PTFE (Polytetrafluoroethylene) membranes are used in various applications in the automotive industry due to their unique properties such as chemical resistance, high temperature resistance and low coefficient of friction. Here are some examples:
Air Filtration: PTFE membranes are used in air filters to remove dust, debris and other contaminants from the air entering the engine. These membranes have high filtration efficiencies and can withstand high temperatures and aggressive chemicals. For example, it is applied to the breathing film of automobile lights, which can effectively protect the lights from condensation of water vapor under extreme temperature differences.
Gasket Material: PTFE membranes are used as gasket material in automotive engines to prevent leaks and ensure a tight seal. These membranes have high chemical resistance and can withstand high temperatures and pressures.

Electrical Insulation: PTFE film is used as insulation in automotive wiring and electrical components. For electronic components such as sensors, these films are highly heat and chemical resistant, helping to prevent electrical fires and malfunctions.
Coatings: PTFE films can be used as coatings for automotive components to reduce friction and wear. For example, PTFE coatings can be applied to engine pistons to reduce friction and improve performance.
The unique properties of PTFE membranes make them valuable in a wide range of automotive applications that require durability, chemical resistance, and high temperature resistance.

PTFE membrane for automobile