Delivering Fluid Sealing Solutions Since 1972

Silicone O Rings (VMQ)

Silicone O Rings (VMQ) UK – Available From Stock

M Barnwell Services stock a vast range (over 50 million pieces) of O Rings and Back-Up Rings and regularly supply Silicone O Rings to over 500 customers.

All our Silicone (VMQ) seals offer a wide temperature range and have excellent resistance to ozone, weathering, and aging as well as good insulating and physically neutral properties. If you are unsure about which product is right for your application contact our experienced team who will guide you through the process.


Compared with other elastomers, the mechanical properties of Silicone rubber are often lower in tensile strength, with the addition of poor tear and wear resistance. However, it does have good cold flexibility from –60°C to +250°C and is resistant to water up to 100°C. This makes it an ideal property for the Food and Drink, Brewing and Bottling, and Pharmaceutical industries.

Chemical Resistance includes engine and transmission oil, animal and vegetable oil and grease, non-petroleum-based brake fluids, fire-resistant hydraulic fluids, hi molecular weight chlorinated aromatic hydrocarbons, moderate water resistance, and diluted salt solutions.

Due to its properties, we do not recommend Silicone for applications involving superheated water steam (over 121°C), acids and alkalis, low molecular weight chlorinated hydrocarbons, aromatic mineral oil, hydrocarbon-based fuels, and aromatic hydrocarbons.

For further material detail about Silicone O Rings and VMQ O Rings visit our Material Properties page. In addition to O Rings, we also stock a range of Silicone Cord and Silicone Gaskets.

If you would like more information, download our catalogue, or contact a member of the team.


No limitation to dimensions with over 10,000 different sizes available from stock. Bag or selection box upon request


Silicone (VMQ)


O-Ring Metric and Imperial Kits, Selection Boxes, Splicing Kits & Top-up Bags are available

Bespoke O Ring Kits and selection Boxes are also available

Associated Products

Encapsulated O-Rings (FEP/PFA), Lube, Gauge / O Ring material tester, Quad Rings® (X-Rings) / Nu-lip Rings, O-Ring Cord, Tube, Anti-extrusion Rings, Splicing Kits, Back-up Rings, Anti-extrusion Rings, Lubricants and Adhesives