DUWAI High-Temperature Resistant Mica Board for Superior Electrical Insulation
High-temperature mica board resists up to 1000°C, offers 20KV/mm dielectric strength, excels in flexural strength, machinability, and is asbestos-free with minimal smoke.
1. High-Temperature Resistant Mica Board Product Introduction
- High-Temperature Insulation: The high-temperature resistant mica board offers excellent insulation performance, with a maximum temperature tolerance of up to 1000°C. It provides a good cost-performance ratio among high-temperature insulation materials.
- Electrical Insulation: The board has outstanding electrical insulation properties, with a dielectric breakdown voltage of up to 20KV/mm.
- Mechanical Strength and Machinability: The board features excellent flexural strength and machinability. It is highly resilient and can be processed into various shapes using lathes, milling machines, and drills without delaminating.
- Environmental Performance: The board is asbestos-free, emits minimal smoke and odor when heated, and is even smoke- and odor-free in some cases.
2. High-Temperature Resistant Mica Board Technical Specifications
| Serial Number | Index Item | Unit | R-5660-T1 | R-5660-T3 | Test Procedure |
| 1 | Mica Paper | 白云母 | 金云母 | ||
| 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 |
