Mica Plates Category

Industrial Insulation for Every Structural, Hard & Flexible Need

Four engineered mica plate grades covering the full spectrum of industrial insulation challenges — from heavy-duty 20mm structural boards to paper-thin 0.1mm bendable sheets. Temperature range 400-1000°C, dielectric strength up to 35 kV/mm, muscovite and phlogopite options.

◆ Category Overview

Product Grades4

Temperature Range400–1000°C

Thickness Range0.1–150mm

Dielectric Strength12–35kV/mm

Annual Capacity3,000+T/Y

Export Countries30+

Our Product Range

Four Engineered Grades — Matched to Your Application

Each grade is purpose-built for specific temperature, thickness, and flexibility requirements. Click through for full specifications and technical data sheets.

1000°C Structural

3–20mm

◆ Structural · Heavy-Duty

Thick Mica Plate

Heavy-duty 3-20mm (custom to 150mm) structural insulation. ≥200 MPa bending strength for furnaces, HV transformers, and heavy machinery.

Thickness3–20 mm

Temp500–900 °C

Bending≥200 MPa

Dielectric15–30 kV/mm

Full Specifications

1000°C Hard Grade

0.1–100mm

◆ Hard · Widest Range

Rigid Mica Plate

Widest thickness range 0.1-100mm with cold-press or machining routes. For EV, energy storage, metallurgy, marine — 7 industries covered.

◆ Bendable · 40% Lighter

Flexible Mica Plate

Bends, wraps, and folds without cracking. 0.1-2mm, 40% lighter than rigid. For motor coils, HV cables, automotive harnesses, aerospace.

Thickness0.1–2 mm

Temp300–900 °C

Density0.8–1.2 g/cm³

Dielectric12–25 kV/mm

Full Specifications

1000°C All Grades

Overview

◆ Complete Series · 4 Grades

Mica Plate (Series)

Full series overview covering muscovite, phlogopite, synthetic, and composite grades — with 3 resin options and custom machining.

Thickness0.1–20 mm

Temp400–1000 °C

Bending≥80 MPa

Dielectric12–35 kV/mm

Full Specifications

Side-by-Side Comparison

Which Grade Matches Your Application?

Compare all four grades at a glance. Click any column header to visit the full product page with complete TDS.

Property	Thick PlateStructural	Rigid PlateHard Grade	Flexible PlateBendable	Series OverviewAll Grades
Thickness Range	3–20 mmCustom to 150 mm	0.1–100 mmWidest range	0.1–2 mmThinner for bending	0.1–20 mmStandard
Continuous Temp	500–750 °C	500–700 °C	500–700 °C	400–1000 °C4 grades
Intermittent Temp	700–900 °C	800–1000 °C	700–900 °C	Up to 1000 °C
Bending Strength	>200 MPa	>120 MPa	>200 MPa	≥80 MPa
Dielectric Strength	15–30 kV/mm	>20 kV/mm	12–25 kV/mm	12–35 kV/mm
Density	1.8–2.3 g/cm³	1.8–2.45 g/cm³	0.8–1.2 g/cm³40% lighter	1.6–2.3 g/cm³
Flexibility	Rigid structural	Rigid hard	Bendable · Wrappable	Varies by grade
Flame Retardancy	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Best for	Heavy machinery, large transformers	EV, energy storage, metallurgy	Motor coils, wire harnesses	Custom selection
Machining	Cut, drill, mill	Cold press + full machining	Cut, die-cut, wrap	All options
Relative Cost	Premium	Most economical	Standard	Varies

◆ Decision Helper

Not Sure Which Plate Grade You Need?

Match your application scenario to the right product. If your use case isn't listed here, contact our engineering team — we'll recommend the best grade within 24 hours.

◆ If You Need Heavy-duty structural insulation with mechanical load-bearing?

Large transformers / generators
Industrial furnace door seals
Heavy machinery spacers
HV switchgear structural insulation

Recommended

Thick Mica Plate

View Product

◆ If You Need Versatile hard plate with wide thickness range and machinability?

EV battery insulation
Energy storage systems
Metallurgy equipment
Marine & shipbuilding

Recommended

Rigid Mica Plate

View Product

◆ If You Need Bendable plate to wrap coils, fit tight spaces, or curved geometry?

Motor & generator coils
High-temperature cables
Automotive wire harnesses
Aerospace connectors

Recommended

Flexible Mica Plate

View Product

◆ If You Want To explore all 4 mica type grades with 3 resin options?

Muscovite (400-600°C)
Phlogopite (600-800°C)
Synthetic (up to 1000°C)
Composite (heavy-duty)

Start With

Mica Plate Series

View Overview

Why SZX Mica Plates

What Sets Our Plate Manufacturing Apart

Fifteen years of mica expertise, multi-resin production lines, precision CNC machining capability, and strict batch-level QC for global B2B supply.

Multi-Resin Production

Silicone (up to 1000°C), epoxy (up to 600°C), and phenolic (up to 400°C) resin systems — matched to your operating temperature and cost target.

Precision CNC Machining

±0.1mm tolerance CNC cutting, drilling, milling, and turning. CAD-based custom shapes for automotive OEM and industrial customers.

Batch-Level QC

Every batch tested per IEC 60371-2, IEC 60243-1, and GB/T 5019.2 — bending strength, dielectric strength, temperature rating, and flame retardancy.

Export-Ready Packaging

Moisture-barrier wrapping, corner protection, HS-code labeling, and full export documentation. Sea, air, and express courier shipping worldwide.

Who Uses Our Mica Plates

Trusted by Engineers Across Nine Industries

From traditional power generation to cutting-edge EV batteries — our mica plates insulate every major industrial sector.

Electric Motors & Generators

Slot insulation, coil separators, and end laminations

EV & Battery Packs

Cell separators, thermal barriers, module liners

Industrial Furnaces

Linings, door seals, heating chambers

Aerospace Systems

Engine bay insulation, avionics, wire harnesses

Transformers & Switchgear

Phase insulation, spacers, barriers

Metallurgy & Foundry

Casting equipment, mold protection

Energy Storage Systems

BESS, utility-scale battery insulation

Renewable Energy

Solar inverters, wind turbines, geothermal

Home Appliances

Heating elements, toasters, hair dryers

Frequently Asked

Mica Plates Buyer's Guide

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

Thick mica plate (3-20mm) is the heavy-duty structural option — ≥200 MPa bending strength for load-bearing applications. Rigid mica plate (0.1-100mm) is the widest-range hard plate — cold-press for thin sheets, CNC machining for thick blocks. Flexible mica plate (0.1-2mm) bends and wraps without cracking — 40% lighter than rigid plates, perfect for motor coils and wire harnesses.

Choose muscovite (silver white, 500°C continuous / 700-800°C intermittent) for standard applications below 600°C — more economical. Choose phlogopite (amber, 700-750°C continuous / 900-1000°C intermittent) for high-temperature applications above 600°C — industrial furnaces, metallurgy, aerospace. Both offer identical physical properties otherwise.

Three options depending on your operating temperature: Silicone (up to 1000°C, premium cost) for extreme high-temperature applications like industrial furnaces. Epoxy (up to 600°C, mid-range) for motors and transformers — the most common choice. Phenolic (up to 400°C, economical) for low-voltage appliances and consumer products.

Yes. We offer CAD-based precision die-cutting, CNC milling, drilling, turning, and grinding to ±0.1mm tolerance. Thin plates (≤2mm) can be cold-pressed, laser-cut, or water-jet cut. Thick plates (≥2mm) are machined using CNC equipment. Send us your CAD drawings and we'll quote ready-to-install parts. Minimum order 500 kg, lead time 15-25 days.

For standard stock items (common thickness/size): MOQ ~500 kg, lead time 3-7 days. For custom specifications (width, thickness, die-cut shapes, custom resin): MOQ 500 kg-1 ton depending on grade, lead time 15-25 days. Rush production available with small surcharge. For ongoing OEM customers, we offer VMI (vendor-managed inventory).

ISO 9001 certified manufacturing, with IATF 16949-aligned processes for automotive customers. Products meet UL94 V-0, RoHS, REACH, and asbestos-free requirements. Testing per IEC 60371-2 (mica content/density), IEC 60243-1 (dielectric strength), GB/T 5019.2 (bending/water absorption). Third-party laboratory reports available for automotive/aerospace approvals.

Industrial Insulation for Every Structural, Hard & Flexible Need

Four Engineered Grades — Matched to Your Application

Thick Mica Plate

Rigid Mica Plate

Flexible Mica Plate

Mica Plate (Series)

Which Grade Matches Your Application?

Not Sure Which Plate Grade You Need?

What Sets Our Plate Manufacturing Apart

Multi-Resin Production

Precision CNC Machining

Batch-Level QC

Export-Ready Packaging

Trusted by Engineers Across Nine Industries

Electric Motors & Generators

EV & Battery Packs

Industrial Furnaces

Aerospace Systems

Transformers & Switchgear

Metallurgy & Foundry

Energy Storage Systems

Renewable Energy

Home Appliances

Mica Plates Buyer's Guide

Not Sure Which Mica Plate Grade You Need?