Mica Sheets

Mica Sheets
Mica Sheets

Mica sheets, also known as laminated mica sheets, are made of layers of muscovite (or phlogopite) paper and silicone (or epoxy) that are heat-pressed and processed to form a flat and uniform thickness.

Mica flakes possess excellent electrical, thermal and mechanical properties, making them ideal materials for a wide range of industrial and scientific applications.

Mica sheets can be processed into various insulating components, including gaskets, gaskets, covers and seals, we provide mica sheets in various sizes and styles for you to choose from, in stock and ready to ship, please contact us now.

Common mica sheets

Flexible Mica Sheets is one popular insulation material with multiple layers of phlogopite/muscovite mica paper with high-temperature silicone resin, it’s bendable and high-tensile strength to be punched to insulation gaskets or mats for appliances and furnaces.

Features of flexible mica sheet:

  • Flexible and high-tensile strength, most popular thickness 0.5~1.0mm, will be punched to heating protect mat, washers and insulation sealing parts.
  • Excellent thermal resistance, muscovite mica resist 500~700℃, Phlogopite mica resists 750~850℃, Synthetic/Muscovite Calcined mica resist more than 1000℃, most popular phlogopite mica sheet are used in the furnace.
  • Excellent electric insulation, normally the breakdown voltage is more than 16KV/mm.
  • Different flexible can be customized for different use. 
  • Customized mica sheet inserts with glass-fiber cloth, and stainless steel woven are available for special demand.
  • Eco-friendly and non-asbestos.

Application of flexible mica sheet:

  • The flexible mica sheet can be bent and punched according to the CAD design. The elastic mica sheet mat is very suitable as an insulating mat for equipment, such as microwave ovens, and toasters.
  • The flexible mica sheet can be cut into strips and rolled into the sealing element, and the perfect expansion performance makes the sealing joint, which can maintain good performance even at high temperatures, such as automobile exhaust pipes.
  • Flexible phlogopite sheets are resistant to high temperatures above 800°C and are widely used in induction, arc, and high-frequency furnaces. Mica sheets can also be combined with other materials to achieve multi-functions and use according to customer needs, such as ceramics.

Rigid Mica Sheets are also named Mica Board, Mica Plate, which are made of appr 90% Muscovite(or Phlogopite) and 10% silicone (or epoxy) resin by heating pressing process. Mica sheets provide excelent high-voltage electrical insulation at high-temperature.

Features of Rigid Mica Sheet:

  • Excellent thermal resistance, muscovite mica resist 500~700℃, Phlogopite mica resist 750~850℃, Synthetic/Muscovite Calcined mica resist more than 1000℃.
  • Excellent electric insulation, normally the breakdown voltage is more than 16KV/mm.
  • The rigid mica sheet has a tight structure without air bubbles or holes, Stamping high flexural strength, smooth cutting edge.
  • Excellent mechanical strength, Double heating pressing time ensures extremely high density for over-thick mica board, it’s suited for sawing, drilling, grinding, laser, and waterjet cutting.
  • Mica sheet is distributed evenly, with no impurity, and color and luster are beautiful.
  • One-time formed 3D shape by mold tool is available.
  • Eco-friendly and non-asbestos.

Rigid mica sheet application:

  • Mica board has excellent mechanical strength and is suitable for precision/accurate sawing, drilling and grinding with high-performance tools, and can be used as an insulating element for high-temperature and high-pressure equipment.
  • Insulation can be made into heating element cards, gaskets, partitions, or covers. Such as hair dryer heating wire brackets and so on.
  • Widely used in heating household appliances, equipment, electric furnaces, motor insulation, transformer power generation and distribution, electric/hybrid vehicles, etc.
  • 3D shaped mica protective cover can be provided, which can be molded at one time through the mold.
Muscovite Mica Sheet
Muscovite Mica Sheet

Muscovite is a silicate mineral that contains large amounts of sodium, aluminum, and silicon and is usually white or off-white. It has good insulating properties and heat resistance, so it is often used in the manufacture of electrical insulation materials and high-temperature refractory materials.

Phlogopite Mica Sheet​

Phlogopite Mica Sheet
Phlogopite Mica Sheet

Phlogopite is a mica mineral that contains metal elements such as copper, silver, gold, tungsten, and lithium. Its physical properties are very stable, so it is widely used in electronic components in special environments such as high temperature, high pressure, and high frequency.

Synthetic Mica Sheet

Synthetic Mica Sheet
Synthetic Mica Sheet

Synthetic mica board is a kind of artificially manufactured mica board, due to its unique structure and chemical composition, it has good mechanical properties, corrosion resistance, heat resistance and insulation properties. Synthetic mica board is usually used in the manufacture of refractory materials, electronic components, high-temperature seals, high-voltage cables and motor insulation, etc.

Specifications of mica sheet




Standard size


Rigid Mica Sheet



1000*2400mm, 1000*1200mm, 1000*600mm

Excellent flexural strength to punch to mica part for high strength framework of heating, electric heating appliance & equipment

Flexible Mica Sheet

HP5(HP5M-1, HP5P-1, HP5S-1)


1000*2400mm, 1000*1200mm, 1000*600mm

Easy to winding or wrapping, for heating elements, furnace protection

Over thick Mica Sheet

HP5-G (HP5M-G, HP5P-G)


1000*2400mm, 1000*1200mm, 1000*600mm

High density, mechanical strength, suitable for sawing, drilling, grinding, and even by waterjet cutting method

Low Smoke Mica Sheet

HP5-L (HP5M-L, HP5P-L)


1000*2400mm, 1000*1200mm, 1000*600mm

Low smoke and blister-free for FDA heating elements resist high-temperature, like food toasters, microwave oven

Mica Sheet in Roll




Special designed Flexible Mica Sheet in Roll. That is very convenient for furnace use and industrial demand.

Special Mica Sheet

HP5-S (HP5M-S, HP5P-S)


1000*2400mm, 1000*1200mm, 1000*600mm

Insert strength material (steel sheet, woven), get extremely flexible toughness, mechanical strength, the special function for industrial use.

M – Musvocite), P – Phlogopite, S – Synthetic, L – Low Smook and blister-free, G – High Resin, High Strength

Welcome the customized design and inquiry.

How to make a mica sheet?

The laminate mica sheet production steps are as follows:

  • Gluing high-quality muscovite mica paper, phlogopite mica paper, or synthetic mica paper with high-temperature silicon resin.
  • Heating press the mica paper to mica sheets.
  • Cutting the mica sheets to size: 1000*600mm, 1000*1200mm, 1000*2400mm

Mica Sheet Packing & Delivery

Mica sheets are packed by PE film, carton box, each box is about 50kgs.

Then about 20 carton boxes/1000kgs mica sheets were fixed in wooden pallets (Size: 1200*1000mm) for ocean transport

Then we have our own truck to send the products directly to Shenzhen Port, Shanghai port…


mica sheet packing

Send us inquiry

Send us your demand detail by message here, we will get back to you within 24 hours. thanks.