Delivering Fluid Sealing Solutions Since 1972

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Seals For The World

ASCENSION island

The Sun Never Sets On A Barnwell Seal In August the M Barnwell Services Export department supplied a range of specialist O Rings to their 69th and most remote location – Ascension Island. Ascension Island is an isolated volcanic island, south of the Equator in the South Atlantic Ocean. It is about 1,000 miles from the coast of Africa and […]

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Wet Chemical Process

Semiconductor Manufacturing – Wet Chemical Process Electro or Electroless Chemical Deposition Despite the fact that this is a smaller division of the semiconductor chip manufacturing industry, it still plays a crucial role. Wet chemical processes are used in etching, cleaning, and other stages in chip manufacturing. Wafers can be cleaned and rinsed after the first wafer preparation. In this stage, […]

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KTW certification

KTW certification

What is KTW certification? Drinking water is one of the most controlled food products. The product materials in contact with drinking water can generate microbial growth and impurities/contaminants. This, in turn, creates a serious health risk and also a threat to the environment. KTW (Plastics in Drinking Water) KTW (plastics in drinking water, Kunststoff-Trinkwasser) is a publication of the German […]

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Ozone damage of O Rings

Ozone Rubber Deterioration O Rings are amongst the most commonly used seals. They come in a wide selection of tough materials, serving a wide range of industries including Pharmaceutical, Food & Beverage, Chemical Processing, Petrochemical and many more. They provide a high-quality seal and reliability for many different fields and are adequate for the most exigent applications. Due to O […]

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Trade Names for Seal Materials

Trade Names for Materials

Trade Names for Materials Using trade names for seal materials is very popular in our division in order to define common materials. The chemical names can be quite difficult to remember and quote. Manufacturers and trade names occur for the chemical names containing the most typical compounds. The material’s chemical name is permanently retained (example: Tetrafluoroethylene-Propylene Copolymer). It is not, […]

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Eddie & Graham Celebrate 25 Years

Eddie

Twenty-Five Years of Service at M Barnwell Services M Barnwell Services, the UK’s leading independent manufacturer, stockist and distributor of fluid sealing products and services has recently celebrated the long service achievement for two of its loyal employees. Big congratulations go to Eddie Crawford (Scotland) and Graham Link (HQ) for completing their 25 years’ service. On Behalf of everyone at […]

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Precision Sealing Solutions

Precision Sealing Products for the Medical Industry M Barnwell Services is one of the UK’s largest stockist, manufacturer and distributors of Precision Sealing products for the Medical industry. For over 45 years our customers benefit from technical expertise and industry knowledge. Together with our manufacturing partners, we continue to develop industry-leading performance on all our products and deliver within short […]

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Oil Seal Failure Checklist

A guide to why your Oil Seal / Rotary Shaft Seal may fail The below Oil Seal Failure Checklist provides information about seals leakage to those involved in the application and maintenance of Rotary Shaft Seals. Identifying and correcting the cause of leakage will assist the trouble-free, efficient and extended operation. There are two parts an Oil Seal / Rotary […]

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What is Oxygen Cleaning

CleanRoomClass1000

What is Oxygen Cleaning / Component Cleaning? Oxygen Cleaning is a method that helps remove a variety of contaminants from components that are intended for use with either liquid or gaseous oxygen. These contaminants include oil, grease, organic or inorganic, and scale and if left alone they can cause blockages and potential risks including fires. Contaminants in an oxygen-rich system […]

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Semiconductor Manufacturing Process

Semiconductor Manufacturing Process

Semiconductor Manufacturing Process Overview: Plasma, Thermal & Wet Processes Synergistic process technologies that have some of the most demanding environments for elastomer materials are etch, ash/strip, deposition, thermal and plasma processing. They are frequently confronted throughout the manufacture of: MEMS Flat Panel Displays (FPD) LED/OLED HBLED Solar Cells (Concentrator, Multi-Crystalline, Crystalline) Logic and memory Photovoltaic cells Optoelectronics Power devices Semiconductor […]

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