Delivering Fluid Sealing Solutions Since 1972

Posts for Materials

British Sealing Solutions

Embrace the Opportunity: Global Demand for British Sealing Solutions Still Strong Looking forward to 2024 and the upcoming general election, whoever assumes power will undoubtedly face a slew of economic and geopolitical hurdles. Yet, amidst these challenges, there lies a golden opportunity for businesses specialising in British Sealing Solutions to thrive on the international stage. Despite the uncertainties looming on […]

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What are Static and Dynamic O Rings?

Knowledge Centre – A Guide To Understand O Ring Fundamentals O Ring applications are divided based on how the surfaces interact: static applications involve sealing between immobile parts, while dynamic sealing occurs when parts move relative to each other. The accompanying illustrations demonstrate Static and Dynamic O Rings sealing scenarios. Dynamic seals play a vital role in situations where machinery […]

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Rod Seals Explained, What is a Rod Seal?

Rod Seal

A Beginner’s Guide To Rod Seals Rod Function: The rod, also known as the piston rod, plays a crucial role in hydraulic cylinders by converting hydraulic energy into linear mechanical movement. It absorbs hydraulic pressure from the piston, transmitting it to the object or load for movement. To ensure smooth movement and prevent metal-on-metal contact with the cylinder head, guide […]

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What is a BSE/TSE Certificate

Detectomer® Quad Rings

TSE Certificates (Transmissible Spongiform Encephalopathy) come packaged with products that could potentially have TSE risk, such as BSA (Bovine Serum Albumin). Still, some people don’t know what the certificate means or why it is so important. If you’re shopping for bovine-derived reagents for your research, you’ve probably come across a mention of being ”TSE Compliant” quite a few times but wondered what […]

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EnDura O Rings


EnDura® Range Perfect For Extreme Conditions M Barnwell Services are one of the UK’s leading stockist and distributor of the EnDura® range. The unique configuration of the EnDura® range makes it particularly suitable for extreme temperature conditions, which could be highly beneficial for industries like Oil & Gas, where the equipment often operates in challenging environments. Seals made from the […]

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Compression Set

Compression set

What is a compression set? In a nutshell, the compression set of a material is the permanent deformation remaining after the removal of a force that was applied to it. ‘Set’ is a term that is used to characterise something that had been deformed by a force and when released does not fully return to its original shape, it has […]

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Elastomers for Food Water and Dairy

NSFANSI 61 overview

Food-grade Rubbers for Hygienic Industries M Barnwell Services understand the specific and very demanding requirements sealing materials must meet in Food, Dairy, and Water industries. Over the last 50 years, we have gained knowledge and expertise in chemically resistant food grade elastomer seals for use with hostile media observed in Clean-in-Place (CIP) and Steam-in-Place (SIP) routines and high-temperature steam sterilisation. […]

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Viton™ O Rings vs Nitrile O Rings

Viton™ O Rings vs Nitrile O Rings

Comparison of two of the most commonly used elastomers – Viton™ O Rings vs Nitrile O Rings As two of the most widely used elastomers, Viton™ (FKM/FPM) and Nitrile (NBR) have some great properties. Both provide a supreme compression set and have an extensive range of purposes in both domestic and industrial installations. Nevertheless, they’re not totally equal in their […]

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PS-SEAL® Non-Standard lip materials

PS-SEAL® lip materials and configurations

Garlock PS-SEAL® Non-Standard lip materials for dynamic applications For a number of years, Garlock’s Fluoroelastomer (FKM/FPM) PS-SEAL® Standard with a GYLON® Black lip is known for its industry-leading reliability when sealing critical applications. However, when the sealing requirement requires an alternative solution to an FKM, Garlock also created the PS-SEAL® Non-Standard. Generally, the Garlock PS-SEAL® Non-Standard seal can be easily […]

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Sealing products for the Semiconductor Industry

Sealing products for the Semiconductor

Sealing products for the Semiconductor manufacturing industry M Barnwell Services offers an extensive range of Semiconductor Seals that can operate in deposition, etch, ash/strip, plasma, wet chemical and thermal processes. These products can be used within the semiconductor and related manufacturing industries: Logic and memory MEMS HBLED Power Devices Solar cells (crystalline, multi-crystalline, concentrator) Flat-panel display Optoelectronics LED/ OLED We […]

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