powerRibs – composite reinforcement

High relevance due to less weight & cost

powerRibs is an extremely light natural fibre composite reinforcement material showcasing outstanding performance in a sustainable way. It is designed to create a rib structure on one side of a thin-walled shell element, in order to triple flexural bending stiffness by adding minimal weight.

Compared to other traditional composites, powerRibs material also possesses excellent damping properties and offers a competitive price. Besides that, natural powerRibs flax grid is friendly to the environment and has comparatively low rates of CO2 emission, water usage and embodied energy.


powerRibs effect is inspired by leaf-veins. Instead of the nervures though, here at Bcomp we use flax fibre ribs to reinforce the structures. This leads to a “pseudo mini sandwich” concept, as no core material is involved. 

For creating composites, powerRibs can be easily combined with flax, glass or carbon fibre fabrics. During the operation, the flax yarn placement is carefully controlled in order to obtain an application-specific mesh structure. The flax fibre quality, yarn thickness and twist are all tailored to reach optimum mechanical properties in the final composite part, which result in: 

  • tripling the flexural rigidity and buckling resistance; 
  • lowering environmental impact, cost and weight; 
  • increasing resistance to vibrations;
  • increasing damping properties by 250% (see the charts on the right side).

Depending on the final application, two powerRibs processing technologies are available:

  • a sophisticated thermoplastic version for interior automotive parts and luggage shells; 
  • thermoset-based version for the production of automotive body and space parts.

powerRibs makes composites stiffer   less weight and cost with powerRibs