Industry Challenge: Circuit Integrity Under Fire
- Fire-resistant cables must maintain circuit integrity under fire (IEC 60331 / BS 6387).
- Mica tape is the refractory barrier — it needs high aspect ratio, low iron and high dielectric strength.
- Consistent mesh and grading ensure uniform tape coating and reliable insulation thickness.
Recommended Mineral Specification: Calcined Mica
| Mesh Size | 200 – 325 mesh |
| Dielectric Strength | ≥ 15 kV/mm |
| LOI (Loss on Ignition) | ≤ 0.5 % |
| Fe₂O₃ (Iron) | ≤ 0.5 % (low-iron grade) |
| Thermal Limit | > 1100 °C |
Export Packaging & FCL Loading
- 25 kg / 50 kg PE-lined paper or PP woven bags
- 1,000 kg FIBC jumbo bags on wooden pallets
- 20GP ≈ 18–20 t | 40HQ ≈ 25–26 t, FOB Tianjin Port
Request a Free 500 g Lab Sample
Submit the form below and our technical team will arrange a 500 g mica sample with COA before your container order.