Mica Roll (Muscovite & Phlogopite) for High Temperature Electrical Insulation Applications

product details

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

ItemUnitYL-5461-PG / PGP / GPG
0.2 mm0.3 mm0.4 mm0.5 mm
Lengthm20m, 25m, 40m, 50m, 100m etc
Thicknessmm0.2±0.020.3±0.030.4±0.030.5±0.04
Mica Contentg/m2350±10500±20600±20730±20
Breakdown VoltagekV>2>3>4≥5






Synthetic Mica Roll
ItemUnitYL-5461-SG / SGS / GSG
0.2 mm0.3 mm0.4 mm0.5 mm
Lengthm20m, 25m, 40m, 50m, 100m etc
Thicknessmm0.2±0.020.3±0.030.4±0.030.5±0.04
Mica Contentg/m2350±10500±20600±20730±20
Breakdown VoltagekV>2>3>4≥5






Ceramic Mica Roll
ItemUnitYL-5461-COMBI G / GC
2.1 mm2.3 mm2.4 mm2.5 mm
Lengthm20m, 25m, 40m, 50m, 100m etc
Thicknessmm2.1 ±0.042.3±0.12.4±0.12.5±0.1
Ceramic Thicknessmm2222
Mica Contentg/m2190±10300±20420±20480±20
Breakdown VoltagekV>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

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