White Mica Board
White mica board is made by bonding mica paper with silicone adhesive, followed by heating and pressing. The mica content is approximately 90%, with 10% silicone adhesive.
1. Overview of White Mica Board
White mica board is made by bonding mica paper with silicone adhesive, followed by heating and pressing. The mica content is approximately 90%, with 10% silicone adhesive.
2. Product Characteristics of White Mica Board
- HP-5 Rigid White Mica Board: This product is silver-white in color, with a temperature resistance rating of 500°C for continuous use and 850°C for intermittent use.
- HP-8 Rigid Gold Mica Board: This product is gold in color, with a temperature resistance rating of 850°C for continuous use and 1050°C for intermittent use.
- Excellent High-Temperature Insulation: The board can withstand temperatures up to 1000°C, offering good cost performance among high-temperature insulation materials.
- Outstanding Electrical Insulation: The board features a dielectric breakdown voltage of up to 20KV/mm.
- High Flexural Strength and Machinability: It has high flexural strength and excellent toughness, allowing it to be processed into various shapes without delaminating using punching and other machining methods.
- Excellent Environmental Performance: The board is asbestos-free, emitting minimal smoke and odor when heated, and in some cases, is completely smoke- and odor-free.
- HP-5 Rigid Mica Board: This is a high-strength board material that retains its original properties even under high-temperature conditions.
3. Applications of White Mica Board
- Household Appliances: Used in electric irons, hair dryers, toasters, coffee makers, microwave ovens, and electric heaters.
- Metallurgy and Chemical Industry: Used in power frequency furnaces, intermediate frequency furnaces, electric arc furnaces, and injection molding machines in the metallurgy industry.
4. Technical Specifications of White Mica Board
Serial Number | Index Item | Unit | R-5660-T1 | R-5660-T3 | Test Procedure |
1 | Mica Paper | White Mica | Gold Mica | ||
2 | Mica Content | % | ca.88 | ca.88 | IEC 371-2 |
3 | Adhesive Content | % | ca.12 | ca.12 | IEC 371-2 |
4 | Density | g/cm2 | 2.35 | 2.35 | IEC 371-2 |
5 | Temperature Grade | ||||
Under Continuous Use Conditions | ℃ | 500 | 700 | ||
Under Intermittent Use Conditions | ℃ | 800 | 1000 | ||
6 | Water Absorption Rate 24H / 23°C | % | <1 | <2 | GB/T5019 |
7 | Electrical Strength at 20°C | KV/mm | >20 | >20 | IEC 243 |
8 | Insulation Resistance at 23°C | Ω .cm | 1017 | 1017 | IEC93 |
Insulation Resistance at 500°C | Ω .cm | 1012 | 1012 | IEC93 | |
9 | Fire Resistance Rating | 94V0 | 94V0 | UL94 |