Tensile Structure Membranes

With its exceptional resistance to high temperatures, oil, and chemical corrosion, PTFE has become an indispensable key material in the automotive industry.

I. Fuel Storage and Delivery Systems

The interior of fuel systems is filled with corrosive fluids, such as gasoline, diesel, and ethanol-containing fuel blends. However,PTFE can maintain its stability within this environment.

Key Application Areas:

① Fuel Tank Cap Seals: Ensure a tight seal for the fuel tank after refueling.

② Fuel Tank Flange Seals: Critical sealing points connecting the fuel tank to the piping system.

③ Fuel Tank Line Connectors: Small but critical components that ensure the safe conveyance of fuel.

II. Fuel Delivery System

The fuel delivery system is responsible for transporting fuel from the fuel tank to the engine, operating within a high-temperature and high-pressure environment. As the core component of the system, the sealing reliability of the fuel pump directly determines the proper functioning of the entire system.

Key Application Points:

① Fuel Pump Seals: Designed to withstand system pressure fluctuations and temperature variations.

② Fuel Injector Seals: Critical sealing components that ensure precise fuel injection.

③ Fuel Hoses: Flexible conduits connecting the various system components.

III. Exhaust Systems

Automotive exhaust systems operate at extremely high temperatures—with exhaust gases temperatures exceeding 300°C—while facing corrosion from aggressive media such as sulfides and acidic gases. But PTFE performs exceptionally well in this environment.

Key Applications:

① Exhaust Flange Gaskets: Withstand extreme temperatures and vibration

② Turbocharger Hose Connectors: Resist high temperatures and chemical corrosion

③ Catalytic Converter Seals: Prevent the leakage of harmful gases

IV. Powertrain System

The powertrain system constitutes the core of an automobile; temperatures within the engine can exceed 200°C, while touching various corrosive media such as engine oil, coolant, and fuel.

Key Application Areas:

① Engine Oil Seals: Critical sealing points such as the crankshaft and camshaft.

② Transmission Shaft Seals: Ensuring sealing integrity in high-speed and high-torque environments.

③ New Energy Vehicle Battery Coolant Seals: Designed to withstand the corrosive environment of ethylene glycol-based coolants.

Expansion of New Energy Vehicle Applications:

With the advancement of new energy vehicle technology, the application of PTFE continues to expand:

● Power Battery Pack Gaskets: Ensuring the battery pack is waterproof and dustproof, meeting the IP68 protection standard.

● Fuel Cell Bipolar Plate Gaskets: Maintaining hydrogen gas tightness in high-temperature and high-humidity environments.

● Dry-Process Electrodes

Why choose UFLON’s PTFE 

● Total Lifecycle Cost: PTFE offers long-term durability in high-temperature and highly corrosive environments.

● Maintenance Cost Savings: Reduces downtime for repairs and the frequency of replacements, thereby lowering overall operating costs.

● Enhanced Reliability: Prevents system failures and mitigates potential safety risks caused by seal failure.

If you’re looking for PTFE solutions in automotive industry, pls contact UFLON today!