In today's increasing demand for environmental protection and safety, Low Smoke Zero Halogen (LSZH) Teflon insulated wires have become the preferred transmission carrier in high-end fields such as medical care, transportation, new energy and so on due to its excellent environmental protection, high temperature resistance and electrical stability. This type of wire combines the environmental protection characteristics of low-smoke halogen-free materials (smoke density <0.5m²/m² during combustion, halogen content <0.5%) with the extreme environmental resistance of Teflon (PTFE/FEP) (-200℃~260℃ working temperature range), which can meet the diversified needs from clean rooms to high-temperature industrial furnaces. According to industry data in 2025, the global LSZH Teflon wire market size has exceeded 5 billion U.S. dollars, with a compound annual growth rate of 12%, of which the demand for medical equipment and rail transportation accounted for more than 60%.
Core advantage: Dual guarantee of security and performance
Environmental safety
No toxic hydrogen halide gas is released during combustion (HCl emissions<0.1mg/g), and it has passed EU RoHS and REACH certification.
Smoke transmittance>80% (traditional PVC wires only 20%), significantly improving fire escape visibility.
Extreme environmental adaptability
High temperature resistance: The insulation resistance remains at 10 ¹⁶Ω· cm at 260 ℃, suitable for industrial heating equipment and wiring in automotive engine compartments.
Chemical corrosion resistance: can resist strong acids (such as concentrated sulfuric acid), strong alkalis, and organic solvents, suitable for the chemical and semiconductor industries.
Electrical performance optimization
Low dielectric loss, meeting the high-frequency signal transmission requirements of 5G base stations.
The volume resistivity is greater than 10 ¹⁸Ω· cm, ensuring the insulation reliability of high-voltage equipment (such as 800V new energy vehicle systems).
Multi-scenario applications
Medical equipment
Used for internal wiring of precision instruments such as MRI, CT, etc. FDA approved to avoid interference with medical signals.
Operating room equipment cables need to meet the requirements of aseptic environment, LSZH Teflon wire can withstand ethylene oxide sterilization.
Rail transportation
Class A flame retardant LSZH Teflon cables are used in rolling stock compartments, and the fire spread rate is <0.5m/min.
Subway tunnel cables need to work stably under the temperature difference of -40℃~90℃, and the life span of resistance to mechanical vibration is up to 10 years.
New Energy & Industry
Photovoltaic inverter connecting cables need to be resistant to UV aging and have an outdoor life span of >25 years.
Lithium production equipment wiring requires explosion-proof and anti-static, surface resistivity 10⁶~10⁹Ω.
Industry standards and certification system
International certifications: UL1581 (flame retardant), IEC60332-3 (bundle combustion), EN50289 (for rail transportation).
Testing indexes: more than 20 tests including halogen content (IEC 60754), smoke toxicity (NES 713), oil resistance (UL 2556) and so on.
With the global ESG (Environmental, Social and Governance) requirements, low smoke halogen-free Teflon wires are being upgraded from an "optional configuration" to a "standard of necessity". In the future, the company will further reduce costs through material modification (such as bio-based fluorine resin research and development) and intelligent manufacturing (continuous production), and promote the penetration of this technology in intelligent buildings, aerospace and other emerging fields.
