Mica Paper Category

The Complete Range of Mica Insulation Paper — from 500 °C to 1200 °C

Five engineered grades, one dedicated manufacturing campus. From standard muscovite for home appliances to 99%-pure synthetic fluorophlogopite for precision high-voltage equipment — SZX New Materials supplies every mica paper grade the modern insulation engineer needs.

◆ Category Overview

Product Grades5

Temperature Range500–1200°C

Annual Capacity4,000+T/Y

Production Lines4

Grammage Range50–200g/m²

Export Countries30+

Our Mica Paper Range

Five 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.

◆ Series Overview 500–1200 °C

Mica Paper series - complete range of high-temperature electrical insulation paper

◆ Full Mica Paper Series

Mica Paper — The Complete Series

The factory-direct overview of our entire mica paper lineup. Four production lines, 4,000+ tons annual capacity, every grade from standard muscovite to premium synthetic — plus a look inside our factory with photos and a workshop video showing pallets ready for global export.

Temperature500–1200 °C

Dielectric14–40 kV/mm

Muscovite Mica Paper

The industry workhorse. Natural white mica paper for motors, transformers, capacitors and home appliances up to the 33 kV class. Superior dielectric properties at economical cost.

Temperature400–500 °C

Dielectric15–28 kV/mm

Thickness0.03–0.15 mm

TypeNatural Mineral

Full Specifications

◆ Amber Mica 700 °C

◆ Magnesium-Rich Natural Mica

Phlogopite Mica Paper

Amber-colored magnesium-rich natural mica. +200 °C over muscovite. The industry-standard base material for fire-resistant cable tapes and furnace insulation up to 700 °C continuous.

Temperature700 °C / 800 °C peak

Dielectric12–25 kV/mm

Tensile7–12 N/cm

Fire-TapeYes · Specialty grade

Full Specifications

◆ Heat-Treated 900 °C

◆ Heat-Treated Premium Grade

Calcined Mica Paper

Heat-treated to remove structural water and drive off volatiles — pushes continuous service temperature 200–300 °C higher than standard. Ideal for EV motors, jet engines, furnaces and CSP solar plants.

Temperature600–900 °C

Dielectric15–30 kV/mm

Thermal Cond.≤0.15 W/m·K

Grammage50–160 g/m²

Full Specifications

◆ Highest Purity 1200 °C

◆ 99%+ Pure Fluorophlogopite

Synthetic Mica Paper

Laboratory-grown fluorophlogopite — zero iron oxide, zero quartz impurities. Batch-to-batch consistency for automated assembly, with 1000 °C continuous and 1200 °C short-term rating. The ultimate mica paper.

Temperature1000 °C / 1200 °C peak

Dielectric25–40 kV/mm

Purity99%+

TypeSynthetic Crystal

Full Specifications

Side-by-Side Comparison

Which Mica Paper Grade Is Right for Your Application?

Compare all five grades at a glance. Click any column header to see the full product page with complete technical specifications.

Property	Muscovite500 °C	Phlogopite700 °C	Calcined900 °C	Synthetic1200 °C
Material Source	Natural white micaMost abundant	Natural amber micaMagnesium-rich	Heat-treated naturalCalcined	Synthetic crystalFluorophlogopite
Continuous Service Temp.	400–500 °C	700 °C	600–900 °C	Up to 1000 °C
Short-Term Peak Temp.	600 °C	800 °C	1000 °C	1200 °C
Dielectric Strength	15–28 kV/mm	12–25 kV/mm	15–30 kV/mm	25–40 kV/mm
Purity / Consistency	Natural grade	Natural grade	Refined	99%+ · Lab-grade
Typical Grammage	0.03–0.15 mmBy thickness	65–160 g/m²	50–160 g/m²	80–160 g/m²
Best for	Motors, transformers, appliances	Fire-resistant cable tapes, furnaces	EV motors, jet engines, CSP solar	HV transformers, EV batteries, precision
Relative Cost	Most economical	Mid-range	Premium	Highest

Why SZX Mica Paper

What Sets Our Mica Paper Apart

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

Four Production Lines

Parallel capacity means we can run standard grammages and custom orders simultaneously — no bottlenecks, shorter lead times.

Batch-Level QC Testing

Dielectric strength, tensile strength, mass loss, and air permeability tested on every production batch. Full test reports available.

Custom Widths & Slitting

Any nominal weight, any slit width. Precision slitting equipment handles orders from prototype rolls to multi-container shipments.

Export-Ready Packaging

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

Who Uses Our Mica Paper

Trusted Across Electrical & Thermal Industries

From 1 kV home appliances to 400 kV transmission cable cores — the same mica paper portfolio, engineered to the right voltage and temperature class.

Fire-Resistant Cables

IEC 60331 / BS 6387 cable fire-barrier layer

Transformer Insulation

Inter-layer and end insulation in HV transformers

Motor Windings

Slot insulation in HV motors and generators

EV Battery Modules

Thermal runaway barrier in battery packs

Industrial Heaters

Heating element cores, boilers, thermal reactors

Aerospace Components

Jet engines, exhaust systems, battery insulation

Railway & Rolling Stock

Locomotive traction motors, EN 45545 cables

Solar Thermal (CSP)

Insulation in concentrated solar power systems

Home Appliances

Hair dryers, toasters, ovens, microwaves

Frequently Asked

Mica Paper Buyer's Guide

The most common questions from engineers and procurement teams evaluating our mica paper range.

Which grade should I choose for a fire-resistant cable?+

For IEC 60331 / BS 6387 fire-survival cables, the industry-standard choice is phlogopite mica paper — specifically our specialty fire-tape grade with optimized binder and tensile strength. For ultra-demanding applications requiring longer circuit integrity under flame, calcined mica paper is an upgrade. Contact our team for a fire-tape specification sheet.

What's the difference between muscovite and phlogopite?+

Both are natural mineral mica papers, but muscovite is white/silver and rated to 500 °C, while phlogopite is amber/brown (magnesium-rich) and rated to 700 °C — 200 °C higher. Muscovite is more economical and has slightly better dielectric properties; phlogopite is preferred whenever higher temperature or higher tensile strength is needed.

Do you offer custom widths and grammages?+

Yes. Our slitting lines can produce any width from narrow tape-stock (10–50 mm) up to 1-meter wide jumbo rolls. Custom grammages within each product's nominal range are available — typical MOQ is 500 kg for custom specifications. Lead time for custom orders is 15–25 days.

What's the typical MOQ and lead time?+

For standard stock items: MOQ ~500 kg, lead time 3–7 days. For made-to-order production runs: MOQ varies by grade (typically 1 ton for synthetic, 500 kg for other grades), lead time 15–25 days. Rush production available with small surcharge — discuss with your sales contact.

Can you provide test reports and certifications?+

Yes. Every shipment includes a batch test report with dielectric strength, tensile strength, mass loss, and air permeability. Third-party laboratory reports available on request. Our manufacturing is ISO 9001 certified. Products meet IEC 60371, IEC 60626, and can be specified for IEC 60331 fire-resistant cables.

What packaging and shipping do you use?+

Rolls are individually wrapped in moisture-barrier plastic, 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, and MSDS.

The Complete Range of Mica Insulation Paper — from 500 °C to 1200 °C

Five Engineered Grades — One Trusted Supplier

Mica Paper — The Complete Series

Muscovite Mica Paper

Phlogopite Mica Paper

Calcined Mica Paper

Synthetic Mica Paper

Which Mica Paper Grade Is Right for Your Application?

What Sets Our Mica Paper Apart

Four Production Lines

Batch-Level QC Testing

Custom Widths & Slitting

Export-Ready Packaging

Trusted Across Electrical & Thermal Industries

Fire-Resistant Cables

Transformer Insulation

Motor Windings

EV Battery Modules

Industrial Heaters

Aerospace Components

Railway & Rolling Stock

Solar Thermal (CSP)

Home Appliances

Mica Paper Buyer's Guide

Not Sure Which Mica Paper Grade You Need?