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Mica Tape Category

The Complete Range of Fire-Resistant & HV Insulation Mica Tape

Four engineered grades for every fire-safety and high-voltage application. From BS 6387-certified fire-survival cable tapes, to ultra-pure synthetic tapes for 110 kV systems, to premium PI "gold finger" reinforced tapes for HV motor windings — SZX New Materials supplies every mica tape grade the modern cable and motor engineer needs.

◆ Category Overview
Product Grades4
Temperature Range700–1000°C
Annual Capacity4,000+T/Y
Production Lines4
Slit Width Range10–1000mm
Export Countries30+
◆ Choose by Application:
Our Mica Tape Range

Four Engineered Grades — One Trusted Supplier

Every grade below is manufactured in-house, tested per batch, and packed for global export. Click through for full specifications and TDS.

◆ Series Overview 700–1000 °C Mica tape series - complete range of fire-resistant electrical insulation tape
◆ Full Mica Tape Series

Mica Tape — The Complete Series

The factory-direct overview of our entire mica tape lineup. Four production lines, 4,000+ tons annual capacity, every grade from phlogopite fire-cable tapes to synthetic ultra-pure and PI polyimide premium tapes. Discover our full manufacturing process from raw material to finished export roll — plus the complete list of industry standards and certifications we comply with.

Temperature700–1000 °C
Dielectric> 20 kV/mm
Slit Widths10–1000 mm
CertificationsIEC 60331 · UL94 · RoHS
View Series Details
Fire 750°C BS 6387 Double-sided phlogopite mica tape for fire-resistant cables - BS 6387 certified 750°C fire barrier
◆ Fire-Resistant Cable Tape

Phlogopite Mica Tape

The industry-standard fire-resistant cable tape. Phlogopite mica core + double-sided glass cloth + silicone resin. BS 6387, UL94 V0, RoHS, ELV compliant — for life-safety circuits in buildings, tunnels, subways, and data centers.

Fire Rating750 °C / BS 6387
Insulation> 500 MΩ
Breakdown4.5 kV
Tensile≥ 125 N/15mm
Full Specifications
◆ Ultra-Pure 1000 °C Synthetic mica tape ultra-pure fluorophlogopite for high-voltage HV motors and aerospace
◆ 99%+ Pure Fluorophlogopite

Synthetic Mica Tape

Lab-grown fluorophlogopite — zero iron oxide, zero quartz impurities. Rated for HV systems up to 110 kV. Available in Z-series (glass cloth) and N-series (high-mica). For EV motors, aerospace, MRI machines, and particle accelerators.

Temperature950–1000 °C
Dielectric25–40 kV/mm
HV SystemUp to 110 kV
Purity99%+
Full Specifications
Gold Finger 750–800 °C PI polyimide mica tape - gold finger grade for high-voltage motor and generator windings
◆ Polyimide-Reinforced Premium

PI Mica Tape (Polyimide)

Phlogopite mica + polyimide film (the "gold finger" material). Combines high-voltage dielectric integrity with exceptional flexibility, radiation resistance, and mechanical durability. Standard for HV motor windings, aerospace wiring, and medical equipment.

Temperature750–800 °C
Breakdown> 7 kV/layer
Integrity90 min @ 1000V
Tensile> 120 N/cm
Full Specifications
Side-by-Side Comparison

Which Mica Tape Grade Is Right for Your Application?

Compare all three specialty grades at a glance. Click any column header to see the full product page with complete TDS.

Property PhlogopiteFire Cable SyntheticHV 110kV PI PolyimideMotor Winding
Mica Base Material Natural phlogopiteAmber mica Synthetic fluorophlogopite99%+ purity Natural phlogopiteAmber mica
Reinforcement Layer Double-sided glass cloth Glass cloth / PET film PI polyimide film"Gold finger"
Fire / Service Temp 750 °C ± 50 °C 950–1000 °C 750–800 °C
Dielectric Strength Power-freq ≥ 40 MV/m 25–40 kV/mm > 7 kV/layer
HV System Rating LV / MV cables Up to 110 kV Up to 10 kV motors
Tensile Strength ≥ 125 N/15 mm > 120 N/cm > 120 N/cm
Radiation Resistance Standard Good Excellent
Standard Thickness 0.50 mm ± 0.05 0.08–0.30 mm 0.12 / 0.14 / 0.16 / 0.18 mm
Best for Fire-resistant cables, life-safety circuits HV transformers, aerospace, MRI HV motor windings, EV traction, medical
Relative Cost Most economical Highest Premium
Why SZX Mica Tape

What Sets Our Mica Tape Apart

Every roll comes from a single dedicated manufacturing campus with strict process control, batch-level QC, and fifteen years of export experience.

Four Production Lines

Parallel capacity for standard and custom orders simultaneously — no bottlenecks, shorter lead times.

Batch-Level QC Testing

Fire resistance, dielectric, tensile, and tear tests on every production batch. Full test reports available.

Precision Slitting

Widths from narrow 10 mm tape stock to wide 1000 mm jumbo rolls — precision cutting for your winding equipment.

Export-Ready Packaging

Pallet shrink-wrap, corner protection, HS-code labels, and full export documentation — sea, air, express ready.

◆ Industry Standards & Certifications

Compliant with Global Standards

Our mica tape meets the major international standards for fire safety, electrical insulation, and environmental compliance.

IEC 60331
Cable fire-resistance
BS 6387
British fire cable standard
UL94 V0
Flame retardancy
RoHS 2011/65/EU
Restricted substances
ELV 2000/53/EC
Automotive compliance
ISO 9001
Quality management
Who Uses Our Mica Tape

Trusted Across Electrical & Safety Industries

From life-safety cables in skyscrapers to HV motor windings in power plants — mica tape protects lives and critical equipment.

Fire-Resistant Cables

IEC 60331 / BS 6387 fire-barrier layer

HV Motor Windings

EV traction, power generators, industrial drives

High-Rise Buildings

Life-safety circuits, emergency power

Subway & Tunnels

Metro systems, rail tunnels, highway tunnels

EV Battery & Traction

Battery pack insulation, busbar wrapping

Aerospace & Defense

Aircraft wiring, spacecraft harnesses

Data Centers

Fire-survival power and network cables

Medical Equipment

MRI coil insulation, HV diagnostic devices

Ships & Offshore

Marine SOLAS-compliant fire-survival cables

Frequently Asked

Mica Tape Buyer's Guide

The most common questions from cable manufacturers, motor engineers, and procurement teams evaluating our mica tape range.

For standard fire-resistant cables compliant with IEC 60331 / BS 6387, the industry-standard choice is Phlogopite Mica Tape — specifically our double-sided glass cloth reinforced grade. It offers the best cost-to-performance ratio for life-safety cables in buildings, tunnels, and data centers. For extreme applications (longer circuit integrity, higher voltage), upgrade to PI Mica Tape or Synthetic Mica Tape.
Phlogopite uses natural mica and is most economical — ideal for standard fire-resistant cables. Synthetic uses lab-grown ultra-pure mica (99%+) for demanding HV applications up to 110 kV — aerospace, MRI, and precision equipment. PI (Polyimide) adds polyimide film reinforcement (the "gold finger" material) for maximum mechanical flexibility and radiation resistance — the standard for HV motor windings and aerospace wiring.
Yes. Our precision slitting lines can produce any width from narrow tape-stock (10 mm) up to wide jumbo rolls (1000 mm). Custom widths within each product's range are standard — typical MOQ is 500 kg for custom specifications. Lead time for custom slit widths is 15–20 days.
For standard stock items: MOQ ~500 kg, lead time 3–7 days. For made-to-order production runs: MOQ 500 kg – 1 ton depending on grade, lead time 15–25 days. Rush production available with small surcharge. For ongoing cable manufacturers, we also offer VMI (vendor-managed inventory) arrangements to ensure uninterrupted supply.
Yes. Every shipment includes a batch test report covering fire resistance, dielectric strength, breakdown voltage, tensile strength, and insulation resistance. Third-party laboratory reports available on request. Our manufacturing is ISO 9001 certified. Products meet IEC 60331, BS 6387, UL94, RoHS, ELV, and GB/T 30512 standards. For automotive customers, we have IATF 16949-aligned quality processes.
Rolls are individually wrapped in moisture-barrier plastic, then placed on cardboard cores and boxed, then corner-protected and shrink-wrapped onto fumigated wooden pallets. We ship via sea freight (FCL/LCL), air cargo, and express courier (DHL / FedEx / UPS / TNT). We handle all export documentation including commercial invoice, packing list, certificate of origin, fumigation certificate, MSDS, and REACH/RoHS declarations.

Not Sure Which Mica Tape Grade You Need?

Tell us your application, cable voltage class, and winding equipment — our engineering team will recommend the right grade and quote within 24 hours.

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