Competitive Pricing.
Globally Sourced.
for Hygienic
Systems
for Extreme
Performance
UK Supplier of O-Rings, Gaskets & Specialist Seals
A Specialist Seal Supplier for UK Manufacturers, OEMs & Distributors
International Seal is a UK supplier of O-rings, gaskets, hygienic seals, metal seals, custom moulded rubber components and specialist sealing products for manufacturers, OEMs, distributors and engineering businesses.
We supply standard and custom sealing components across materials including NBR, EPDM, FKM, silicone, HNBR, PTFE and FFKM. From stocked products to specialist sourcing requirements, our team provides material guidance, competitive global sourcing and dependable supply across the UK and internationally.
We are a specialist sealing distributor rather than a general catalogue house. In practice that means direct sourcing from approved manufacturers, low minimum order quantities, genuine technical input on specification and, where a part has to be made from scratch, a 30-day prototype programme against a typical industry lead time of 60 to 120 days.
What We Supply
Our range covers standard sealing components through to specialist grades for applications where temperature, pressure, chemical exposure, cleanliness or regulatory compliance are critical.
O-Rings & Elastomeric Seals
NBR and nitrile O-rings in AS568, BS1806 and metric sizes, plus EPDM, FKM, silicone and HNBR grades. Micro and miniature O-rings for instrumentation and medical devices, and low-temperature FKM O-rings for sub-zero duties. Non-standard sizes supplied to your inside diameter and cross-section.
Gaskets & Custom Cut Components
Industrial and custom cut gaskets — sheet, flange, PTFE envelope and detectable materials, cut to your drawing, DXF file or sample. Precision knife cutting for accurate profiles with minimal waste.
Hygienic Seals & Sanitary Gaskets
Hygienic seals and sanitary gaskets for food, beverage, dairy and pharmaceutical process systems — Tri-Clamp, RJT, DIN 11851, SMS, Bevel Seat, John Perry, ILC and Camlock profiles, with metal and X-ray detectable options.
Metal Seals
Metal and metallic seals for joints beyond the reach of any elastomer — metal O-rings, C-rings, E-rings, U-rings, V-rings and spring-energised designs in stainless steels and nickel-based alloys.
Specialist & Compliance Grades
FFKM and perfluoroelastomer seals for the most aggressive chemistries, USP Class VI seals for medical and bioprocessing equipment, PTFE seals and components, and FDA and 3-A compliant compounds. Every grade we supply is listed in our sealing compound reference.
Custom Moulded Rubber
Custom moulded rubber parts produced to your drawing or sample, from prototype through to production volumes, including industrial adhesives and sealants where an assembly needs both.
Our Mission & Values
International Seal exists to reliably supply the right sealing component, correctly specified, at a competitive price. We source globally, stock strategically, and apply genuine technical expertise to every enquiry. Our aim is not to be the biggest name in sealing. It's to be the most dependable one.
Backed by over 60 years of combined sealing and engineering expertise, we operate with a direct approach: understand the application, specify the correct solution, and deliver it on time.
Core Focus
- Precision sealing components across a full material and compound range
- Globally competitive pricing with low minimum order quantities
- Technical specification support for standard and custom applications
- Fast stock availability and 30-day prototype supply through our FPS programme
Sealing Products for Demanding Applications
Our sealing range supports demanding operating conditions including elevated and low temperatures, high pressures, aggressive chemical environments and critical process applications. From standard O-rings and gaskets to specialist materials and custom components, products can be selected according to the application's dimensional, material and performance requirements.
Where an application falls outside what an elastomer can tolerate, we can move you up the range rather than sell you the wrong part. Our elastomer temperature range guide and chemical compatibility guide set out the limits of the standard compounds; beyond those, FFKM, PTFE and metal seals cover the conditions elastomers cannot.
If you are not sure which material suits your conditions, send us the process media, temperature range and pressure and we will make a recommendation.
International Seal supplies sealing components for applications where temperature, pressure, chemical exposure, cleanliness or reliability are critical.
We support customers across medical, semiconductor, oil & gas, food & beverage, fluid power and general industrial sectors, helping identify suitable sealing products and materials for each application.
Specifying to Your Exact Requirements
Every sealing application carries its own performance demands, chemical compatibility, pressure rating, temperature range, contamination control, or regulatory compliance. We work directly with customers to understand their end-use conditions and match the correct material, geometry and specification to the application.
How We Work With You
Engineering
- Consulting
- Design
- Applications
- Warehouse stocking
- Simple ERP/CRM
- Transparency
- Fast-Response
- 30-Day Prototypes (FPS)
Our Supply Services
Our supply services are built to reduce procurement complexity and support production continuity.
30-Day Fast Prototype Supply (FPS)
Where a component has to be tooled from scratch, our FPS programme delivers tooled, moulded and inspected parts in 30 days — with a 1% daily credit if we are late. Typical industry lead times for the same work run 60 to 120 days.
That matters most when a design is still moving: it lets you test a real moulded part in the assembly inside a month rather than a quarter, and iterate before committing to production tooling.
Ongoing Supply and Stock
We also offer custom seal kitting, precision gasket cutting, scheduled delivery programmes and dedicated stock-holding for recurring demand. From first enquiry through to ongoing production supply, we handle the process end to end.
Why International Seal?
We are a specialist sealing distributor, not a generalist catalogue house. Our focus is precise: specify the right product, source it competitively, and deliver it reliably. We work directly with customers at every stage, from initial specification through to production supply, so the right seal reaches the right application first time.
- Globally Competitive Pricing — Direct sourcing from approved manufacturers, without compromising on quality
- Low Minimum Order Quantities — Practical for distributors and end users at every volume level
- 30-Day Prototype Supply — Significantly faster than the industry standard of 60–120 days
- Technical Expertise — Material knowledge and application support across every major sector we serve
- Full Material Traceability — Certifications and test reports available on request
Every seal we supply protects more than a joint. It protects uptime, product integrity and your customers' trust in you.
Request a Quote or Talk to Our Team
If you know the part, send us the dimensions, material and quantity. If you do not, send us the application, the process media, the temperature and pressure range, and what the joint has to do, and we will specify it with you.
Drawings, existing manufacturer part numbers, photographs and physical samples are all useful, particularly where you are replacing a seal whose original specification has been lost. One-off requirements, prototype quantities and ongoing production demand are all welcome, and material certification and test reports are available on request.