O-Rings and Basic Seals
Performance Seals
Custom Molded and Gaskets
Engineering Services


  • 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 strives to respond to all inquiries same day or next day, often completing basic requests within hours if not minutes.
  • 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. Voice calls are answered by a live person 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.


  • Marco Rubber & Plastics offers the most diverse material options in the market. We supply O-Rings and seals in any size, material, durometer, color, and specialty performance. Custom material development and design is typically available at no cost.

Customization Examples:

  • Color or Durometer Hardness
  • Internal or Surface Lubrication
  • Specialty Chemical Resistance
  • Extended Temperature Performance
  • EMI Shielding RFI Conductive
  • Coatings and Treatments
  • Specialty Bagging, Labeling, Marking, Kitting or Inspection
  • Industry Compliance (FDA, NSF, USP, NORSOK M-710, Military, etc)
  • Try us, we do it all…