Stabilizer bars

In addition to boosting efficiency and electrifying the drive train, automobile manufacturers are relying on intelligent energy management and, above all, on lightweight design, the business field of IFC Composite. In addition to optimized design, the focus of lightweight design also is on using new materials, such as glass-fiber reinforced plastics (GFRP) or carbon-fiber reinforced plastics (CFRP), for structural components. This also includes stabilizer bars made from fiber composites.

Stabilizer bars are one of the four main business areas of IFC Composite. The argument used by research and development: fiber composite stabilizer bars achieve a wider range of stiffnesses and, naturally, a significant reduction in weight.

The engineers from the innovative leader IFC Composite have already implemented numerous projects involving fiber composite stabilizer bars for cars. Some of the development concepts have already passed into the vehicle testing stage. The requirements in the installation space could no longer be met using standard stabilizer bar solutions for these projects. This speaks for the design benefits of lightweight design.

To date, 100 percent of stabilizer bars consist of steel. The market is divided into solid and hollow stabilizer bars. Stabilizer bars will remain a relevant comfort feature in future vehicle concepts, too. However, in light of the possible high-tech lightweight design solutions, IFC Composite wants to establish fiber composite stabilizer bars as a better solution in modern vehicles.

Resin systems

Resins are the matrix materials in the manufacture of fiber-reinforced plastics. There are various resin systems. Those that use epoxy resins are solvent- and filler-free two-component systems. They harden at different speeds depending on the combination of resin and hardening agent.


Epoxy resins can be used to produce extremely accurately fitting parts. As a result of the low residual stress due to shrinkage, very good fatigue strengths are achieved. Epoxy resins stand out not only thanks to their long service life despite high levels of stress, but also thanks to their low weight and high chemical stability.


Epoxy resins are significantly more expensive than other resin systems, such as polyester and vinylester resins. These are not as high-quality as epoxy resins, but are cheaper.