3.5mm PTFE O-Rings

3.5mm PTFE O-Rings are high-performance sealing rings designed for industrial applications requiring excellent chemical resistance, high temperature capability, and long-term sealing reliability.

Manufactured from premium PTFE (Polytetrafluoroethylene), these O-rings offer outstanding resistance to aggressive chemicals, acids, solvents, fuels, and hydraulic fluids. The 3.5mm cross section provides reliable sealing performance for medium-duty and demanding industrial sealing applications.

Compared with conventional elastomer O-rings, PTFE O-Rings maintain superior dimensional stability and chemical compatibility in harsh environments where rubber materials may swell, degrade, or lose sealing performance.

Key Features

• 3.5mm cross section for reliable groove sealing applications
• Excellent chemical resistance against acids, solvents, fuels, and industrial chemicals
• High temperature resistance for extreme operating conditions
• Low friction and non-stick surface for reduced wear and smooth operation
• Excellent dimensional stability with minimal deformation
• Suitable for static and dynamic sealing applications

Applications

3.5mm 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 industrial equipment
• High-temperature sealing systems

Specifications

• Material: PTFE (Polytetrafluoroethylene)
• Cross Section: 3.5mm
• 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.