Basalt Combined FIMT

Basalt Optical Fiber Protection

Basalt is an alkaline volcanic rock with several qualities that make it ideal for fiber optic cable protection. It’s elastic, light, and strong. In addition, the Basalt Combined FIMT has a long-life guarantee and is resistant to crush and mechanical wear and tear.

The extra benefits of being lightweight and flexible make it perfect for challenging installations. A polymer sheath layer protects the basalt layer from elements like extreme temperature, further increasing the strength and lifetime of the cable without compromising its flexibility or adding additional weight.

Our basalt optical fiber protection is a durable and lightweight solution that’s perfect for the harsh surroundings of the Military & Defense Industry. Additionally, the cable performs tremendously well in Distributed Temperature Sensing (DTS) and Distributed Acoustic Sensing (DAS) applications.

We approach every project with an open mindset so we can achieve the best results for you. As a result, every solution is entirely customizable, from the fiber, the shape, length, protective material, and every other component. So get in touch today and speak to one of our experts.


Product abbreviation BCF
Cable usage Data Transm. & Sensing
Wall thickness of Basalt Material 1.10 mm
Dimensions of Metal Tube 1.80 mm OD with 0.20 mm WT
Polymer materials Polyamide - RED
Steel materials Wide range possible
Filling compound H2 absorbing optionally
High ultimate tensile strength > 12 000 N
High crush resistance > 29 000 N at 100 mm
Main attribute Ultra-high bending perf.
Approx. Cable weight 39 kg per km and up
Operational temperature range -40°C up to +85°C
Maximum continuous length Up to 2 km

All values, product specifications and other given data are subject to change without notice to improve reliability, function, design or otherwise. Information contained in this data sheet are up-to-date as at the date of issue. As NBG cannot control or anticipate the conditions under which this product may be used, each user should review the information in specific context of the planned use. To the maximum extent permitted by law, NBG will not be responsible for damages of any nature resulting from the use or reliance upon the information contained in this data sheet.

Product overview created by Patrick Weissinger – 21.03.2019

Optical fibers

Metal tube

Stranding wires



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