1000°C Rigid Grade

Rigid mica plate - hard mica board from mica paper and resin for EV batteries, energy storage, metallurgy and power engineering

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◆ Mica Plates Series

Rigid Mica Plate — Hard High-Strength Insulation Board

0.1–100mm Range >120 MPa Bending UL94 V-0

Hard mica plate manufactured from mica paper and resin, engineered for applications requiring both superior electrical insulation and high mechanical hardness. Features excellent bending strength, outstanding acid/alkali/oil resistance, and asbestos-free composition with minimal smoke and odor at elevated temperatures. Available in muscovite and phlogopite grades for 500-1000°C operating environments.

550–800°C

Temperature Range

>20kV/mm

Dielectric Strength

>120MPa

Bending Strength

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Key Features

Four Properties That Make It the Engineer's Choice

Every property is verified per batch. Full test reports shipped with every order — critical for automotive, marine and power industry approvals.

◆ 01

Excellent Insulation at High Temperature

Maintains stable dielectric performance across the full 500-1000°C operating range. Dielectric strength >20 kV/mm even under sustained thermal stress — critical for HV equipment.

◆ 02

Superior Bending Strength & Hardness

Rigid mica plate offers exceptional bending strength (>120 MPa) and hardness, while soft mica plate provides good tensile properties — both can be machined into various shapes without delamination.

◆ 03

Environmentally Safe

100% asbestos-free composition. Minimal smoke and odor when heated (even smokeless and odorless in many cases). UL94 V-0 flame retardant — safe for enclosed industrial use.

◆ 04

Chemical & Oil Resistance

Excellent resistance to acids, alkalis, and oils — ensures long service life even in aggressive chemical environments typical of metallurgy, marine, and chemical processing plants.

Dimensions & Format

Widest Thickness Range in the Industry

From ultra-thin 0.1mm sheets for precision electronics to heavy 100mm blocks for industrial insulation — all manufactured to the same rigorous quality standard.

◆ Thickness Range

0.1–100mm

Starting from ultra-thin 0.1mm/0.15mm/0.2mm sheets for precision applications, extending to 100mm thick blocks for heavy-duty industrial insulation.

Ultra-thin: 0.1 / 0.15 / 0.2 mm
Standard: 0.5 – 10 mm
Heavy-duty: 10 – 100 mm

◆ Sheet Sizes

1000 × 600
1000 × 1200mm

Two standard sheet sizes cover most industrial applications. Custom cutting and dimensional tolerances available on request for large-format equipment.

Standard: 1000 × 600 mm
Large: 1000 × 1200 mm
Custom cutting available

◆ Compliance

UL94 V-0
Asbestos-Free

Certified UL94 V-0 flame retardant with asbestos-free composition. Low smoke emission (<4s test) — compliant with modern environmental and safety standards.

UL94 V-0 flame retardant
Asbestos-free composition
Smoke test < 4 seconds

◆ Machining Guide

Two Processing Routes Based on Thickness

Our rigid mica plate supports both cold pressing for thin sheets and precision machining for thick blocks — giving you complete flexibility in final component geometry.

◆ Route A · Cold Pressing

Thickness ≤ 2.0mm

Thin sheets can be cold-pressed directly into your final shape. No heat or specialized machining equipment required — ideal for high-volume production of flat insulation parts.

Cold Press
Die Cutting
Laser Cutting
Water Jet

◆ Route B · Precision Machining

Thickness ≥ 2.0mm

Thicker plates require mechanical machining — milling, drilling, sawing, or CNC profiling. Our factory provides pre-machined parts to your exact CAD drawings on request.

CNC Milling
Drilling
Sawing
Turning
Grinding

Technical Data

Muscovite vs Phlogopite · Full Technical Specifications

Both grades use the same resin system and processing — the key difference is temperature class and mica type. Compare complete batch-verified parameters below.

Rigid Mica Plate Technical Data

◆ Muscovite & Phlogopite Grades · Rev. 2025

◆ Verified Per Batch

Parameter	Unit	Muscovite Rigid PlateSilver White	Phlogopite Rigid PlateAmber · Higher Temp	Test Method
Mica Paper Type	/	Muscovite	Phlogopite	/
Mica Content	%	≈ 92	≈ 92	IEC 60371-2
Binder Content	%	≈ 8	≈ 8	IEC 60371-2
Density	g/cm³	1.8 – 2.45	1.8 – 2.45	IEC 60371-2
Temperature (Continuous Use)	°C	500	700	/
Temperature (Intermittent Use)	°C	800	1000	/
Heat Loss at 500°C	%	< 1	< 1	IEC 60371-2
Heat Loss at 700°C	%	< 2	< 2	IEC 60371-2
Bending Strength	MPa	> 120	> 120	GB/T 5019.2
Water Absorption	%	< 1	< 1	GB/T 5019.2
Dielectric Strength	kV/mm	> 20	> 20	IEC 60243-1
Flame Retardancy	/	UL94 V-0	UL94 V-0	UL94
Smoke Emission Test	s	< 4	< 4	Internal Method

Applications

Seven Industries That Specify Rigid Mica Plate

From consumer appliances to new energy vehicles — our rigid mica plate delivers reliable insulation where both structural strength and electrical performance matter.

New Energy Vehicles (EV)

Battery pack insulation, thermal barriers, module spacers — critical for EV battery safety and thermal management.

Energy Storage Systems

BESS battery compartment insulation, cell separators, and heat-resistant structural components for utility-scale storage.

Power Engineering

Insulation components for transformers, switchgear, high-voltage equipment, and distribution systems.

Metallurgy Industry

Heat-resistant insulation for steel casting, smelting equipment, and high-temperature processing lines.

Home Appliances

Heating element mounts, insulation brackets in toasters, ovens, hair dryers, and heating appliances.

Electromagnets

Insulation layers in industrial electromagnets, lifting magnets, and electromagnetic braking systems.

Marine & Shipbuilding

Ship electrical systems, engine room insulation, and marine-grade equipment requiring chemical/corrosion resistance.

Custom Industrial

CNC-machined to your specifications for any industrial application requiring hard, insulating, chemical-resistant components.

Rigid Mica Plate — Hard High-Strength Insulation Board