Marco Rubber & Plastics is a Leading O-Ring Company

Here’s Why You Should Work with Us as Your Preferred O-Ring Company

Marco Rubber & Plastics Experienced Team and Integrated Systems Deliver Value

Need Parts Fast?
  • O-Rings and Seals on demand
  • Same day shipping from huge inventory network
  • Rapid prototyping and emergency production
  • Experienced responsive service

Request a Quote

Response in minutes or hours depending on complexity.

Need Parts Fast?
Live Personalized Customer Service and Compliance
  • 14,000+ repeat worldwide customers

Personalized value added services and industry-wide customer audited quality compliance delivered by our experienced owner operated team and advanced business continuity technology resulting in faster responses with consistent on time delivery of quality product.

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World's Largest Inventory and Production Network
  • 1,000,000,000+ O-Ring and Seal inventory network of 300,000+ unique Items
  • Advanced integration throughout the worldwide supply market
  • Vast network of redundant contract manufactures
  • One stop resource for all things O-Rings and Seals

Request a Quote

Response in minutes or hours depending on complexity.

Application Specific Performance Products
  • 3000+ and growing specialized materials deliver performance advantages
  • Cheap seals can be costly, when it matters consult our experts
  • Cost effective materials with increased temperature, chemical and sealing performances
  • Non-standard sizes often without tooling or set up fees

Engineering Support and Technical Reference Guides
  • Expert engineering selection and design support
  • Quick reference material comparisons and design guides
  • Reverse engineering and design review services
  • Experienced team dedicated to deliver value


Product inspection services, specialty cleaning, PTFE and other coatings, customized packaging, kitting, private label, vendor integrated inventory management. Standardized and industry specific quality compliance, traceability and certification documentation, FDA, NSF, USP, QPL, 3A, UL, PPAP.


Most Popular O-Ring Size, Design, Material and Technical References

O-Ring Reference Guide Index

Optimized Engineering Infographic

Specialty performance products are quoted, manufactured and delivered with specialty requirements
faster than other suppliers respond to inquiries and often at a lower price than their standard products.

Clock Icon Need line down O-Rings or troubleshooting help fast, we're on it.
Service Icon Engineering product and design service, technical support.
Cost Effective Icon Open to cost effective specialty performance O-Rings, we explain it.
On Time Delivery Icon Advanced Product Selection Guides and O-Ring Quote-Order App.
Ideas Light Bulb Icon We are not catalog order takers, we are expert specialists.
Fast Delivery Icon Worldwide Integrated O-Ring Inventory Network, real-time access.
Shipping Packaging Icon Want low cost commodity O-Rings for disposable use, we stock it.
Marco Rubber Markez Perfluoroelastomers Icon OEM brand specific O-Rings like Kalrez or Parker, we supply it.



Worldwide Reach - Personalized Service

Worldwide Reach

Owner Operated Since 1980

Overhead View of Marco Rubber

Our History

Marco Rubber History Icon

Marco Rubber and Plastics has supplied rubber and plastic components like O-Rings and Gaskets around the world since 1980 to a wide range of markets including Semiconductor, Military, Petro-Chemical and various industrial markets.  MARCO, originally M arine and A erospace R ubber Co mpany, was initially a traditional distributor representing major brands like Parker Hannifin. The big brand service levels eventually became counterproductive so we began our journey to independence in the early 1990’s. Ever since we have been developing a network of partners with unique capabilities that allow us to provide a multitude of products, materials, and situational capabilities to ensure our customers receive the best product and service options available. This network has allowed us to craft our own line of Marco branded materials which utilize the same raw polymers and contract manufacturers as the big brands, but without the overhead and complications that result in high prices in lead times. Our Markez® line of FFKM Perfluoroelastomer compounds offers an alternative to Kalrez® with identical performance at a fraction of the cost. Marco branded product lines are managed by industry experts many with big brand experience who are directly responsible for the design, manufacturing, quality and service. Marco will also supply Kalrez®, Parker Seal, and other big brand products when appropriate. We operate from a 37,000SF warehouse and manufacturing facility 30 minutes north of Boston filled with one of the world’s largest inventories of sealing components. Our integration with top tier contract manufacturers and suppliers allows us to deliver product faster than it takes others to quote.

Our Present and Future

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We appreciate the opportunity to become your new favorite supplier. Our goal is to differentiate ourselves by providing additional value with responsive service, a huge inventory network of quality products, and expert engineering support. Marco leverages cutting edge technology to maximize productivity and uncover competitive price advantages. In addition, we continue to develop market leading online reference tools and documentation. Our expanding web presence allows us to offer discounts for ordering online for a growing percentage of our product line. We offer also offer blanketing and kanban stocking programs to prevent stock out situations and minimize product cost while reducing management workload and thus hidden overhead costs. Our technology tools allow us to integrate with customer systems to semi or fully automate business transactions and further reduce hidden costs. We deliver a competitive advantage for sustainable mutual success.  We look forward to the opportunity to show you why new customers often say: "I wish I found you sooner!"



For those who are interested in even more details

Performance Driven Customers Value Sourcing from the Sealing and O-Ring Specialist

  • Work With an Expert, We Are Not OEM Catalog Order Takers
    65+ Customer specific solutions quoted daily
    14,000+ Repeat customers
    150+ Customer specific order requirements shipped daily
    Millions of parts shipped monthly on time
  • Responsive Experienced Service - Technology Advantage
    Communicate directly with our dedicated team of experts including our expert engineering department empowered to deliver value with customer specific situational product and service solutions. Website requests are typically replied to in minutes or hours depending on complexity.  Voice calls are answered by a live person.  Continually improving technology systems customized to provide our team access to the right information at the right time resulting in faster accurate service.
  • World’s Largest Inventory Network
    Millions of O-Rings and seals onsite available for same day shipping supplemented by an integrated worldwide network of contract manufacturer and qualified supplier inventory. Emergency production runs often delivered faster than some take to process specialty quotes.
  • Advanced Selection - Quote - Order App
    Advanced online ordering and quoting system with wholesale pricing, low order minimums, discounted shipping, powerful selection tools and reference guides.  Submit a detailed quote request from the specific product page for the fastest and most accurate internal collaborative response typically within minutes or hours depending on complexity.
  • Cost Effective Specialty Materials and Products
    Allow us an opportunity to assist you in considering how a custom designed product or specialty material can provide a competitive performance advantage often at lower cost than our competitors standard products. Custom sized O-Rings and basic seals often quoted without set-up or tooling fees. Reverse engineering, inspection and design services are available from our insightful engineering team.
  • Specialty Product Treatments, Services and Compliance Certifications
    Application sealing optimization consulting, product inspection services, product identification, reverse engineering, design assistance. Specialty cleaning, PTFE and other coatings, customized packaging, kitting, private label, Vendor integrated inventory management. Compliance, traceability and certification documentation, FDA, NSF, USP, QPL, 3A, UL, PPAP...
  • OEM Brands and Alternatives
    Independent manufacturer, diversified contract manufacturing partners and integrated OEM branded reseller to competitively supply any brand or cost effective alternatives. Kalrez® O-Rings alternatives, Parker Seal and Chomerics® alternatives.
  • Customer Audited Quality Systems continually improving to get it right the first time
    Customer audited per ISO 9001, Mil-I-45208, and various industry and customer specific requirements. Decades supplying critical sealing components to industries like Military, Nuclear, Semicon, Medical, Aero... We welcome your most demanding quality, compliance, packaging, labeling, cleaning, kitting, JIT or other specialized requirement.
  • Business Continuity Systems
    Redundancy of systems and people in place to remain open for business regardless of what chaos presents itself. Cloud hosted accessible systems including voice allowing service operations from any worldwide location. Redundant internal virtual server environments with redundant data back-ups. Integrated power backup generator with direct access to fiber data internet that remains active regardless of local power. Diversified contract manufacturing partners domestic and worldwide, no customer greater than 5% of total business. Cross trained team of dedicated professionals incentivized to deliver value.
  • Ethical and Conscientious
    We choose to implement the principals of the EICC Code of Conduct set of standards on social, environmental and ethical industry supply chain. Beyond EICC, productivity and resource conservation is a part of our business culture and encouraged at home and throughout our community and world.
  • Owner Operated
    Debt free self-financed with high standards of customer focused accountability striving to be easy to do business with.
    Small enough to provide personalized service and large enough to leverage volume economy of scale.
  • We appreciate the opportunity to earn your trust and business.