Fire 750°C

◆ BS 6387 ◆ UL94 V0 ◆ RoHS · ELV

Double-sided phlogopite mica tape for fire-resistant cables - BS 6387 certified 750°C fire barrier

◆ Mica Tape Series

Double-Sided Phlogopite Mica Tape — 750°C Fire-Resistant Cable Tape

Engineered specifically for fire-resistant cables. Phlogopite mica paper core + double-sided glass fiber cloth + silicone resin binder. Delivers BS 6387-compliant circuit integrity under direct flame — buying critical time for evacuation and emergency systems.

750°C

Fire Resistance

>500MΩ

Insulation Res.

≥125N/15mm

Tensile Strength

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Product Overview & Construction

What Is Double-Sided Phlogopite Mica Tape?

A high-performance fire-resistant insulation tape engineered for the fire safety of electrical wires and cables. The three-layer laminated construction combines thermal survival, dielectric integrity, and mechanical robustness in a single tape.

Phlogopite mica tape is a high-performance fire-resistant insulation material engineered specifically for fire safety in electrical wires and cables. It's built on a foundation of selected phlogopite mica paper, reinforced on both sides with glass fiber cloth, bonded together with a high-temperature silicone resin binder, and finished through baking, pressing and precision slitting.

This three-layer construction ensures that cables maintain circuit integrity during fires — buying critical time for personnel evacuation and keeping emergency equipment (fire pumps, emergency lighting, smoke extraction) operating when it's needed most.

It's wrapped around the conductor (copper core) as the fire-resistant barrier layer between the core and the outer cable sheath, delivering the circuit integrity required by BS 6387 and similar international fire-survival cable standards.

◆ Three-Layer Construction

Top Layer

Glass Fiber Cloth Reinforcement

Mechanical strength · Protects against tearing during winding

Core Layer

Phlogopite Mica Paper

Fire-resistant barrier · >75% mica content · 750 °C rated

Bottom Layer

Glass Fiber Cloth Reinforcement

Dual-side backing for tensile strength ≥125 N/15mm

Bonding Agent

Silicone Resin Binder

High-temp adhesive · Bonds all three layers permanently

🔥 Why Double-Sided Reinforcement: Single-sided mica tapes often tear under high-speed cable winding. Our double-sided glass cloth design delivers ≥125 N/15mm tensile strength — enabling fast, non-stop cable production without breakage.

Product Features

Five Properties That Define a Premium Fire-Resistant Tape

Every property below is tested per batch in our QC laboratory. Full test reports available on request.

◆ 01

Outstanding Fire Resistance

Maintains structural and insulation function at elevated temperatures (750 ± 50 °C). Complies with BS 6387 and similar international fire-resistant cable standards.

◆ 02

High Electrical Insulation

High insulation resistance (>500 MΩ) and 4.5 kV breakdown voltage — effectively protecting circuit safety under normal operating conditions.

◆ 03

High Mechanical Strength

Reinforced tape with tensile strength ≥125 N/15 mm, suitable for high-speed winding operations — minimizing breakage during cable production.

◆ 04

Excellent Flame Retardancy

UL94 V0 flame retardancy rating — the material effectively stops flame propagation and self-extinguishes when the ignition source is removed.

◆ 05

Safe & Environmentally Friendly

Low smoke output at high temperature. Asbestos-free. Compliant with RoHS (2011/65/EU) and ELV (2000/53/EC) directives — friendly to environment and health.

Technical Data Sheet

Double-Sided Phlogopite Mica Tape · Full TDS

Complete technical specifications with associated testing standards. Every parameter is verified per production batch in our in-house QC laboratory.

Double-Sided Phlogopite Mica Tape

◆ Technical Data Sheet · Rev. 2025

◆ Fire Resistant

Model / Type

Double-Sided Phlogopite Mica Tape

—

Thickness

0.50 mm ± 0.05 mm

—

Mica Content

> 75 %

GB/T 5019.2-2009

Insulation Resistance

> 500 MΩ

GB/T 10064-2006

Breakdown Voltage

4.5 kV

GB/T 5019.2-2009

Power-Frequency Dielectric (20°C)

≥ 40 MV/m

GB/T 5019.2-2009

Volume Resistivity (20°C)

≥ 1.0×10¹⁰ Ω·m

GB/T 5019.2-2009

Water Absorption

≤ 10 %

ISO 62-2008

Fire Resistance

750 °C ± 50 °C

BS 6387:2013

Flame Retardancy

UL94 V0

Bond Strength

≥ 0.5 N/mm

Internal Method

Tensile Strength

≥ 125 N/15 mm

GB/T 5019.2-2009

Restricted Substances Compliance: Fully meets GB/T 30512-2014 (Automotive Restricted Substances), 2011/65/EU (RoHS), and 2000/53/EC (ELV).

◆ GB/T 30512-2014◆ RoHS 2011/65/EU◆ ELV 2000/53/EC◆ Asbestos-Free

Applications

Where Phlogopite Mica Tape Protects Lives & Property

Phlogopite mica tape is widely used as the fire-resistant barrier in electrical wires and cables — wrapped around the copper conductor as the fire-resistant insulation layer between the core and outer sheath.

High-Rise Buildings

Fire-survival cables for emergency circuits in skyscrapers, hotels, hospitals, and commercial complexes.

Subway & Tunnels

Underground metro systems, rail tunnels, and highway tunnels requiring extended circuit integrity under fire.

Power Stations

Critical control and emergency cables inside thermal, nuclear, hydroelectric and renewable power generation stations.

Ships & Offshore Platforms

Marine-grade fire-survival cables for vessels, FPSOs, and oil & gas offshore platforms under SOLAS requirements.

Fire Alarm & Emergency

Smoke detection circuits, emergency lighting, fire pump controls, and evacuation PA systems.

Data Centers

Mission-critical facilities requiring fire-survival power, cooling, and network infrastructure cables.

Electrical & Power Equipment

Industrial switchgear, control panels, and power distribution systems requiring fire-resistant wiring.

Home Appliances

Heating appliance internal wiring requiring fire-resistant insulation under fault conditions.

New Energy Batteries

EV battery pack internal wiring and energy storage systems requiring thermal runaway protection.

Storage & Usage

Handling Recommendations

Follow these guidelines to maintain the tape's full performance envelope from factory shipment through final cable production.

Storage

Store in a dry, clean, room-temperature environment. Avoid direct sunlight and humidity to maintain the tape's dielectric and mechanical performance. Keep rolls in original packaging until use. Shelf life 12 months from production date when stored correctly.

Usage in Production

Compatible with standard cable wrapping equipment. At room temperature, the tape offers excellent flexibility and is easy to process — suitable for high-speed helical winding around the conductor. Recommended overlap ratio 50% for full fire-barrier integrity.

Double-Sided Phlogopite Mica Tape — 750°C Fire-Resistant Cable Tape

What Is Double-Sided Phlogopite Mica Tape?