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.
In new energy vehicle battery module thermal management systems, NBRAM's high temperature flexible mica sheet demonstrate exceptional performance—effectively isolating 800°C thermal runaway propagation between cells while flexibly deforming with battery expansion. An aerospace manufacturer uses them as engine compartment wire insulation layers, maintaining complete insulation performance under alternating impacts from -65°C to 600°C. More uniquely, this material complies with UL94 V-0 certification, featuring self-extinguishing properties in high-temperature environments, making it essential for rail transit vehicle interior insulation. In special cable manufacturing, it replaces traditional glass fiber braided layers, reducing cable outer diameter by 30% while increasing temperature resistance by 200°C.
Taking NBRAM's High Temperature Flexible Mica Sheet : thickness ranges from 0.08mm to 1.0mm, with the thinnest specification achieving ultra-precise tolerance of 0.05mm±0.005mm. During high-temperature testing, dielectric strength remains above 18kV/mm at 800°C, with volume resistivity exceeding 10^12Ω•cm. The unique flexible formula enables minimum bending radius of 3mm (for 0.2mm thickness), with tensile strength maintained above 25MPa. Thermal conductivity coefficient is 0.65W/m•K, ensuring both insulation performance and appropriate heat transfer capability. Standard coil width reaches 1000mm, continuous length exceeds 200 meters, supporting high-speed automated winding production.
We adopt exclusively developed mica paper reconstruction technology, selecting premium mica flakes to create ultra-thin mica paper 仅 0.001mm thick through hydraulic peeling process—the foundation for achieving flexibility. Through precisely controlled impregnation 工序，special silicone resin uniformly penetrates between mica paper layers, with resin content strictly maintained between 12%-18%, a ratio proven through extensive experimentation to optimally balance flexibility and temperature resistance.
Heat treatment employs segmented temperature rise technology, slowly curing resin in the 300°C-500°C range, during which mica flakes form unique "fish-scale" layered structures enabling both flexibility and strength. The final calendering process proves particularly important—using mirror-finish stainless steel rollers for calendering at precise temperatures, this process controls surface roughness below Ra0.8μm, facilitating subsequent automated processing.
For quality inspection, we developed specialized flexibility fatigue testers, with each batch undergoing over 5000 bending tests. Beyond routine performance testing, thermogravimetric analyzers monitor material weight loss rates under high temperatures, ensuring long-term reliability. Notably, we provide customized thermomechanical analysis reports for each client, data crucial for designing high-temperature dynamic insulation systems.
