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MICA Fire Protection is used in the manufacturing of any size of commutators. MICA Fire Protection consists in rigid muscovite mica sheets impregnated with a specific epoxy resin. This epoxy mica material is sanded to reach precise thickness with low tolerance. This material is 100% free of toxicity: you don’t need any specific protection.
Typical Physical Properties
| Property (Unit) | Test Method | MICA – FP |
|---|---|---|
| <b>Colour</b> | Visual | Dark Gray |
| <b>Thicknesses (mm)</b> | – | 0.5 – 2 |
| <b>Density (g/cm³)</b> | – | 2.2 |
| <b>Heat Resistance:</b><br>- Continuous Services (°C)<br>- Intermittent Services (°C) | <br>-<br>- | <br>700<br>1000 |
| <b>Heat Loss:</b><br>- @500°C<br>- @700°C | <br>-<br>- | <br>< 1%<br>< 2% |
Electrical and Mechanical Information
| Property (Unit) | Test Method | MICA – FP |
|---|---|---|
| <b>Composition Muscovite MICA (%)</b> | – | > 88 |
| <b>Silicone Binder Content (%)</b> | – | < 12 |
| <b>Flexural Strength (Mpa)</b> | – | 140 |
| <b>Dielectric Strength 20°C (KV/mm)</b> | – | 10 |
| <b>Water Absorption 23°C/24h (%)</b> | – | < 1 |
| <b>Flame Resistance</b> | – | 90 V-0 |
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