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


Temperature range of Viton®

Viton® (FKM/FPM) temperature range Fluoroelastomers are known for their excellent resistance to chemicals and temperatures. […]

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Circlips what are circlips

What are Circlips, types of Circlips and what are they used for? What are Circlips? […]

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What is Rapid Gas Decompression (RGD)

What is Rapid Gas Decompression (RGD)? What are the causes? How it affects elastomers? What […]

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Why should you use Food-Grade Silicone?

Silicone compliant with Food Regulations, what are the features? There are plenty of options when […]

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Guide to Sour Gas products

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Temperature range of Viton® (FKM/FPM) - check in our latest blog post -