What others simulate, we build for real
With four fully equipped extrusion lines and accelerated processes, we deliver what others promise: functional prototypes, manufactured close to series production and documented in accordance with standards.
Technical feasibility begins with clarity
We support our customers from the initial enquiry through the use case to application-specific development. BIW’s development department works closely together to create customised technical solutions. An interdisciplinary team with a wide range of specialist and industry backgrounds ensures that tasks are considered holistically and from unconventional perspectives.

The right silicone does not develop by itself
We develop our own materials and compounds that are customised to meet the specific requirements of our customers. In this way, we ensure that the mechanical, thermal and chemical properties are optimally tailored to the respective application.

Prototyping with production requirements
BIW operates four fully equipped extrusion lines for initial sampling, technically identical to the series systems, in order to qualify prototypes efficiently and in accordance with standards. Thanks to innovative manufacturing processes such as 3D printing, crosshead, foam and co-extrusion, around 95% of all prototypes can be implemented quickly – including new cable protection systems and moulded parts.

From component to reliable series
Various methods for material testing and industry-typical test requirements, such as mechanical properties and the ageing and fire behaviour of products, are available in the laboratory. For further tasks that go beyond our own capabilities, we have good connections to external research and testing facilities.

Series quality right from the start
Thanks to our four specially equipped extrusion lines, which are technically identical 1:1 to the series systems, prototypes can be produced directly under series conditions and formally qualified in accordance with applicable standards. This ensures a smooth transition from the idea to series production.

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
Here you will find answers to frequently asked questions at lightning speed. You can contact us at any time by e-mail.