CBF-Sil V0 Silicone Sponge

Our lightweight CBF Sil-V0 silicone sponge is fully closed cell and has been formulated to improve fire, smoke and safety for the rail industry.

CBF Sil-V0 is compliant with the European fire safety standard EN45545-2 for rail vehicles (more information can be found in the table below). CBF Sil-V0 can be supplied as extruded sponge profiles. Typical applications include LED lighting, door seals, gap fillers, LCD gaskets and HVAC.

CBF-Sil V0 Silicone Sponge thicknesses

2mm, 3mm, 4mm, 5mm, 6mm as standard

Fire Classification  

R1 – Interiors Primary

R2 – Interiors Limited Use

R3 – External Features

R7 – External Features

R8 – External Roof Features

R17 – Cab Housing

R22 – Interior Seals

R23 – Exterior Seals










UL 94 V-0


Specification Typical Values
Polymer: Silicone
Structure: Closed Cell
Colour: Grey
Density: 300 kg/m3 (Soft-Medium)
Temp: -60/+230 °C

**Data as per our current stock grade


  • EN45545-2 approved

  • Low compression set

  • High/low temperature resistance

  • UL94 V-0

  • Closed Cell

  • IP67 (subject to design and testing)

  • Available in custom extruded profiles

Manufacture Capabilities:

  • Gaskets

  • Strip

  • Washers

  • Sheeting

  • Cord

  • Fabrication

  • Extrusion

Our Partners

Dependable on-time
Full lot traceability on
raw material
Rapid lead times on tooling
and products
Manufacturing services from 1-off
to mass production
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Office Hours

Monday to Thursday
8.00am to 4.35pm
Friday - 8.00am to 1.00pm

Get in touch

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