Ceramic insulating varnish is a cutting-edge type of functional lacquer, specifically designed for high-performance insulation applications. It belongs to the category of water-based inorganic coatings and is formulated using nano-inorganic compounds as its primary components, with water acting as the dispersion medium. This innovative material is typically applied through coating and then cured at low temperatures to form a ceramic-like insulating layer. The result is a durable, high-performance insulation film that mimics the properties of ceramics. Developed after years of collaborative research between the National Aeronautical Materials Research Institute and Beijing Zhisheng Weihua Chemical Co., Ltd., this high-temperature ceramic insulating varnish has achieved performance levels that surpass international standards. It has been successfully applied in the Shenzhou series of spacecraft, demonstrating its reliability under extreme conditions. The high-temperature resistant ceramic insulating varnish features excellent electrical insulation, heat resistance, wear resistance, and high hardness. It also exhibits strong oxidation resistance, thermal shock resistance, and a moderate thermal expansion coefficient—making it ideal for use in high-speed aerospace structures. The material can function effectively under extreme temperatures, providing reliable insulation in demanding environments. One of the key products in this line is ZS-1091, which can withstand temperatures up to 1800°C. It forms a highly resistive insulating layer on the surface of the object being coated, capable of withstanding intense electric fields without breakdown. The volume resistivity of ZS-1091 exceeds 10¹⁶ Ω·m, while its dielectric strength is greater than 10⁴ kV/m. The formulation includes inorganic crystal materials such as α-alumina, silicon nitride, and high-grade mica, ensuring long-term stability and resistance to aging, corrosion, and chemical degradation. This water-based inorganic high-temperature lacquer is not only safe due to its lack of flash point or ignition point but also offers exceptional mechanical strength and thermal shock resistance. It is widely used for insulating high-temperature cables and other critical applications where fire protection and electrical safety are essential. By sintering during application, the coating creates a hard, ceramic-like casing that effectively prevents flame spread and protects the underlying substrate from damage. The development of this technology represents a significant advancement in the field of insulation, offering new possibilities for future engineering and scientific research. For more information, visit: http://news.chinawj.com.cn Editor: Hardware Business Network Information Center

Steel Pipe Lined With Ultra-high Molecular Weight Polyethylene Pipe

Cross helically wound steel wires reinforced-polyethylene composite pipe (SRCP) is a kind of composite metal plastic pipe with excellent overall performance. With excellent pressure bearing performance, good flexibility, long-term resistance to acid and alkaline corrosion and abrasion, it is suitable for long-distance underground pipes for water supply and drainage, slurry transportation and the like, especially for subsidence region such as mining area, river channel.

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