Delivering Fluid Sealing Solutions Since 1972

Unrivalled Technical Support

Over 40 years of engineering knowledge and development

35,000 Stock Lines

The UK’s largest stockist and distributor of fluid sealing products

International Distribution

Over 5,000 customers globally depend on our services

Total service guaranteed

Quality accredited inspection process

The UK’s Leading Independent Stockist, Manufacturer and Distributor of Fluid Sealing Products and Services

Founded in 1972, M Barnwell Services is a family business and prides itself on providing expert industry knowledge, technical expertise, products and services to over 5000 customers globally. They include established partnerships with the Worlds leading OEMs in Automotive, Agriculture, Construction and Compressor Pump and Valve. Our range of fluid sealing products include O Rings, Oil Seals, Rotary Shaft Seals, Hydraulic Seals, Hygienic (FDA) SealsPneumatic Seals, Gaskets, Fasteners, Sealing Kits, Shaft Repair KitsSpecial Rubber Mouldings, D Rings and many more.

We aim to work in partnership with you to reduce your supplier base, inventory and long-term costs. Applying our unique product knowledge to your specific needs, we will always offer the right sealing solution for your industry and application.

We have a selection of fluid sealing products available to buy online – Visit Our Shop

About Us Case Studies


Guide to Seal Installation

Expert advice on seal installation The first step to having an efficient and lasting part […]

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International O Ring Sizes

O Ring Sizes An O Ring (also known as Toroidal Seal) is the most popular […]

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Conversion Formulas in Sealing

Below Formulas can be used to convert your required metrics. Cross Section CS = (OD […]

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What is Rubber Shrinkage?

What you need to know about Rubber Shrinkage The calculation of O Ring squeeze is […]

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GARLOCK Gylon Seals

Exceptional sealing performance for Pharmaceutical and Food and Beverage processing processes and applications.

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Check out our Guide to Seal Installation article - #sealing #sealing