Phlogopite
mica tape.
A cost-effective standard mica tape for fire-resistant cable production.
MICA PAPER / GLASS FABRIC / SILICONE RESINMaterial construction.
Phlogopite mica paper reinforced on one side with non-alkaline glass fabric and bonded with high-temperature resistant silicone resin. The mica forms a heat-resistant dielectric barrier; the glass reinforcement supports smooth, consistent wrapping.
Heat-resistant electrical insulation
High-temperature resistant bonding
Strength and flexibility for processing
Technical specification.
| Property | Unit | P80G32A | P90G32A | P100G32A | P120G32A | P140G32A | P160G32A |
|---|---|---|---|---|---|---|---|
| Nominal thickness | mm | 0.10 ±0.015 | 0.11 ±0.015 | 0.11 ±0.015 | 0.125 ±0.015 | 0.13 ±0.015 | 0.14 ±0.015 |
| Total substance | g/m² | 127 ±11 | 140 ±13 | 148 ±11 | 172 ±11 | 193 ±11 | 216 ±14 |
| Mica content | g/m² | 80 ±5 | 90 ±8 | 100 ±5 | 120 ±5 | 140 ±5 | 160 ±8 |
| Glass content | g/m² | 32 ±3 | 32 ±3 | 32 ±3 | 32 ±3 | 32 ±3 | 32 ±3 |
| Binder content | g/m² | 15 ±3 | 21 ±5 | 16 ±3 | 20 ±3 | 21 ±3 | 24 ±3 |
| Dielectric strength | kV/layer | >1.0 | >1.1 | >1.2 | >1.2 | >1.4 | >1.4 |
| Tensile strength | N/cm | >80 | >120 | >120 | >120 | >120 | >120 |
| Thermal conductivity | W/m°C | 0.2–0.25 | 0.2–0.25 | 0.2–0.25 | 0.2–0.25 | 0.2–0.25 | 0.2–0.25 |
Values from the CTUK technical datasheet. Discuss your cable construction and processing requirements with our team.
Widths and winding formats.
Mica tape is available as pads, traverse-wound spools or step-wound spools, with custom slit widths and winding dimensions. Supply can be arranged from Manchester or directly from our manufacturing partners to suit your order.
Discuss cable-construction optimisation- Width range
- 5–1000 mm
- Core internal diameters
- 76 / 100 / 120 mm
- Winding
- Pads: 300–2000 m. Traverse-wound or step-wound spools: 2000–20,000 m; confirm length and dimensions at quotation.
Standards & application.
The mica layer provides fire-resistant electrical insulation. Temperature resistance: 750–900 °C. Finished-cable fire performance depends on the complete construction and testing.
Performance depends on the complete cable.
Fire-test performance depends on the tape grade, layers, overlap and complete cable construction. Confirm any change through finished-cable testing.