Silicone Sponge for Mass Transit Interiors

kSil® V-0 is a closed cell, lightweight silicone sponge that has been specially formulated for mass transit interior applications:

  • Door Seals
  • Electronic Enclosure Seals
  • HVAC Seals & Gaskets
  • Vibration Dampening
  • Sound Block
  • LED Gaskets
  • Gap Fillers

Approved and compliant to European EN 45545-2 and American NFPA 130 fire and smoke safety specifications, it is the complete silicone material. With low smoke, low toxicity compliance, flame resistance to UL94v-0 and low compression set allowing for excellent sealing properties, kSil®V-0 is our most versatile solution yet.


kSil®V-0 Features & Benefits

  • EN45545-2 (HL3): European Flame and Smoke Standard
  • NFPA 130 – ASTM E662, E162 & C1166: US Flame and Smoke Standard
  • Bombardier SMP 800C: Toxic Gas Generation Specification
  • UL94V0 Approved: International Flame Resistance Standard
  • Extreme Temperature Resistance: -60°C to +230°C (-76°F to 446°F)
  • Low Compression Set: Maintains excellent seal integrity
  • Excellent Sealing Capability: IP67
  • Closed Cell Sponge: Prevents water, dust and moisture ingress.
  • *Wide Range of Thickness: 2.0mm – 45mm (0.0625″ – 1.75”)
  • Wide Range of Densities: 150kg/m³ to 600kg/m³ (Super-Soft to Firm)
  • Available in extrusions: expanSil™V-0
  • Available in solid sheeting and extrusion: kSil®V-0 70

*Thickness dependent on density.

Specialist in Silicone Materials for Rail Applications

kSil® silicone sponge sheeting materials provide high performance sealing and dampening for rail interior applications.

Approved and specified to rail industry standards such as ASTM E662, E162, European EN 45545-2, BS 6853 Category 1 and NF F-16-101 I2 F0, they are formulated and designed to withstand extreme temperature and environment stresses whilst improving passenger safety by meeting fire and smoke safety approvals.

Silicone EV Batteries Seals

Thanks to significant advances in technology, more automotive manufacturers than ever before are recognising the many benefits that come hand in hand with EV car batteries, especially when it comes to optimising longevity, durability and performance.

Some of the main advantages of using kSil®V-0 silicone sponge for EV battery seals are its excellent sealing performance and high temperature resistance.

With high-performance sealing properties, extreme temperature resistance and ability to prevent water, moisture and dust ingress, it’s no surprise that engineers choose kSil®V-0 silicone for EV battery seals.

If you require any further information about silicone EV battery seals, please do not hesitate to get in touch.

kSil™V-0 Features & Benefits

Door Seals

kSil™V-0 provides the sealing protection needed for rail carriage door seals. With its low compression set and dimensional stability, kSil™V-0 ensures excellent sealing performance lasting throughout the train’s lifespan.

LED Lighting Gaskets

LED lighting enclosures need to be protected from a range of elements from water, dust and moisture to high temperatures, which is why kSil™V-0 is formulated to protect from all of them. Its closed cell structure prevents water, dust and moisture ingress to IP66.

HVAC Seals & Gaskets

HVAC systems within rail carriages are designed to withstand heat fluctuations and varying degrees of vibration. kSil™V-0 has been specially formulated to withstand extreme temperatures from -60°C to +230°C, whilst sealing to IP66.

Flooring & Gangways

kSil™V-0 provides excellent vibration and acoustic dampening as well as low compression set properties for rail flooring. Due to its compact, closed cell structure, kSil™V-0 effectively absorbs vibration and provides protection to train flooring systems.

EN45545-2 (HL3)

European Flame and Smoke Standard

NFPA 130

US Flame and Smoke Standard

Bombardier SMP 800C

Toxic Gas Generation Specification

UL94V-0 Approved

International Flame Resistance Standard

Extreme Temperature Resistance

-60°C to +230°C (-76°F to 446°F)

Low Compression Set

Maintains excellent seal integrity

Excellent Sealing Capability


Closed Cell Sponge

Prevents water, dust and moisture ingress.

Wide Range of Thickness

2mm - 45mm (1/16 - 2”)

Wide Range of Densities

150kg/m³ to 600kg/m³

Available in extrusions


Available in solid sheeting and extrusion

kSil™V-0 70

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Technical data is available on all Silicone Engineering products. For more details, download the product information or speak to one of Silicone Engineering’s dedicated specialists.

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