Silicone Sponge Strips

Viking Extrusions have 30 years’ experience providing silicone sponge strips 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.

Silicone Sponge Strip Manufacturing Capabilities

We are able to supply silicone sponge strips in the following sizes:

  • From 2mm minimum to 50mm maximum thickness
  • From 3mm minimum to 90mm maximum width

If your application requires a wider strip than can be extruded, it is possible to cut silicone sponge sheets to size. For more information visit our silicone sponge sheeting page.

We are able to offer minimum order quantities as low as 10m, depending on the size of the sponge strip. We are also able meet the demand for large production runs of many thousands of metres. Silicone sponge strips can be supplied in a range of coil lengths depending on the size of the strip.

Silicone sponge contains blowing-agent additives to give it its cellular structure, these result in a natural off-white colour. However, silicone sponge can be pigmented to achieve most colours, including both RAL and Pantone numbers. We are also able to offer colour matching of silicone sponge strips to your sample.

As standard our silicone sponge strips are manufactured to ISO 3302-1: 2014 E3 tolerances. In some circumstances it may be possible for us 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 Strip and Joined Rings

As well as being supplied in coils, we can supply silicone sponge strips cut to any desired length or joined into rings to form gaskets. We are also able to perform mitre cuts and angled joins to create more complex fabricated silicone gaskets.

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

Adhesive Backed Silicone Sponge Strips

We are able to supply silicone sponge strips complete with adhesive backing tapes applied. Specialist tapes are available on request.

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:
Grade Density (Imperial) Density (Metric)
VDG16 16 lb/ft3 250 kg/m3
VGD24 24 lb/ft3 400 kg/m3
VGD33 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/span> – 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.
For 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 strip?

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 strips

Silicone strips 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.