Mica sheets are indispensable in many industries thanks to their exceptional insulating properties and versatility. They are widely used where extreme temperature insulation and high dielectric strength are essential.
There are two primary types of mica sheets: Rigid Mica Sheets and Flexible Mica Sheets. While both offer similar core benefits, each is tailored for different uses.
Mica is a naturally occurring silicate mineral that forms in thin, flat sheets. These sheets can be split into very fine layers that are both durable and flexible, making mica an ideal material for industrial insulation.
l High Thermal Stability – Withstands very high temperatures without degrading.
l Excellent Electrical Insulation – Non-conductive, ideal for electrical components.
l Low Thermal Conductivity – Reduces heat transfer for efficient insulation.
l High Chemical Resistance – Performs well in harsh, corrosive environments.
l Layered Structure – Can be split into thin sheets while maintaining strength and flexibility.
Rigid Mica Sheets are made from mica paper or splittings bonded with heat-resistant resin under high pressure and temperature. The result is a solid, inflexible insulating material capable of withstanding mechanical stress and high heat.
Key Properties:
l High mechanical strength
l Excellent dielectric performance
l Continuous temperature resistance up to 600 °C (1,000 °C intermittently)
l Long-term durability in harsh conditions
Typical Applications:
l Electrical insulation in motors, transformers, and commutators
l Furnace and kiln insulation
l Industrial machinery in high-stress environments
Flexible Mica Sheets, sometimes called mica tapes or rolled mica sheets, are made by impregnating mica paper with a flexible binder. This retains mica’s insulation performance but adds bendability for easy installation.
Key Properties:
l Easily bent, wrapped, or shaped
l Good thermal resistance for moderate to high temperatures
l Excellent electrical insulation
l Lightweight and easy to handle
Typical Applications:
l Wrapping pipes and cables
l Insulation for household appliances
l Automotive wiring and flexible heating elements
| Feature |
Rigid Mica Sheets |
Flexible Mica Sheets |
| Structure |
Solid, inflexible |
Bendable, conformable |
| Mechanical Strength |
Very high |
Moderate |
| Temperature Resistance |
Up to 1,000 °C (intermittent) |
Suitable for moderate-high |
| Applications |
Heavy-duty, high-stress equipment |
Complex or irregular shapes |
| Ease of Installation |
More difficult in tight spaces |
Very easy, adaptable |
For extreme heat & mechanical stress → Choose Rigid Mica Sheets.
For intricate shapes & flexible installation → Choose Flexible Mica Sheets.
For environments with high humidity → Flexible Mica Sheets often perform better due to moisture resistance.
Qingdao Yilong New Materials Co., Ltd. is a trusted manufacturer and supplier of high-performance insulating and sealing products. Our mica sheets are produced under strict quality control to ensure consistent thermal, electrical, and mechanical performance across diverse applications.
Why Choose YILONG?
l Wide product range: Rigid Mica Sheets, Flexible Mica Sheets, and custom designs
l Proven reliability in electronics, aerospace, automotive, and industrial manufacturing
l Strong R&D capabilities for tailored solutions
l Global supply network with competitive lead times
Email: yilong@yilonginsulation.com
Mob&Whatsapp: +8615866869385
Add: No.3, Mianzhi Street, Zhucheng, Shandong, China
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