In the field of electrical equipment insulation, composite mica tape acts as the "protective clothing" for equipment, whose performance directly determines the operational safety of the entire system. As one of China's early manufacturers engaged in composite mica tape R&D, NBRAM once provided key insulation materials for a UHV converter station under State Grid. This station operates in complex environments, with equipment continuously exposed to high temperature, high humidity, and strong electromagnetic fields. Our specially developed reinforced composite mica tape, featuring a unique double-layer mica structure combined with high-temperature resistant epoxy resin system, demonstrates exceptional dielectric strength and mechanical toughness during long-term operation. After three years of practical operation verification, this product helped customers reduce equipment insulation failure rate by 70%, an achievement that earned us an excellent reputation in the UHV power transmission field. Our Composite Mica Tape series include Silicone Resin Bonded Mica Tape, High Temperature Resistant Mica Tape, etc.
We continuously strive to develop targeted composite mica tape products according to different application scenarios. For instance, in marine power systems, our water-blocking composite mica tape effectively prevents insulation performance degradation caused by humid environments through added special water-absorbing expansion layers. For nuclear power equipment's specific requirements, our radiation-resistant composite mica tape maintains over 85% of its original insulation strength even under harsh conditions with cumulative absorbed dose reaching 1×10^6 Gy. Particularly noteworthy is our ultra-thin composite mica tape developed for new energy vehicle drive motors, with a mere 0.6mm thickness yet capable of withstanding continuous working voltage of 20000V, whose exceptional corona resistance performance more than doubles motor lifespan. These innovations all originate from our continuous in-depth technical exchanges and practical verification with users.
Currently, NBRAM composite mica tape has fully obtained UL, CE, IEC international certifications and complies with RoHS environmental directives. We maintain long-term strategic partnerships with industry leaders like Harbin Electric and Dongfang Electric, with products widely used in power generation equipment, power transmission/distribution systems, and industrial motors, exporting to over thirty countries and regions including EU, Southeast Asia, and the Middle East. Our new intelligent production line achieves precise composite of multilayer materials including mica paper, fiberglass cloth, and polyester film, with thickness tolerance controlled within ±0.015mm. Each batch must undergo eighteen rigorous tests including dielectric strength, thermal stability, and flexibility. Recently, our new generation nano-composite mica tape developed in cooperation with Tsinghua University Insulation Materials Laboratory adopts innovative interface modification technology, achieving corona resistance life eight times longer than traditional products. This breakthrough will provide crucial support for developing new-generation high-efficiency motors. Choosing NBRAM composite mica tape means opting for safety assurance proven through practice.
When your projects demand insulation that won’t quit under thermal stress, NBRAM’s Silicone Resin Bonded Mica Tape steps up. We’ve engineered this tape to hug complex geometries while handling temperatures soaring to 1000°C. It’s the kind of reliability that keeps motors humming in steel mills and transformers secure in renewable energy setups. If you’re sourcing high-performance insulation, this tape brings together compliance with international standards and NBRAM’s rigorous quality—making it a smart pick for engineers who value durability and safety.
When engineers first approach us about thermal challenges, they often share the same frustration: "We need insulation that won't quit when the temperatures soar." That's precisely why we developed our high temperature resistant mica tape – to solve the critical problem of maintaining electrical integrity in environments where other materials simply fail.
You know that moment when you're reviewing safety protocols and realize traditional insulation just won't cut it for high-risk applications? That's exactly where our flame retardant mica tape steps in – born from witnessing one too many close calls in industrial settings where electrical fires could have been prevented with better materials.
