Description
YILONG Mica Rolls are industrial-grade insulation materials designed for demanding electrical and high-temperature applications. Made by bonding high-purity phlogopite or synthetic mica paper with high-temperature silicone resin, these rolls offer exceptional tensile strength, long continuous length, and superior thermal and electrical insulation compared with flat mica sheets.
YILONG provides both plain mica rolls and reinforced variants with glass-fiber and/or ceramic-fiber backing, meeting diverse industrial requirements for transformers, motors, high-voltage cables, and furnace insulation.
Features
High Temperature Resistance: Maintains insulation without breakdown for 90 minutes at 950–1000°C and 600–1000V
Electrical Insulation: Excellent dielectric properties suitable for fire-resistant cables
Chemical Stability: Resistant to acids, alkalis, and aging
Environmental Safety: Non-toxic, emits no harmful gases under high temperature
Mechanical Properties: Flexible, high tensile strength, suitable for high-speed cable wrapping
Surface Quality: Smooth, flat, non-adhesive, and easy to handle
Applications
Synthetic mica tape is widely used in fire-resistant and high-temperature insulation for:
Oil platforms and industrial plants
Multi-storey buildings, tunnels, and computer/data centers
Power stations and aerospace facilities
Telecommunication centers, ships, and military installations
Phlogopite Mica Roll
| Item | Unit | YL-5461-PG / PGP / GPG |
| 0.2 mm | 0.3 mm | 0.4 mm | 0.5 mm |
| Length | m | 20m, 25m, 40m, 50m, 100m etc |
| Thickness | mm | 0.2±0.02 | 0.3±0.03 | 0.4±0.03 | 0.5±0.04 |
| Mica Content | g/m2 | 350±10 | 500±20 | 600±20 | 730±20 |
| Breakdown Voltage | kV | >2 | >3 | >4 | ≥5 |
|
|
|
|
|
|
| Synthetic Mica Roll |
| Item | Unit | YL-5461-SG / SGS / GSG |
| 0.2 mm | 0.3 mm | 0.4 mm | 0.5 mm |
| Length | m | 20m, 25m, 40m, 50m, 100m etc |
| Thickness | mm | 0.2±0.02 | 0.3±0.03 | 0.4±0.03 | 0.5±0.04 |
| Mica Content | g/m2 | 350±10 | 500±20 | 600±20 | 730±20 |
| Breakdown Voltage | kV | >2 | >3 | >4 | ≥5 |
|
|
|
|
|
|
| Ceramic Mica Roll |
| Item | Unit | YL-5461-COMBI G / GC |
| 2.1 mm | 2.3 mm | 2.4 mm | 2.5 mm |
| Length | m | 20m, 25m, 40m, 50m, 100m etc |
| Thickness | mm | 2.1 ±0.04 | 2.3±0.1 | 2.4±0.1 | 2.5±0.1 |
| Ceramic Thickness | mm | 2 | 2 | 2 | 2 |
| Mica Content | g/m2 | 190±10 | 300±20 | 420±20 | 480±20 |
| Breakdown Voltage | kV | >4 | >5 | >5 | ≥6 |
According to mica paper and reinforcing material, YL-5461 series of Mica Roll can be divided into:
YL-5461-PG Glass Backed Phlogopite Mica Roll;
YL-5461-GPG Phlogopite Mica Roll with Glass on Both Sides;
YL-5461-PGP Phlogopite Mica Roll with Glass inside;
YL-5461-SG Glass Backed Synthetic Mica Roll;
YL-5461-GSG Synthetic Mica Roll with Glass on Both Sides;
YL-5461-SGS Synthetic Mica Roll with Glass inside;
YL-5461-COMBI G Harmless Ceramic Fiber Backed Phlogopite Mica Roll;
YL-5461-COMBI GC Phlogopite Mica Roll with Harmless Ceramic Fiber and Glass.
Note: Meaning of product code;
R-5461: Rongtai product serial number;
P: Phlogopite;
S: Synthetic mica;
-G: Glass fiber reinforcement;
-COMBI: Harmless ceramic fiber reinforcement