
Fire-resistant sealing systems, edge protection profiles and functional elements made of silicone and silicone foam - safe, durable and specially developed for fire protection in railway vehicle construction (low smoke - low tox).
DIN EN 45545-2
Grown from German quality - at home worldwide
175,000 standard articles
Everything from a single source
From the sketch to mass production
Profiles and seals to protect against heat, abrasion or short circuits – BIW develops components for railway technology directly in line with the requirements of series production. Our development teams think in terms of approvals, specifications and series processes right from the start.

Silicone made for railway technology
Our silicone compounds are tailored to the high requirements of railway technology – temperature-resistant, self-extinguishing, low smoke gas. Compounded in-house, customised to your application.

Prototyping under real conditions
With our own lines for sampling and series-identical technology, we ensure fast, reliable results. Your idea becomes a production-ready solution in the shortest possible time – without any detours.

Standards included
BIW supplies railway technology companies worldwide – with system solutions that meet the high requirements for fire protection in the rail vehicle sector thanks to the variety of compounds.

Discover suitable products
Solutions for many other areas of application
We accompany you through every step of your development
- Production-related advice in >24 hours
- Technical support without detours




More than 2.5k+ customers trust in our collaboration

Frequently asked questions about our silicone solutions for the railway industry
Here you will find answers to frequently asked questions at lightning speed. You can contact us at any time by e-mail.