Custom Seals, Gaskets, & O-Rings
Engineered to Spec. Delivered on Time.

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ISO 9001:2015 Certified | IATF 16949 Automotive Quality | ITAR Registered | 30+ Years in Business | 4 Locations — Clarence, Syracuse, Rochester, Toronto

When your production schedule can’t afford a sealing failure, you need a manufacturer who gets it right the first time and ships when they say they will. Seal & Design has been doing exactly that for over 30 years — for automotive, rail, HVAC, defense, and industrial manufacturers across the country.

Getting Custom Parts Right — On Time —
Shouldn't Be This Hard

You know how it goes. You specify a custom gasket or O-ring, wait on a quote, get a lead time that doesn’t work, and then spend weeks chasing updates. When the parts finally arrive, they’re wrong, or they’re late, or both — and now your line is down.

Most sealing suppliers treat custom orders as an afterthought. They’re set up for volume, not for the kind of engineered-to-print work that actually keeps your product functioning the way it was designed to.

That’s the problem Seal & Design was built to solve.

gasket rings, o-rings, and oilseals
Discover your solution

A Sealing Partner Who Treats
Your Deadline Like Their Own

Seal & Design is a global manufacturer and distributor of custom sealing products. We specialize in O-rings, gaskets, seals, molded rubber products, EMI/RFI shielding, thermal materials, and more — engineered and fabricated to your exact drawings and specifications.

Our engineering team works with you from the start — asking the right questions, reviewing your specs, recommending the right material for your pressure, temperature, and chemical compatibility requirements — so there are no surprises when the parts arrive.

And we ship when we say we will. That’s not a marketing line. It’s the standard we hold ourselves to every order, every customer, every time.

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O-Rings, Gaskets, Seals & More
Built to Your Spec

We manufacture a wide range of sealing products using proven engineering and design practices, modern production equipment, and the best materials available. Not sure what material or style you need? Our engineering team will help you figure it out.

O-RINGS

Available in standard and specialty compounds — silicone, Nitrile, fluorosilicone, EPDM, and more. Static and dynamic applications. Imperial and metric sizes. Manufactured to meet the most demanding pressure and temperature requirements.

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o-rings
gaskets

GASKETS

Die-cut, water-jet cut, beaded, and PSA-laminated styles available in rubber, foam, sponge, and metallic materials. Our engineers will work with you to select the right material based on your compression, temperature, and media exposure requirements. Custom packaging and kitting available.

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SEALS

Reliable sealing solutions engineered for long service life and consistent performance. Our offerings include bonded seals, oil seals, rotary shaft seals, and High-performance plastic sealing components 
for critical applications.

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seals
molded products and plastic components

Molded Products & Plastic Components

Custom-molded and extruded components built to your specifications, including grommets, diaphragms, boots, bellows, and complex geometries. Designed for durability, flexibility, and performance in demanding environments.

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Additional Product Lines

EMI/RFI Shielding  |  PTFE Gasketing  |  Thermal Interface Materials  |  Venting Products  |  Loctite  |  3M Products 
Rogers PORON & BISCO  |  Saint-Gobain Materials  |  SKF Spring-Loaded Seals  |  ChamFlex® Fire-Retardant Hoses

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How It Works — Simple, Fast, No Surprises

1 2 3 Send us your drawings, specifications, or just describe your application. If you're not sure where to start, our engineers will ask the right questions to get there. Our team reviews your requirements and recommends the right material, design, and manufacturing method. We use Design for Manufacturing (DFM) practices to make sure what we build works the way it needs to — the first time. We produce your custom sealing products in our facilities and ship on the schedule we committed to. You get what you ordered, to spec, when you need it. Tell Us What You Need We Engineer the Right Solution We Manufacture and Ship On Time
CONTACT US TO GET STARTED

WHY COMPANIES CHOOSE SEAL & DESIGN

to be world-class continuous improvement to customer needs on time, every time quality STRIVE ASSURE LISTEN SHIP ENABLE S A L E S
LEARN MORE ABOUT WHAT MAKES US DIFFERENT

Built for the Industries
That Can't Afford Sealing Failures

We supply to the Automotive, Medical, Military, Aerospace, Electronics, Power Generation, Hydraulics, Mass Transit/Rail, and many other commercial industries. If you need the highest quality products, the best technical support, reliable on-time delivery, and superior customer service, at competitive prices, you need Seal & Design.

We provide high-performance sealing solutions across a wide range of industries:

GENERAL MFG.

Custom sealing solutions for production environments across a wide range of applications. If you manufacture something that needs to seal, we can help you find the right solution.

General Manufacturing Solutions →

HVAC

Gaskets, O-rings, seals, and ChamFlex® fire-retardant hose assemblies designed for HVAC equipment installations. UL recognized. Built to perform in real-world temperature and pressure conditions.

HVAC Sealing Solutions →

DEFENSE &
AEROSPACE

ITAR-compliant gaskets, seals, and military/aerospace spec O-rings for critical applications. Built around demanding material requirements, tight tolerances, and real-world exposure to pressure, temperature, fuel, hydraulic fluids, and harsh operating conditions.

Defense & Aerospace Solutions →

AUTOMOTIVE

From OEM production runs to specialty components, we manufacture sealing products that meet IATF 16949 quality standards and the demanding tolerances of modern automotive applications.

Automotive Sealing Solutions →

MEDICAL

Precision gaskets, O-rings, seals, and sanitary components for medical, pharmaceutical, and regulated environments. Material and compounds available to meet FDA, USP Class VI, 3-A, and NSF requirements.

Medical Solutions →

RAIL/MASS
TRANSIT

Door and window seals, fire-rated ducting, anti-vibration materials, lighting gaskets, acoustical barriers, and more — engineered to meet the specific demands of rail and transit applications.

Rail & Mass Transit Products →

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Certified Quality. Every Order.

Our certifications aren’t checkboxes. They’re the result of the processes and standards we’ve embedded into every order we produce.

  • ISO 9001:2015 — Quality Management System
  • IATF 16949:2016 — Automotive Quality Management
  • ITAR Registered — International Traffic in Arms Regulations (Defense)
  • Rogers Corporation Preferred Converter
  • 3M Preferred Converter
VIEW ALL CERTIFICATIONS
iso 9001:2015
international traffic in arms regulations compliant
iatf 16949:2016
rogers preferred converter

Not Sure Where to Start? Use Our Technical Resources.

Our engineering resources are free to use and built for the people who actually spec sealing products — engineers, designers, and procurement managers who need the right answer, not a sales pitch.

BROWSE TECHNICAL RESOURCES

FIRE RETARDANT HOSES FOR WATER SOURCE HVAC EQUIPMENT INSTALLATIONS

ChamFlex® hoses assemblies are recognized by underwriter Laboratories (UL) under UL 207. The Santoprene tube compound was tested to and awarded a UL 94 V-0 fire rating. Assemblies were tested to ASTM E84 / UL 723 and received a Class A fire rating.

The patented process fusing the tube and wire braid into a one-piece hose increases flexibility, greatly reduces risk of kinking and delivers a tighter bend radius. The 302/304 stainless steel wire braid offers superior abrasion resistance. Hoses are easy to install with a 37-degree JIC flare union — no washers or gaskets to leak or get lost.

Hoses are custom made in our facility to meet your length requirements in 1″ increments. Minimum length is 6″ for 1/2″ and 3/4′, and 9″ for 1″ and 1-1/4″.

Explore ChamFlex