Green transition through renewable energy

Here at Fiberline Composites, we feel it is important to take responsibility and do the right thing for the environment. We do our utmost to use our resources efficiently and to protect the environment as best we can. At the same time, we also give our customers the option to create sustainable growth by using us as a part of their value chain.

A sustainable choice

At Fiberline Composites, we are keen to facilitate our customers’ increasing demands for sustainable growth. By using an energy-efficient production process and operating close to our customers, we can be part of a sustainable value chain. Our pultrusion lines run 24/7 and we have a capacity of several thousand tons a year on our factories in Denmark and China.


Our production process is the most cost-effective way of converting fibres into profiles while ensuring products with a minimum of variation. Furthermore, the mechanical properties allow our customers to save significant amounts of material. We can supply the profiles in customized resin systems such as polyester, vinylester, or epoxy.



Energy-efficient production

Our profiles are manufactured using a continuous process known as pultrusion. This production method effectively limits the evaporation of volatile compounds by using a closed process. At the same time, the hardening process also generates heat through what is known as an exothermic reaction, which keeps energy consumption per unit produced to a low level. We also strive each and every year to bring down our own energy consumption per unit produced even further.

Energy-plus factory

Our factory in Middelfart has the best environment profile attainable – energy plus. The building is well insulated, has a very low level of energy and heat consumption, and its ventilation and lighting are carefully adapted to actual needs. Moreover, our factory has fibreglass window frames which give them insulation properties that are among the best on the market, as well as a fibreglass facade with low heat-conducting properties.

Closer to the end user

From 2009 onwards, we have also had production facilities in China in order to better service the global wind power sector and to be closer to our end users. This reduces the distance between us and our end users and cuts down the level of transport needed in between.

Our entire business is based around making glass and carbon fibre profiles for an energy-efficient society. This allows us to help do our bit to resolve global climate challenges.

The energy-efficient material of tomorrow

With consideration to the unique technical properties of the materials used in our products, our primary focus is to assist our customers within the wind power industry in creating good and efficient green energy. Here our profiles are used in the wind turbine industry where there is a need for strong, lightweight and durable materials.

Low operating costs

If you look at the total life-cycle costs of a completed solution, our profiles are often the most cost-effective choice. Our profiles are exceptionally durable and have minimal to zero maintenance requirements, which means that the costs and resources needed for their operation, maintenance and cleaning are comparatively low. Moreover, these technical properties also mean that the products last longer.


Fibreglass composites are recycled as part of a technical and circular process in which the composite is used as a raw material and substitute fuel in the production of cement. Fibreglass composite is used 30% as energy and 70% as raw material in cement production. Granulating fibreglass composite and using it in the production of cement can supplant the use of fossil fuels and virgin raw materials at cement plants.

Optimisation of resources

Surplus glass and carbon fibre materials from our production lines are collected together and sent to our partner, where they are used as supplementary materials in moulded fibreglass solutions. In this way we are able to optimise our use of resources even further.