135℃ Temperature Resistance and Flame Retardant! Military-Grade Heat Shrinkable Marking Sleeve Empowers Cable Identification
Publish Time: 2025-11-11
In modern high-end equipment, aerospace, rail transportation, and military electronic systems, cables act as "neural networks," and their reliability and maintainability directly affect the safe operation of the entire system. Cable marking, as a key aspect of operation and maintenance management, not only needs to be clearly legible but also maintain long-term stability under extreme environments. To address this, a 135℃ temperature resistance and flame retardant military-grade heat shrinkable marking sleeve, specifically designed for high-performance wire and cable marking, has been developed. With its superior material properties and engineering adaptability, this product is becoming a core component of high-reliability cable marking solutions.1. Materials Technology: Breakthrough in Radiation-Crossed PolyolefinsThis heat shrinkable sleeve is made of high-quality radiation-crosslinked polyolefin (PO) material, achieving a three-dimensional network structure crosslinking of molecular chains through high-energy electron beam irradiation. This process significantly improves the material's thermal stability, mechanical strength, and chemical corrosion resistance. Its continuous operating temperature can reach 135℃, and it can withstand even higher temperatures in short periods. Meanwhile, the material itself possesses UL-certified VW-1 or FT1 high flame-retardant properties, is self-extinguishing upon contact with fire, produces no molten droplets, and emits low smoke and halogens, effectively ensuring equipment safety in emergencies such as fires.2. Multifunctional Performance AdvantagesIn addition to high temperature resistance and flame retardancy, this heat shrink tubing also exhibits excellent electrical, physical, and chemical properties. Its high dielectric strength and high volume resistivity ensure reliable insulation under high-voltage conditions; after shrinking, the wall thickness is uniform and the flexibility is good, maintaining good bendability even at low temperatures and resisting cracking; it has excellent resistance to common industrial chemicals such as machine oil, hydraulic oil, solvents, acids, and alkalis, making it suitable for complex and harsh service environments. Furthermore, the surface undergoes special treatment, providing excellent ink adhesion and supporting various printing methods such as laser, thermal transfer, and inkjet printing, resulting in clear, wear-resistant, scratch-resistant, and fade-resistant lettering.3. High-Efficiency Marking: Ready to Use Improving Operation and Maintenance EfficiencyThis heat shrink tubing is specifically optimized for automated marking processes and can be directly fed into mainstream cable marking printers for high-speed printing, requiring no pretreatment or additional consumables. The printed marking information—including serial numbers, function codes, and routing diagrams—shrinks uniformly with the tube during the heat shrinking process, ensuring the text remains readable even in confined spaces without distortion or blurring. This integrated "printing-sleeving-heat shrinking" process significantly shortens the wire harness manufacturing cycle and reduces human error rates, making it particularly suitable for mass production and post-maintenance scenarios.4. Military-Grade Quality, Widely ApplicableAs a military-grade product, it exhibits stable performance under extreme tests such as vibration, shock, damp heat, and salt spray. Its long-term marking capability can remain effective for over ten years, meeting the needs of equipment lifecycle management. Currently, it is widely used in fighter jet avionics systems, shipboard power distribution networks, high-speed rail control harnesses, high-voltage cables for new energy vehicles, and high-density cabling in data centers, becoming the preferred solution for high-reliability cable marking.The military-grade heat shrinkable marking sleeve is not merely a material product, but a crucial fundamental component for intelligent management of high-performance cables. It deeply integrates advanced materials science, precision manufacturing processes, and engineering application requirements, redefining cable marking standards with the concept of "marking equals protection, marking equals reliability."
