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Silicone Gaskets


Viking Extrusions Ltd are suppliers of high quality silicone rubber gaskets. We are able to design and provide a comprehensive range of silicone gaskets, sleeves, seals and washers manufactured to your specifications.  We aim to continuously exceed the expectations of our customers through providing quality products at competitive prices, delivered on time with remarkable customer service throughout the entire process.


Viking Extrusions can supply gaskets manufactured from both solid silicone and silicone sponge, available with and without acrylic based self-adhesive backing. Silicone washers can be stamped from a strip using a punching machine or parted from silicone tubing using modern precision cutting machines that ensure tight tolerances are maintained.

Depending on the specification of the gasket being produced the following techniques can be chosen from to ensure consistency and precision:

  • Die Cutting
  • Waterjet Cutting  
  • CNC Cutting
  • Laser Cutting

Quality Control

Our quality control system to BS EN ISO 9001:2008 guarantees that any gaskets supplied are finished to a high quality and have been thoroughly checked to ensure they have been manufactured to the required tolerances. Our technical advisors are always available to make sure that gaskets supplied are tailor made to suit their specific application.


Silicone gaskets are often chosen for their stability over a wide temperature range, they have excellent resistance to chemicals, fire, fungal growth, aging and ozone. Mechanically, silicone has outstanding tensile strength, elongation, tear strength and compression set. Silicone is versatile with a long service making it suitable for a diverse range of applications. Specific properties of our general purpose silicone include:

  • Long service life over a wide range of temperatures (-70⁰C to +200⁰C)
  • FDA Approval 21CFR 177.2600
  • Odourless and Tasteless
  • Ozone and UV Resistance
  • WRC approval M103580/A-H
  • Certified to USP Class VI.

We also offer two flame retardant grades developed for mass transit and aerospace grades which meet the following specific requirements:

VFR(2) (mass transit)

VFR603 (aerospace)

BS EN ISO 4589-3 1996 (Category 1A conformity)

FAR/JAR 25.853



FAR/JAR 25.855


NF F 16-101 & NF F 16-102 Classification: F0



Other grades available include: platinum cured, metal detectable, high temperature, high tear strength, silicone sponge. We are happy to advise on the best grade for your specific application. 

We are able to offer these grades in a range of colours (including a colour matching service) and a range of shore hardnesses. We have the technology and expertise to provide a bespoke and high quality solution no matter your application. 

For more information or to discuss your requirements please contact one of our technical advisors.