Teflon®Encapsulated O-Rings by M-Cor Inc:

Teflon® Encapsulated O-Rings: M-Cor Inc., the leading custom manufacturer in the USA, produces a variety of  encapsulated o-rings ,CamLock Coupler Gaskets, and custom extrusions. Furthermore,these products are specifically designed to prevent corrosive fluids and gases from causing damage in tough sealing conditions. We offer a full range of encapsulated o-rings that meet Aerospace Standard, British Standard, Japanese Industrial Standard, and custom sizes as needed. With our quick delivery times and competitive pricing, you can boost your return on investment. For assistance, please call us at 406.227.0477 or send your inquiries to Contact Us.

Prevent Damage from Corrosive Fluids and Gases: Teflon®Encapsulated Silicone and Viton® O-Rings

M-Cor’s Teflon® encapsulated o-rings feature a core made of silicone, Viton, or EPDM elastomers, all encased in a uniform Teflon sheath. This combination allows the o-rings to maintain their shape under pressure and offer chemical resistance against a variety of acids, bases, and solvents. Additionally, these o-rings have low friction, non-stick surfaces, minimal gas release, very low water absorption, excellent electrical insulation properties, durability, and operate over a wide temperature range. They are essential in applications requiring protection against corrosive substances. For more details, see the Physical Properties page.

Overview: Teflon®Encapsulated O-Rings: 
These o-rings resist most industrial solvents, acids, and corrosive materials. For more information, visit our Chemical Resistance Blog.

Applications:
Teflon®Encapsulated O-Rings are perfect for use in harsh chemical environments, such as, in chemical processing, pharmaceuticals, filtration systems, semiconductors, medical devices, and more.

Available Sizes:
We stock cross section sizes ranging from .060 to ..750 inches. This includes all AS568 sizes starting from AS009, preferred metric sizes, and JIS. We also offer larger custom sizes on request.

IN STOCK CROSS SECTION SIZES: .060|.070|.079|.094|.103|.118|.139|.157|.177|.187|.197 .210|.217|.225|.236|.250|.275|.295|.312|.331| .350| .375 | .395 |.437|.472|.500|.551|.591

We can also extrude custom shapes such as square, rectangular, and D-shaped profiles. Minimum order quantities apply.

Specifications:

FDA Compliance, USP Compliant, 3A Standard
The TEFLON® PFA/FEP encapsulation is made from 100% virgin resins that meet FDA part 177 and USP Class VI standards, making them suitable for medical applications.

Application Examples:
In the medical field, these o-rings are ideal due to their chemical resistance, non-contaminating nature, and ability to withstand sterilization. They are widely used in medical devices requiring high hygiene standards. In chemical processing, they are used in reactors, pipelines, and storage containers to withstand corrosive environments. In semiconductor manufacturing, they are chosen for their low outgassing and high purity, helping to prevent product defects.

Conclusion:
M-Cor Inc’s Teflon® Encapsulated O-Rings are versatile solutions for a variety of industries. They offer high chemical resistance, broad temperature tolerance, and robust mechanical properties. Furthermore, their durability and adaptability make them suitable for a wide range of applications, ranging from medical equipment to challenging chemical processing tasks.

While laboratory testing of M-Cor’s ENCAP-O-SEAL™ o-rings is  a valuable screening technique, the final selection for use in applications  must be based on functional evaluations or experience under actual  end use conditions. This has become industry practice dictated by  the many complex aspects of performance in severe conditions