◆ 99%+ Purity

Synthetic Mica Paper - High-purity fluorophlogopite insulation paper for high-voltage and high-temperature applications

◆ Mica Paper Series

Synthetic Mica Paper — Fluorophlogopite High-Purity Insulation

Name: Synthetic Mica Paper
Brand: SZX New Materials
Availability: InStock

A high-performance electrical insulation material manufactured from synthetic fluorophlogopite crystals through melting, crystallization, grinding and papermaking. Free of iron oxides and quartz impurities found in natural mica — delivers predictable performance at extreme temperatures and voltages.

1000°C

Continuous Use

40kV/mm

Dielectric Strength

99%+

Crystal Purity

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Product Overview

What Is Synthetic Mica Paper?

Synthetic mica paper is a high-performance insulation material produced from laboratory-grown mica crystals — primarily fluorophlogopite — through a controlled process of melting, crystallization, grinding, and papermaking.

Unlike natural mica paper, synthetic mica paper is completely free of iron oxides and quartz impurities. This gives it exceptional consistency in both chemical composition and physical properties — every batch performs the same way, making it the material of choice for engineering applications where failure is not an option.

At SZX New Materials, our synthetic mica paper is manufactured in certified production lines with full traceability. Every roll is tested for dielectric strength, tensile strength, and mass loss before shipment. Available in nominal weights from 80 g/m² to 160 g/m², with custom widths and slitting on request.

Key Features

Five Engineering Advantages of Synthetic Mica Paper

Every property below is driven by the controlled synthetic crystal structure — not by the variability of mined raw material.

◆ 01

Ultra-High Purity

Over 99% pure fluorophlogopite crystals. Trace-element content is minimized, ensuring stable insulation performance even in harsh operating environments.

◆ 02

Outstanding Electrical Insulation

Dielectric strength of 25–40 kV/mm and volume resistivity above 10¹⁶ Ω·cm — outperforming most natural mica papers in high-voltage insulation service.

◆ 03

Excellent Thermal Resistance

Continuous operating temperature up to 1000 °C with short-term peaks to 1200 °C. Ideal for extreme thermal environments where organic binders fail.

◆ 04

Chemical Inertness

Resistant to strong acids, strong alkalis and organic solvents. Non-hygroscopic, ensuring stable long-term performance in corrosive or humid atmospheres.

◆ 05

Dimensional Stability

Ultra-low coefficient of thermal expansion (≤8×10⁻⁶/°C) and minimal shrinkage — maintains structural integrity through wide temperature cycling.

Technical Specifications

Synthetic Mica Paper Technical Data

Full nominal weight range from 80 to 160 g/m². All values are verified in our in-house QC laboratory per shipment batch. Custom specifications available on request.

Nominal Weight (g/m²)	Avg. Tolerance (%)	Individual Tolerance (%)	Air Permeability (s/100ml)	Penetration Time (Time)	Water-Extract Conductivity (μS/cm)	Mass Loss (%)	Tensile Strength (N/cm)	Dielectric Strength (kV/mm)
80	±3	±4	≤180	≤8	10	0.4	≥2	≥14
105	±3	±4	≤180	≤8	10	0.4	≥2	≥14
120	±3	±4	≤250	≤16	10	0.4	≥2.5	≥14
130	±3	±4	≤250	≤16	10	0.4	≥2.5	≥14
140	±3	±4	≤250	≤20	10	0.4	≥3.0	≥14
160	±3	±4	≤350	≤20	10	0.4	≥3.0	≥14

Note: The 14 kV/mm dielectric strength shown in the table above is the standard guaranteed minimum for bulk paper. Actual tested values typically reach 25–40 kV/mm depending on thickness and binder system. Custom grammages, widths, and slitting available on request — contact our engineering team for a specification sheet tailored to your application.

Applications

Where Synthetic Mica Paper Is Used

From high-voltage power equipment to industrial heating systems — anywhere natural mica falls short on consistency, purity or temperature.

Electrical & Electronics

Used as the insulation layer in high-voltage transformers, capacitors, and inverter systems — ensuring reliable operation of compact, high-power equipment under dielectric stress.

High-Temperature Appliances

Specified for heating elements, industrial ovens, furnaces, and thermal management systems — providing electrical insulation without compromising heat resistance.

High-Voltage Cable Insulation

Used in fire-resistant cable systems and high-temperature wire insulation where sustained dielectric performance above 800 °C is a regulatory or safety requirement.

EV Battery & Energy Storage

Integrated into battery module insulation stacks for EVs and stationary energy storage — delivering the purity needed to prevent dielectric breakdown in next-generation high-voltage pack architectures.

◆ Engineering Value

99%+Fluorophlogopite Purity

Controlled synthetic crystal structure
→ predictable, consistent, reliable.

Why Choose Synthetic Mica Paper

Superior to Natural Mica Where Reliability Matters Most

The controlled synthetic manufacturing process eliminates the variability inherent to natural mica, producing a material with predictable and consistent performance batch after batch. Its high purity makes it ideal for applications where even minor impurities could cause electrical breakdown or performance degradation.

Additionally, synthetic mica paper avoids the supply chain constraints of natural mica — such as mining restrictions and raw-material quality fluctuations — ensuring stable supply and long-term project continuity for our customers.

For industries demanding high reliability, precision, and resistance to extreme conditions, synthetic mica paper offers a superior alternative to natural mica-based products — reducing failure risk and extending equipment service life.

No mining quota risk, no geopolitical supply disruption
Predictable performance for automated assembly lines
Lower field-failure rates vs. natural mica alternatives
Longer equipment service life under thermal cycling

Synthetic Mica Paper — Fluorophlogopite High-Purity Insulation

What Is Synthetic Mica Paper?