O-Rings for High-Performance Needs

Differentiate Your Sealing Performance.

Buy Standard and Custom O-Rings from Experts

Don't Settle for Catalog Commodity O-Rings. Order o-rings from the world’s largest inventory and production network for quick delivery of commodity or specialty materials. With a diversified network of o-ring manufacturers spanning the entire globe, you can rely on Marco Rubber to supply all your o-ring needs, fast and efficiently. Simple online ordering and live customer service further streamline the purchasing process. For specialty requirements such as high temperature or large size, our facilities accommodate o-ring customization with no tooling fees.

Materials from Commodity to Specialty

Markez® Next Generation FFKM Perfluoroelastomer

An Advanced Material For Chemically Resistant, High Pressure & High Temperature O-Rings.

Markez® FFKM delivers similar performance to major FFKM brands, with temperature resistance up to 625 °F, at a significantly lower cost.

O-Ring Customization Examples

  • Nearly Any Size Without Tool Fees
  • Any color or durometer Hardness
  • Medical Grade, USP Class VI, FDA, Drinking Water NSF-61, 3A
  • EMI Shielding, Conductive, Metal Detectable
  • Explosive Decompression
  • Semiconductor
  • Nuclear
  • High Temperature
  • High Pressure
  • Chemical Resistant
  • Internal or Surface Lubrication
  • Specialty Chemical Resistance
  • Extended Temperature Performance
  • EMI Shielding RFI Conductive
  • Coatings and Treatments
  • Specialty Bagging, Labeling, Marking, Kitting or inspection

Popular Material Comparison Guide

The information on this page is to the best of our knowledge accurate and reliable. However, Marco Rubber makes no warranty, expressed or implied, that parts manufactured from this material will perform satisfactorily in the customer's application. It's the customer's responsibility to evaluate parts prior to use.

The temperature ranges presented on this page are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details.


Have Questions About Your Specific Application?

Connect With an Expert
  • Expert product, application and design assistance
  • Trusted by 14,000+ customers
  • Fast response (usually within hours)

Need Parts Fast?

Millions of O-Rings and seals available for same day shipping supplemented by an integrated worldwide network. Emergency production runs often delivered faster than some take to process specialty quotes. Our experienced team responds to basic requests within hours if not minutes and complex same day or next day.

Custom Size Or Specialty Material

Nearly all custom size O-Rings, washers, square rings, and X-Rings in almost every material are supplied without tooling fees. We design and manufacture custom shapes and develop specialty materials to deliver a performance advantage.

Live Customer Service

Communicate directly with our dedicated team of experienced professionals empowered to find creative ways to deliver service solutions. Typical office hours M-F 8:30am-5pm EST and we respond to email in hours if not minutes.

Engineering Assistance

The Marco sales team is backed by expert engineers available for on demand conference calls to offer application specific material and design support.

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