Encapsulated O-Rings Manufacturer
Encapsulated O-rings manufactured in the USA using FEP and PFA fluoropolymer jackets with silicone or FKM cores. M-Cor produces precision encapsulated O-rings for semiconductor, pharmaceutical, and chemical processing applications where chemical resistance and dimensional control are required.
Why Engineers Choose M-Cor
M-Cor is a U.S.-based manufacturer focused on precision, repeatability, and engineering-driven sealing solutions. We support critical industries where failure is not an option.
- Close-tolerance manufacturing
- In-house elastomer extrusion
- Advanced inspection and measurement systems
- Full traceability and documentation
Learn more: Why Choose M-Cor
Engineering Tools & Technical Resources
- Tolerance guidance and engineering data
- Material comparison tools
- Groove and design support
- Performance calculators
View Engineering Resources
Explore Encapsulated O-Rings
Serving Critical Industries
Our sealing solutions are used in applications where reliability, chemical resistance, and precision are essential:
- Semiconductor manufacturing
- Pharmaceutical and bioprocessing USPVI/FDA Compliant
- Chemical processing
- Aerospace and high-performance systems
Manufactured in the USA
M-Cor is a true U.S. manufacturer with decades of experience producing precision sealing components. Our controlled processes ensure consistent quality, reliable lead times, and direct engineering support.
Request a Quote or Speak with an Engineer
If your application requires precision sealing in demanding environments, M-Cor can provide engineered solutions tailored to your specifications.
Call 406-227-0477
📩 customerservice@m-cor.com
Encapsulated Sealing Solutions
Encapsulated O-rings are our primary product, with additional sealing solutions available for specialized applications.
Encapsulated O-Rings FAQ
What are encapsulated O-rings made of?
FEP or PFA fluoropolymer jacket over a silicone or FKM core for chemical resistance and sealing force.
Are encapsulated O-rings molded or cut to length?
Most are cut-to-length, not molded, which affects tolerances and roundness.
See: Encapsulated O-Ring Tolerances
When should encapsulated O-rings be used?
When chemical resistance is critical—common in semiconductor, pharmaceutical, and chemical processing systems.
