PTFE Encapsulated Seals & O-Rings

Expert manufacturing of PTFE Encapsulated components combining chemical resistance of PTFE with elastomer core resilience. Custom sealing solutions for aggressive chemical, pharmaceutical, and food processing applications.

PTFE Encapsulated Sealing Solutions

McDowell & Company specializes in manufacturing PTFE Encapsulated seals and O-rings that combine the chemical inertness of PTFE with the resilience of elastomer cores. Our precision-engineered solutions deliver superior performance in challenging environments where standard seals fail.

Advantages of PTFE Encapsulated Seals

PTFE Encapsulated components offer unique benefits:

• Temperature range from -60°F to +400°F
• Universal chemical resistance
• FDA compliance available
• Low friction properties
• Excellent wear resistance
• Superior compression set resistance
• High pressure capability
• Extended service life
• Clean room compatible
• USP Class VI available

Core Material Options

We offer multiple core materials to optimize performance:

• Silicone core for temperature extremes
• Viton® core for chemical resistance
• FKM core for high temperature
• EPDM core for steam service
• Custom core materials available
• Spring energized options
• Hollow core designs

Common Applications

Our PTFE Encapsulated components excel in:

• Chemical processing
• Pharmaceutical manufacturing
• Food and beverage processing
• Semiconductor fabrication
• Aerospace systems
• Medical devices
• Analytical instruments
• High-purity fluid handling

Manufacturing Capabilities

McDowell & Company produces precision PTFE Encapsulated components:

• Custom O-rings
• Face seals
• Lip seals
• Piston seals
• Rod seals
• Valve stem seals
• Custom profiles
• Spring-energized seals

Design Features

Available design options include:

• Standard and metric sizes
• Custom cross-sections
• Spring energization
• Special profiles
• Custom geometries
• Surface treatments
• Color coding options
• Enhanced PTFE formulations

Frequently Asked Questions

What makes PTFE Encapsulated seals unique?
These seals combine PTFE’s chemical resistance with an elastomer core’s resilience, offering superior performance in aggressive environments.

How do I select the right core material?
Our engineering team helps select the optimal core material based on your application’s temperature, pressure, and chemical exposure requirements.

Are custom sizes available?
Yes, we manufacture custom sizes and profiles to meet your exact specifications.

What industries commonly use PTFE Encapsulated seals?
These seals are widely used in chemical processing, pharmaceutical manufacturing, food processing, and semiconductor industries.

Quality Assurance

• Material certifications
• Dimensional inspection reports
• Surface finish verification
• First Article Inspection (FAI)
• Certificate of Conformance (COC)
• Lot traceability
• Quality documentation
• Validation support

Engineering Support

• Material selection guidance
• Design optimization
• Custom solution development
• Prototype manufacturing
• Performance testing
• Documentation support
• Failure analysis
• Application engineering

Contact our sales team today to discuss your PTFE Encapsulated component requirements. With over 50 years of experience in precision manufacturing and sealing technology, we deliver solutions that meet your most demanding applications.