What Is Fluoropolymer Wire?

Fluoropolymer wire, commonly searched as Teflon wire or high-temperature wire, uses fluoropolymer materials as electrical insulation.

Compared with conventional PVC wire, fluoropolymer insulated wire offers better heat resistance, chemical resistance, electrical insulation and environmental durability.

Common fluoropolymer insulation materials include:

FEP, PFA, PTFE, ETFE and PVDF.

These materials are widely used in temperature sensors, NTC/PTC thermistors, industrial equipment, semiconductor equipment, automotive electronics and other high-temperature applications.
 

Actual temperature ratings, voltage ratings and UL Styles depend on the specific wire construction and certification.

FEP Wire

FEP wire offers good heat resistance, chemical resistance and electrical insulation while remaining suitable for conventional melt extrusion.

Typical applications include electronic equipment, sensors, industrial equipment and high-temperature internal wiring.

Representative specification: UL 1330, 200°C / 600V

PFA Wire

PFA wire is suitable for higher-temperature and more demanding environments.

It provides excellent heat resistance, chemical resistance and electrical insulation performance.

Typical applications include:

Temperature Sensors, NTC/PTC Thermistors, Semiconductor Equipment, Heaters and High-Temperature Equipment.

Representative specification: UL 10362, 250°C / 600V

PTFE Wire

PTFE wire provides excellent high- and low-temperature performance, chemical resistance and low-friction properties.

It is widely used in high-temperature equipment, industrial machinery, precision instruments and specialty electronic applications.

Representative specification: UL 10344, 250°C / 600V

ETFE Wire

ETFE wire is especially known for its strong mechanical performance and abrasion resistance.

It is suitable for automotive electronics, sensors and automation equipment where compact size, mechanical durability or thin-wall insulation is important.

Representative specification: UL 10109

PVDF Wire

PVDF wire generally has a lower maximum temperature capability than PFA or PTFE, but offers good abrasion resistance, weather resistance and mechanical strength.

It is commonly used in electronic equipment, sensors, control systems and specialty industrial applications.

Representative specification: UL 1422

How to Choose the Right Fluoropolymer Wire

As a simple guideline:

250°C + excellent chemical resistance → PFA / PTFE

Around 200°C + good processability → FEP

Abrasion resistance + mechanical strength + thin-wall design → ETFE

Moderate temperature + weather and abrasion resistance → PVDF

The final selection should also consider operating temperature, voltage, AWG or mm², conductor material, overall diameter, flexibility and actual operating environment.

BOLI Electronic Fluoropolymer Wire Solutions

BOLI Electronic provides FEP, PFA, PTFE, ETFE and PVDF fluoropolymer wire and other specialty high-temperature wire solutions.

Typical applications include:

Temperature Sensors, NTC/PTC Thermistors, Industrial Equipment, Automotive Electronics, Heating Equipment, Semiconductor Equipment and other high-temperature electronic applications.

If you are looking for FEP Wire, PFA Wire, PTFE Wire, ETFE Wire, PVDF Wire or UL High Temperature Wire, please provide your operating temperature, voltage, conductor size, overall diameter and application environment.

BOLI Electronic can help evaluate the appropriate insulation material and wire construction for your application.