3.53mm PTFE O-Rings

3.53mm PTFE O-Rings are precision sealing rings designed for demanding industrial applications requiring excellent chemical resistance, high temperature stability, and long-lasting sealing performance.

Manufactured from premium PTFE (Polytetrafluoroethylene), these O-rings provide outstanding resistance to aggressive chemicals, solvents, acids, fuels, and hydraulic fluids. The 3.53mm cross section is widely used in industrial sealing systems where reliable compression and dimensional accuracy are required.

PTFE O-Rings are ideal for applications where conventional elastomer seals may experience swelling, chemical degradation, or performance loss under extreme operating conditions.

Key Features

• 3.53mm cross section for reliable sealing groove compatibility
• Superior chemical resistance against acids, solvents, fuels, and aggressive media
• High temperature stability for harsh industrial environments
• Low friction and non-stick properties for smooth operation
• Excellent dimensional stability with minimal swelling and deformation
• Suitable for static and dynamic sealing applications

Applications

3.53mm PTFE O-Rings are commonly used for:

• Chemical processing equipment
• Pumps and valves
• Hydraulic and pneumatic systems
• Semiconductor manufacturing equipment
• Food and pharmaceutical machinery
• Aerospace and automotive sealing applications
• High-temperature industrial equipment

Specifications

• Material: PTFE (Polytetrafluoroethylene)
• Cross Section: 3.53mm (0.139 inch)
• Color: Natural White / Custom Available
• Temperature Range: Approx. -200°C to +260°C
• Chemical Resistance: Excellent
• Friction Performance: Low Friction
• Size Selection: ID × Cross Section
• Customization: OEM sizes available

Custom PTFE O-Rings are available for OEM projects requiring special dimensions, filled PTFE grades, or application-specific sealing solutions.