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News 4 Aug 2026

Die-Cut vs. Waterjet Cut Silicone Gaskets

What’s the best choice for your production run? Selecting the right material is critical for manufacturing high-performance seals, but how...

News 23 Jun 2026

Rolling Stock Networking: Connect with CB Frost at RSN 2026

At CB Frost & Co, we don’t believe in waiting around when a great opportunity knocks. That is exactly why...

Smoke Seals

Rail

CB Frost have a range of fire safe soft foam materials for use in rail vehicles that are compliant to EN45545-2 specification and help prevent the spread of smoke through ceiling/partition compartments in case of an emergency.

BISCO® MF1-55 Silicone Foam

MF1-55 white silicone foam is used for its superior resistance to compression set and ability to be squashed into small/large voids then recover to its original fabricated shape stopping the spread of smoke through ceiling/panel compartments.

BISCO® BF1000 Silicone Foam

BF1000 is a soft density white or grey silicone sponge with a skin on both faces. With its superior compression set and compliance to Fire, Smoke and Toxicity standards such as EN45545-2 and BS6853, this material is ideal to fill voids helping stop the spread of smoke through ceiling/partition compartments.

BISCO® BF2000 Silicone Foam

BF2000 is a black ultra-soft density silicone sponge with a skin on both faces. With its superior compression set and compliance to EN45545-2 and BS6853 Fire, Smoke and Toxicity standards, This material is ideal to fill voids helping stop the spread of smoke through ceiling/partition compartments.

Rail specialists

Explore other rail sectors

With over 40 years of experience within the rail industry, CB Frost & Co is your first-choice partner for an array of rail applications.

Acoustic Barriers

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Door Seals

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Gap Fillers

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HVAC Seals

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LCD Display Gaskets

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Lighting Enclosure Gaskets

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Seating Cushions

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Smoke Seals

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Vibration Isolation

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Partitioning

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Our vision for the future is to continue to be an efficient, well organised company that produces and supplies quality products, remaining as a market leader, whilst respecting the environment always.

Smoke seals

Smoke Seals sample request

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