Silicone Sponge Profiles

Viking Extrusions have 30 years’ experience providing silicone sponge profiles to a diverse range of industries in the UK, Europe and Globally. We are ISO9001: 2015 certified and pride ourselves on supplying high quality products at competitive prices, with short lead times.

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Silicone Sponge Profile Manufacturing Capabilities

Silicone sponge profiles are generally bespoke and manufactured to customer specifications. Each profile must be considered on an individual basis. Our experienced team are able to offer design for manufacturability (DFM) assessment of your profile and over advice to improve its suitability for manufacture.

Depending on the size of the profile, we can offer minimum order quantities as low as 10m. We are also able supply large production runs of many thousands of metres. Our silicone sponge profiles can be offered in a range of coil lengths to suit your application.

Silicone sponge is given its cellular structure through the use of blowing-agent additives. These give the material a natural off-white colour. Silicone sponge profiles can be pigmented to achieve most colours including RAL and Pantone numbers. We are also able to offer silicone sponge profiles colour matched to your sample.

As standard, silicone sponge profiles are produced to ISO 3302-1: 2014 E3 tolerances. For some profiles, it may be possible to achieve tighter tolerances. To discuss your project or any requirements you have please contact us to speak to one of our experienced technical team.

Our manufacturing tolerances can be viewed on our tolerances page.

Cut to Length Silicone Sponge Profiles and Joined Rings

We have a selection of in-house cutting equipment and we can supply silicone sponge profiles cut to any length required. We also have a comprehensive range of joining presses and, depending on the tube dimensions, we can supply silicone tubing either glued or vulcanised into rings of any size.

Adhesive Backed Silicone Sponge Profiles

For profiles with a suitable geometry, we are able to supply silicone sponge extrusions complete with adhesive backing tapes applied. Specialist adhesive backed tapes are available on request.

To learn more about our secondary operations capabilities, visit our cut to lengths and joined rings pages.

We supply a range of silicone sponge grades – for all applications.

We are able to offer many different grades of silicone sponge, our general-purpose silicone sponge is available in three densities:


Density (Imperial)

Density (Metric)


16 lb/ft3

250 kg/m3


24 lb/ft3

400 kg/m3


33 lb/ft3

600 kg/m3

We also offer specialist grades of silicone sponge including:

  • FDA Approved – Silicone sponge compliant to FRA 21 CFR 177.2600 section e-f. Supplied in light blue as standard but can be pigmented to other colours.
  • Flame Retardant – specialist silicone grades developed for use in rail and mass transit applications. Compliant to EN45545-2 and UL94 V0.
  • Fluorosilicone – Highly resistant to fuel, oil and solvents. Stable across a large temperature range.
  • Metal Detectable – contains x-ray detectable filings for use in food processing applications.
  • High Temperature – available in three density grades. Supplied in dark grey as standard.

Fore more information on materials supplied by Viking Extrusions, visit our materials page, where technical datasheets are available to be viewed and downloaded.

What are the advantages of silicone sponge profiles?

Silicone sponge is the material of choice for a range of applications across multiple industries due to its many advantageous properties. Silicone sponge offers all of the benefits of solid silicone rubber whilst its cellular structure allows for better sealing at lower compression forces.

Some key properties of silicone sponge include:

Industries that use silicone sponge profiles

Silicone sponge profiles manufactured by Viking Extrusions are supplied to a diverse range of industries worldwide, some of the primary industries using silicone rubber tubing include:

Get in touch with Viking Extrusions

Contact our expert team of silicone engineers for advice, quotations or any other queries.

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