Mica Board - Premium Electrical Insulation Solution

Your trusted partner for high-performance electrical insulation and thermal management

Product Overview

Mica board represents the gold standard in electrical insulation materials, combining the natural properties of mica minerals with advanced manufacturing techniques. This exceptional material delivers unmatched performance in demanding applications where conventional insulation materials fail.

Engineered for reliability and built to last, mica board provides superior electrical isolation, thermal stability, and mechanical strength. Whether you're designing power generation equipment, industrial furnaces, or precision electronics, mica board offers the performance and safety margins your applications demand.

Key Features

Superior Electrical Insulation

Delivers outstanding dielectric strength up to 20 kV/mm, ensuring safe operation in high-voltage applications. The natural crystalline structure provides consistent insulation properties even under extreme conditions.

Extreme Temperature Resistance

Operates continuously at temperatures up to 1000°C (1832°F) while maintaining structural integrity. This thermal stability comes from its unique silicate mineral composition that won't degrade under heat stress.

Excellent Machinability

Despite its mineral origins, mica board offers exceptional workability. It can be easily cut, drilled, punched, and shaped using standard machining tools, allowing for precise custom fabrication.

Chemical Inertness

Demonstrates remarkable resistance to acids, alkalis, and most organic solvents. This chemical stability ensures consistent performance in harsh industrial environments.

Fire Safety

Naturally non-combustible and acts as an effective fire barrier. Meets stringent fire safety requirements for electrical and construction applications.

Dimensional Stability

Maintains precise tolerances across wide temperature ranges with minimal thermal expansion, preventing system stress and component failure.

Applications

Power Generation & Distribution

Generator slot insulation

Transformer components

Switchgear panels

High-voltage bushings

Cable terminations

Industrial Equipment

Furnace sight glass gaskets

Heating element supports

Thermal barriers and shields

Industrial oven components

Welding equipment insulation

Automotive Industry

Electric motor insulation

Battery thermal management

Exhaust heat shields

Charging system components

Electronic control modules

Aerospace & Defense

Avionics insulation systems

Thermal protection barriers

Engine compartment components

Satellite thermal management

Military electronics

Consumer Electronics

Microwave oven components

Hair dryer elements

Toaster insulation

Small appliance components

Heating device barriers

Technical Specifications

Electrical Properties

Dielectric Strength: 14-20 kV/mm

Volume Resistivity: >10¹⁴ Ω·cm

Dielectric Loss Factor: <0.01 at 1 MHz

Tracking Resistance: Class A (>600V)

Thermal Properties

Continuous Operating Temperature: Up to 1000°C (1832°F)

Thermal Conductivity: 0.5-0.7 W/m·K

Thermal Expansion: 8-12 × 10⁻⁶/°C

Thermal Shock Resistance: Excellent

Mechanical Properties

Flexural Strength: 80-120 MPa

Compressive Strength: 150-300 MPa

Density: 2.6-2.9 g/cm³

Water Absorption: <0.5% (24h)

Physical Specifications

Thickness Range: 0.5mm to 50mm

Standard Sheet Sizes: 1000×1200mm, 1200×1200mm

Color: Natural mica (silver-gray)

Surface Finish: Smooth, uniform

Chemical Resistance

Acids: Excellent resistance to mineral acids

Alkalis: Good resistance to weak alkalis

Organic Solvents: Excellent resistance

Oils: Good resistance at elevated temperatures

Frequently Asked Questions

What makes mica board superior to other insulation materials?

Mica board combines exceptional electrical insulation, extreme temperature resistance, and mechanical durability in a single material. Unlike synthetic alternatives, its natural mineral composition provides long-term stability without degradation.

How do I select the right grade for my application?

Grade selection depends on your specific temperature, voltage, and mechanical requirements. Our technical team can help you choose between phlogopite (high-temperature applications) and muscovite (moderate temperature, cost-effective) grades.

Can mica board be machined to custom specifications?

Yes, mica board machines easily with standard tools. We offer custom cutting, drilling, and shaping services to meet your exact dimensional requirements.

What safety precautions should I follow when handling mica board?

Use standard safety equipment including dust masks and eye protection when cutting or machining. Work in well-ventilated areas to minimize dust exposure.

How should I store mica board to maintain quality?

Store sheets vertically or flat in dry conditions. Use protective interleaving material and avoid excessive stacking weight that could cause deformation.

Is mica board suitable for food contact applications?

Food-grade mica board meets FDA requirements for direct food contact in heating applications. Verify specific certifications for your intended use.

What's the shelf life of mica board?

When stored properly, mica board has an indefinite shelf life. The mineral composition doesn't degrade over time.

Can you provide material certifications?

Yes, we provide certificates of compliance, material test reports, and can arrange third-party testing when required for critical applications.

Quality Assurance

Our mica board undergoes comprehensive quality control testing to ensure consistent performance:

Electrical testing for dielectric strength and resistivity

Thermal analysis for temperature stability

Mechanical testing for strength and durability

Chemical resistance verification

Dimensional inspection for accuracy

All products come with detailed certificates of compliance and material safety data sheets to support your procurement and engineering processes.

Custom Solutions

Precision Manufacturing Services

Custom cutting and shaping

CNC machining capabilities

Drilling and punching services

Assembly and integration

Engineering Support

Material selection guidance

Application-specific recommendations

Performance optimization

Technical documentation

Quality Options

Various grades available

Custom formulations

Specialized treatments

Certified materials

Get Started Today

Ready to experience the superior performance of mica board? Our team is here to help you select the perfect solution for your application.

Request a Quote

Get pricing and availability for your specific requirements. Include quantity, dimensions, and application details for accurate quoting.

Order Samples

Request sample materials to evaluate performance in your application. We offer free samples for qualified applications.

Technical Consultation

Speak with our application engineers about your specific requirements. We provide expert guidance on material selection and optimization.

Contact Information

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