
 
Mica Sheet Insulation Types
By the mica paper, resin and properties, mica plates have following types:

Mica insulation sheet can also be manufactured into various high-precision mica tubes, mica gaskets, mica flanges, mica stamping parts and other two-dimensional or three-dimensional mica special products, which are widely used in industries and fields such as steel, metallurgy, petroleum, locomotive, new energy vehicles, military industry, and shipbuilding.

Q: How to choose between Muscovite and Phlogopite mica?

A: Choice depends on temperature and cost. Muscovite (~500-600°C) offers excellent electrical insulation for high-voltage equipment. Phlogopite (~700-900°C) has superior heat stability for high-temperature applications like heating elements. Select based on performance needs and budget.

Q: What post-processing can be done on mica sheets?

A: Mica sheets are mechanically workable. Common post-processing includes punching (for custom shapes, thickness <2mm), CNC machining (for precision parts), and laminating (with other materials for enhanced properties). We offer custom machining based on your drawings.

Q: How does it perform in high-temperature and high-humidity environments?

A: Due to mica's natural structure and high-temperature resin, our sheets perform reliably in harsh conditions. They feature very low moisture absorption, excellent arc and track resistance, preventing leakage and ensuring long-term insulation reliability.