Fireproof MICA Shields Enhance Device Safety

Are you concerned about equipment operating at high temperatures? Searching for a safe and efficient insulation material? The solution has arrived with MICA mica sheets, engineered to address these critical challenges with exceptional performance.

MICA mica sheets are manufactured using high-quality muscovite (white mica) or phlogopite (gold mica) as base materials, combined with high-performance adhesives through an advanced high-temperature, high-pressure production process. These sheets demonstrate outstanding heat resistance, flame retardancy, and electrical insulation properties, while their unique flexibility enables diverse application possibilities. With a mica content exceeding 90% and approximately 10% silicone resin, these products guarantee stability and reliability.

The product line offers comprehensive customization options:

• Thickness: Ranging from 0.1mm to 5.0mm to precisely match design requirements
• Dimensions: Standard sizes include 1000×600mm, 1000×1200mm, and 1000×2400mm, with custom cutting available to minimize material waste
• Processing Methods: Sheets under 2.0mm thickness can be formed through stamping processes for efficient production, while thicker sheets (over 2.0mm) accommodate complex designs via precision machining including turning, milling, and drilling

The product range includes rigid, flexible, and thick mica sheets, with distinct performance characteristics for muscovite and phlogopite variants:

Mica sheets are categorized by temperature resistance into standard (muscovite) and high-temperature (phlogopite) variants. Muscovite withstands temperatures of 600-800°C, while phlogopite tolerates 800-1000°C. Industrial applications predominantly utilize muscovite, followed by phlogopite, leveraging their exceptional insulation, heat resistance, chemical stability, pressure tolerance, and easy separation properties.

MICA mica sheets serve critical functions across multiple industries including construction materials, fire protection (as fire retardants), welding electrodes, plastics, electrical insulation, paper manufacturing, asphalt paper, rubber, and pearlescent pigments.

Rigid mica sheets feature uniform thickness, excellent electrical properties, and mechanical strength with minimal smoke emission, representing a new generation of electrical insulation materials. Flexible variants demonstrate superior room-temperature elasticity, capable of repeated folding and shaping without fracture under heavy loads.

Rigid sheets are extensively used in household appliances (hair dryers, toasters, irons), heating equipment, microwave ovens, plastic heating elements, metallurgical furnaces, and medical devices as heating supports, gaskets, and partitions.

Flexible sheets can be customized with voltage resistance up to 1-2 times standard values, available in fully flexible or semi-flexible configurations. These serve as covers, isolation sheets, insulation components, or high-temperature seals in thermal guns, induction furnaces, motors, and transformers, replacing asbestos in automotive, marine, petroleum, and metallurgical applications.

Market-available mica paper primarily consists of muscovite and phlogopite. Heat resistance correlates with expansion characteristics - heating produces water vapor (from crystal water loss) causing perpendicular expansion. Muscovite shows minimal expansion at 500-600°C, expanding 400-750% at 800-880°C. Phlogopite demonstrates thermal expansion at 1000°C, though with reduced transparency and mechanical properties.

Electrical Properties: The layered crystal structure creates anisotropic insulation properties. Muscovite shows volume resistivity of 10¹⁴-10¹⁵ Ω·cm, while phlogopite measures 10¹³-10¹⁴ Ω·cm. Dielectric strength decreases with rising temperature.

Thermal Properties: While exhibiting excellent heat resistance, prolonged high temperatures cause crystal water loss and eventual thermal decomposition.

Chemical Properties: Mica demonstrates strong chemical stability, particularly muscovite which resists alkalis and hydrochloric acid, showing only weak water reactivity. Phlogopite reacts strongly with alkaline water and hydrochloric acid at concentration-dependent rates.

Standard packaging includes 50kg bags transported on 1,000kg wooden or metal pallets. For optimal preservation, store in dry, room-temperature conditions without expiration limitations.