M-Cor Teflon Encapsulated O-ring
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Teflon® encapsulated o-rings manufactured in the USA by M-Cor Inc. Stock the encapsulated o-rings your customers trust. M-Cor offers industry-leading margins and the lowest return rates in the business. Our USA-made quality, rapid fulfillment, and comprehensive product line help you maximize inventory turns while building lasting customer relationships.

Teflon Encapsulated O-rings: Leading US manufacturer: M-Cor Inc. We have been manufacturing Teflon® encapsulated o-rings, CamLock encapsulated gaskets, and related products since 1987. Additionally, our commitment to coming up with high-quality products, competitive pricing, and maintaining a good rapport with our customers have made us an industry leader. View our Products Page.

Teflon® Encapsulated O-Rings Lock out Corrosive Fluids and Gases

 

Your Trusted Partner for High-Performance Sealing Solutions

M-Cor Inc. has been the leading U.S. manufacturer of Teflon® encapsulated O-rings, precision gaskets, and advanced custom extrusions since 1987. Our products are specifically designed to meet the most demanding requirements of critical industries, including biologics, pharmaceuticals, aerospace, and semiconductors.


Why Choose M-Cor?

  • Unmatched Quality: We set the industry standard with close-tolerance encapsulated O-rings that exceed expectations in extreme environments.
  • Made in the USA: Unlike offshore competitors, we proudly manufacture all our products in the United States, ensuring reliability and consistent quality.
  • Custom Solutions: From standard sizes to complex geometries, we specialize in crafting solutions tailored to your needs.
  • Certified Excellence: M-Cor digitally measures and certifies every product, offering full transparency for mission-critical applications.

Innovative PFAS-Free Solutions

In collaboration with our supply chain partners, we have developed a PFAS-free EPDM compound as an environmentally friendly alternative to traditional fluoroelastomers. This groundbreaking solution delivers exceptional performance for up to 85% of FKM applications.


Products We Offer

  • Teflon® Encapsulated O-Rings: Ideal for sealing in extreme conditions.
  • FFKM O-Rings: For unmatched chemical resistance and high temperatures.
  • CAM Gaskets for quick couplers
  • Extrusions: FKM ,Silicone, EPDM in cord ,tubing or complex geometries. Designed for durability and precision.

Industries We Serve

  • Pharmaceutical Manufacturing
  • Biotech & Life Sciences
  • Semiconductor Production
  • Aerospace & Defense

Commitment to Excellence

At M-Cor, we combine decades of expertise with advanced manufacturing techniques to deliver products that perform when it matters most. Our dedicated quality control process, certified by industry standards, ensures every product meets your specifications.


Let’s Work Together

Whether you need a standard solution or a custom design, M-Cor Inc. is here to help. Contact us today to discover how our innovative sealing solutions can improve your operations.

Teflon® Encapsulated O-Rings: USA MANUFACTURER

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Encapsulated O-Rings

FEP and PFA Encapsulated O-rings manufactured to AS/BS/JIS or preferred metric and custom sizes starting at.204″/5.18mm inside diameter to unlimited.
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Teflon FEP and PFA Encapsulated Cam Lock Gaskets

Encapsulated cam lock gaskets for cam and groove couplers from 1/2″ to 4.00″

Micro Encapsulated O-Ring

Micro Teflon encapsulated o-rings with inside diameters as small as .187″ / 4.75 mm

Extrusions

M-Cor Inc extrudes close tolerance extrusions in FKM,Silicone and EPDM. Round , square, rectangular or complex polygons.

M-Cor Inc

M-Cor Inc celebrates 36 years as a manufacturer / supplier of  Teflon® encapsulated o-rings,Teflon encapsulated gaskets and extrusions to the global sealing industry since 1987. We look forward to servicing your needs, please contact via email: customerservice@m-cor.com or telephone 406.227.0477