May 09, 2025
In high temperature industrial environments, choosing the right cable is not just about performance—it's about safety, stability, and longevity. Among the most reliable options on the market today are Halogen- free Silicone Cables and Teflon Cables. Both are engineered to withstand harsh thermal conditions, but how do they compare in actual performance?
As a professional cable manufacturer, we provide a detailed comparison from a technical and application standpoint to help you choose the best solution for your high temperature wiring needs.
1. Temperature Resistance Range
The primary consideration for high temperature cables is their operational temperature range.
Halogen-free Silicone Cables typically operate between 60°C to +200°C, with some formulations reaching up to 250°C for short durations.
Teflon Cables, made from PTFE (Polytetrafluoroethylene), offer even higher thermal tolerance, withstanding continuous operation at +260°C and short term peaks up to 300°C.
For ultrahigh temperature applications, Teflon Cable has a slight edge. However, silicone cables offer sufficient protection in most industrial conditions while remaining more flexible.
2. Flexibility and Handling
Halogen-free silicone cables are known for their excellent flexibility, especially in low temperature environments. This makes installation easier, especially where complex routing or frequent bending is required.
Teflon cables, while extremely robust thermally and chemically, are generally more rigid. They are less suitable for applications requiring dynamic movement or tight bending radii.
If flexibility is essential, particularly in robotics, automation, or movable connections, silicone cable is the superior choice.
3. Flame Retardancy and Safety
Both cable types exhibit excellent flame retardant properties. However, Halogen-free Silicone Cables have the added advantage of emitting no toxic halogen gases when burned. This makes them safer in enclosed spaces like trains, buildings, or tunnels where fire safety standards are strict.
Teflon cables do produce low smoke and have high flame resistance but can release hazardous gases at decomposition temperatures, such as hydrogen fluoride.
For safety critical environments, especially with human occupancy, halogen-free silicone cable is often preferred.
4. Chemical Resistance
Teflon Cables outperform in chemical resistance. They are inert to almost all acids, bases, oils, and solvents, making them ideal for environments exposed to corrosive substances.
Silicone cables also offer decent resistance to oils and ozone but are not as chemically inert as Teflon.
In chemically aggressive environments, Teflon Cable is the better option.
5. Cost and Customization
From a cost perspective, halogen-free silicone cables are generally more economical and easier to process in manufacturing, allowing for broader customization.
Teflon cables tend to be more expensive due to material cost and complex extrusion processes.
For budget sensitive projects without compromising performance, silicone cables offer an excellent balance between cost, safety, and thermal performance.
Choose Halogen-free Silicone Cable for projects that demand flexibility, low smoke, halogen-free safety, and high thermal tolerance up to 200–250°C.
Choose Teflon Cable if your application requires extreme heat resistance beyond 260°C or must withstand aggressive chemical environments.
At CIT Cable, we specialize in manufacturing both high performance halogen-free silicone cables and a variety of other customized high temperature cable solutions. With years of expertise, advanced production facilities, and a focus on safety and quality, we serve industries ranging from automotive to aerospace, medical to energy. Explore our full product range or contact us to discuss your specific needs today.
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