General Purpose Silicone Sponge Gaskets (CF19)

Using our in-house manufacturing facilities, CB Frost can produce silicone sponge gaskets in a wide variety of shapes and sizes to suit your requirements, be it rectangular, square, or circular design, or a much more complex shape, with holes and cut-outs, radius, and angled corners.

General purpose closed cell silicone sponge delivers high performance and long-life span in extreme Ozone/UV environments and has a wide temperature range which makes it the ideal material choice in applications where environmental conditions are unstable or volatile.

Silicone sponge has a fine closed cell structure that allows for a low degree of moisture absorption, whilst a soft and smooth outer skin adds resilience to this material.


Silicone sponge side on

Compared to other closed cell materials, general purpose Silicone sponge has an extremely wide temperature range, withstanding temperatures of between -60 ˚C and +230˚C. As Silicone sponge has excellent resistance to ozone, UV and general weathering, as well as an impressive temperature range, general purpose Silicone sponge gaskets are suitable for use in a wide range of industries including HVAC, lighting systems and electrical enclosures.

Rolls are manufactured 1mtr wide x 10mtrs long in a range of thicknesses, 1.5mm to 12.5mm, and sheets of 1mtr x 1mtr up to 35mm thick. Extruded shapes can be supplied in reels up to 25mtrs long, in line with your design requirements.


  • Excellent UV and Ozone properties

  • Available in white or dark grey

  • Available in various densities and grades

  • Closed Cell

  • Low water absorption (<1%)

  • Good temperature range, -60°C to 230°C

  • Automotive fire rated to FMVSS302

  • WRAS approved for portable water at temperatures up to 85°C

  • Can meet IP ratings with the correct gasket design

  • Certain grades meet FDA approval

Available Grades:

  • GP200 - 195 kg/m³ (Soft)

  • GP250 - 256 kg/m³ (Medium)

  • GP400 - 400 kg/m³ (Firm)

  • GP400 FDA Approved - 400 kg/m³ (Firm)

For more information or advice

call us today on +44 (0) 121 773 8494

  • We can supply general purpose silicone sponge gaskets in any shape, be it a simple rectangular, square or circular design, or a much more complex shape, with holes and cut-outs, radius and angled corners

  • We can produce silicone sponge gaskets in thicknesses ranging from 1.5mm to 25mm thick, all of which are manufactured on our overhead or swing arm presses

  • We cater to supplying both custom one offs and full volume production silicone sponge gaskets

  • For large volume production requirements, we can supply silicone sponge gaskets kiss-cut on rolls, providing the size and shape of your gasket requirements allow for this

  • We can supply all general purpose silicone sponge gaskets as plain or adhesive backed and have a range of adhesive tapes that can be applied to silicone sponge to suit your requirements

At CB Frost, upon request, we can produce silicone sponge gaskets in other colours and special grades, such as flame retardant Silicone sponge. For more information, call our team on 0121 773 8494.


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Friday - 8.00am to 1.00pm

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Unit C1, Matrix Point, Mainstream Way, Nechells, Birmingham: UK: B7 4SN