Introduction
Mica Board is manufactured by bonding mica paper with organic silicone adhesive, followed by heating and hot pressing. It is a high-performance electrical insulation and thermal insulation material. The available colors are typically gold and white.
What Is Mica Paper and Organic Silicone Adhesive
Mica paper is produced using natural mica as the raw material. It is processed through chemical or mechanical pulping into paper sheets and then slit and rewound into rolls.
Organic silicone adhesive refers to a compound made from silicone rubber, silicone oil, silicone resin, along with fillers and various additives. It can be formulated as either a single-component or two-component adhesive system.
Product Characteristics
HP-5 rigid white Mica Board is a high-strength insulating sheet with a silver-white appearance. It has a continuous operating temperature rating of 500°C and can withstand short-term exposure up to 850°C.
HP-8 rigid gold Mica Board has a golden appearance. It offers a higher thermal resistance, with a continuous operating temperature of 850°C and short-term resistance up to 1050°C.
Mica Board provides excellent high-temperature insulation performance and can withstand temperatures up to approximately 1000°C in certain applications. Among high-temperature insulating materials, it offers a very competitive cost-performance ratio.
It also features excellent electrical insulation properties, with standard dielectric breakdown strength reaching up to 20 kV/mm under typical conditions.
HP-5 rigid Mica Board is a high-strength sheet material that can maintain its original performance even under high-temperature working conditions.
Application Areas
Household Appliances
Electric irons, hair dryers, microwave ovens, electric heaters, and other heating appliances.
Metallurgy and Chemical Industry
Power frequency furnaces, medium frequency furnaces, arc furnaces, and injection molding machines used in metallurgical processes.
Industrial Electronics
Electron tubes, transformers, capacitors, and other electrical and electronic components.
New Energy Industry
Solar energy systems, wind power equipment, and electric vehicle battery packs.
Mica Board is widely used across industries that require high-temperature resistance and reliable electrical insulation performance. For further technical details, product specifications, or customized solutions, please feel free to contact YILONG. Our engineering team is ready to assist you with material selection and application support.
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Mica Board is manufactured by bonding mica paper with organic silicone adhesive, followed by heating and hot pressing. It is a high-performance electrical insulation and thermal insulation material. The available colors are typically gold and white.
Mica Paper is widely recognized as a “core material” in high-temperature electrical insulation applications. With its outstanding thermal resistance, electrical insulation performance, and stable chemical properties, it plays a critical role in modern electrical, industrial, and high-tech engineering systems.
In the field of non-standard component manufacturing, material selection often defines the performance limits and application scope of the final product. As a high-performance electrical insulation material, Mica Board is bringing breakthrough solutions to custom-engineered parts across multiple industries due to its outstanding heat resistance, electrical insulation performance, and mechanical stability.
Epoxy Glass Sheet is manufactured using electronic-grade alkali-free fiberglass fabric impregnated with epoxy resin and other modified materials, followed by high-temperature and high-pressure lamination. Epoxy Glass Sheets feature excellent electrical insulation, flame retardancy, high temperature resistance, and strong mechanical performance.
FR-4, which we commonly refer to in the PCB industry, is not actually a specific material name. It is a flame-retardant grade designation.
Phenolic Cotton Cloth Laminate is manufactured by impregnating cotton fabric with phenolic resin, followed by curing under heat and pressure. It is classified as a Thermal Class E insulating material and provides excellent mechanical properties, oil resistance, and reliable dielectric performance.
Epoxy Sheets are widely used in electrical and electronic applications due to their excellent combination of heat resistance, corrosion resistance, wear resistance, light weight, and electrical insulation properties.
Bakelite sheet, also known as Phenolic Paper Laminated Sheet, is manufactured using high-quality bleached wood pulp paper and cotton linter paper as reinforcing materials. These substrates are impregnated with phenolic resin produced from high-purity synthetic petrochemical raw materials and then processed through heat and pressure lamination.
Electrical resistance is the reciprocal of conductance, and resistivity refers to the resistance per unit volume of a material. The lower the conductivity of a material, the higher its resistance. For Electrical Insulation Materials, higher resistivity is always preferred. A higher resistivity indicates better insulation performance and lower leakage current under electrical stress.
If you're struggling to choose among various electrical insulation materials, this guide compares five commonly used laminated insulation sheets: 3240 epoxy sheet, FR4 Fiberglass Sheet, Bakelite Sheet, Phenolic Cotton Cloth Laminate, and Phenolic paper laminate, helping you quickly identify the most suitable material for your application.
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