Mica Sheet

As a leading mica sheet manufacturer and supplier in China, NBRAM has been dedicated to providing high-quality mica sheet products for global industrial customers for over two decades. In high-temperature operating environments such as power equipment, metallurgical casting, and new energy, traditional insulation materials often fail to withstand sustained high temperatures, while NBRAM mica sheets maintain excellent insulation performance. Our products have been widely used in Tesla's battery production lines, Siemens high-voltage switchgear, and China's high-speed rail traction systems, providing reliable high-temperature insulation solutions. Choosing NBRAM mica sheets means choosing a quality commitment that stands the test of time. Our Mica Sheet series includes Rigid Mica Sheet, Flexible Mica Sheet, etc.


Innovative Material Technology Breaking High-Temperature Limits

The exceptional performance of NBRAM mica sheets stems from continuous innovation in material formulation. We use natural white mica as the base material and employ a unique high-temperature calcination process that allows the mica sheets to maintain stable dielectric strength even at 1200°C. In an ultra-high voltage substation project, our reinforced mica sheets successfully replaced imported products, increasing transformer insulation life by 40%. For the new energy vehicle industry, we developed ultra-thin mica sheets (only 0.1mm thick) that solve the insulation challenges of space-constrained battery modules, with a thermal conductivity reaching 1.2W/m·K, far exceeding industry standards. In the photovoltaic inverter field, our arc-resistant mica sheets can withstand electric field strengths of 20kV/mm, providing solid protection for equipment safety.


Global Certification System and Customized Service Capabilities

NBRAM mica sheets have obtained UL94 V-0 certification, ISO9001 quality management system certification, and RoHS environmental testing, with products complying with the International Electrotechnical Commission's IEC 60371 standard. We have a complete experimental testing center capable of conducting over 20 professional tests including high temperature resistance, arc resistance, and bending strength. Currently, we maintain long-term cooperation with Fortune 500 companies including General Electric and Schneider Electric, exporting products to more than 30 countries and regions including Europe, America, Japan, and South Korea. Our engineering technical team provides customized services, completing samples in as fast as 3 days and achieving batch supply within 7 days. Last year, when a semiconductor enterprise built a new production line, we delivered special-sized mica sheets in just 5 days, ensuring the project's on-schedule operation. This rapid response and professional service capability make NBRAM a trusted partner for global customers.

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  • When your electron tube manufacturing requires precision insulation components that maintain stability under extreme conditions, our Electron Tube Spacer Mica Sheet deliver exceptional dielectric performance and mechanical reliability specifically engineered for vacuum tube applications. These precision-manufactured components provide outstanding electrical insulation while maintaining dimensional integrity under intense thermal cycling and high-voltage environments. We've documented instances where our mica spacers enhanced tube longevity by 400% in high-frequency applications, particularly where minimal thermal expansion and precise electrode positioning are critical. The manufacturing advantage stems from our proprietary processing technology that ensures micron-level thickness consistency and ultra-smooth surface characteristics. For procurement specialists seeking reliable spacer materials that guarantee consistent performance in demanding electron tube applications, our mica spacer sheets represent the optimal solution where electrical failure is not an option.

  • Remember that time we had to completely rebuild a commercial bakery oven because the insulation failed after just six months? That experience taught me the hard way that not all insulation boards are created equal. NBRAM's Mica Thermal Insulation Board for Heaters is what we should have used from the start. These boards handle constant thermal cycling between room temperature and 900°C without cracking or losing their dielectric properties. The natural mica composition provides consistent thermal performance that synthetic materials simply can't match. If you're tired of replacing failed insulation in your heating equipment, it's time to source boards that actually last.

  • For engineers specifying thermal management solutions, our silicone bonded flexible mica plate solve the eternal challenge of maintaining dielectric strength while accommodating thermal expansion in high-temperature environments. These remarkable materials combine the natural dielectric properties of mica with advanced silicone polymer technology, creating a flexible insulation solution that performs consistently from -60°C to 600°C. We've documented cases where our plates outlasted conventional materials by 3.5 times in transformer applications, particularly where thermal cycling causes rigid materials to fail. The secret lies in our proprietary manufacturing process that allows the mica to flex without compromising its insulating properties. When your design calls for reliable insulation that moves with your components rather than against them, our silicone bonded technology delivers exactly what practicing engineers need.

  • I'll never forget the time we were retrofitting an old industrial furnace and discovered that modern rigid insulation simply wouldn't conform to the curved heating elements. We wasted three days trying to make standard mica plates work before our supplier suggested trying NBRAM's Phlogopite Flexible Mica Sheet. The difference was immediate - it wrapped around those complex curves like it was made for them, and six months later, it's still performing perfectly at 800°C. If you're tired of compromising between flexibility and thermal performance, this is the solution you've been searching for.

  • When your equipment requires flexible insulation under extreme temperatures, NBRAM's high temperature flexible mica sheet provides revolutionary solutions. This specially treated mica material maintains flexibility at 800°C high-temperature environments, particularly suitable for high-temperature cable wrapping, heating element insulation, and aerospace wire protection. Compared with traditional rigid mica boards, its bending endurance exceeds 5000 cycles and withstands drastic temperature changes from -100°C to 800°C. Customer feedback shows our flexible mica sheets improve installation efficiency by 40% in industrial electric furnace heating element insulation, with service life extended threefold. When procuring reliable high-temperature flexible insulation materials, we recommend choosing suppliers like NBRAM with special material processing patents.

  • If you're seeking reliable insulation solutions for high-temperature equipment, NBRAM's phlogopite mica plate series deserves serious consideration. This material maintains stable insulation performance even in continuous 900°C high-temperature environments, making it particularly suitable for metallurgical kilns, glass processing equipment, and aerospace thermal protection systems. Compared to ordinary muscovite, its heat resistance improves by over 30% with better thermal shock resistance. Customer feedback shows our phlogopite plates last 40% longer than similar products in aluminum electrolytic cell insulation layers. When procuring high-quality mica plates, we recommend choosing suppliers like NBRAM with complete quality control systems.

As a reliable Mica Sheet manufacturer and supplier in China, we have custom options and volume discount pricing. Please just send us a quotation!
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