Wind
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Decreasing the core cost in wind energy Sustainable, innovative core materials, finishing, kits, technical services and consultancy

Supporting you to be successful in reducing the LCoE Diab, Divinycell, Matrix and ProBalsa are registered trademarks in countries all over the world.

The global energy market increasingly looks to renewable sources to fulfill rising demand. Horizontal Axis Wind Turbines have become more efficient, achieving grid parity in many locations. With blades and nacelles increasing in size, manufacturers look to reduce weight through advanced composite designs. Resin, fiber and core are the three primary materials used in composites. Diab is focused on providing expertise in core.

Diab – complete solutions for the wind industry Diab is a world leader in advanced sandwich composite solutions with extensive experience from working with the wind industry. We provide core materials, finishing and pre-cut kits specifically tailored to each application. In addition to our high-performance products, we support your efforts with technical expertise, structural engineering services and applications training. To further ensure you reach optimal results, our offer also includes our unique Diab Core infusion process.

With decades of experience in wind applications, Diab probably has the highest competence level in the industry. Through the years, we have gained invaluable insight into your unique products and processes, which enables us to develop solutions adapted to your specific needs. From our work with all major turbine manufacturers, there are now approaching 1/2 million Diab cored blades in service around the world. We have positioned ourselves to serve our customers locally while offering all the benefits of working with a global company. With eight manufacturing plants in strategic locations...

Diab core materials Diab provides a wide range of materials suitable for the wind industry – available in plain sheets with a variety of finishes and pre-cut kits. All of our materials are good environmental choices with high performance over time. IPN foams The unique composition of our IPN foams yields impressive mechanical performance to a very low weight. Divinycell H provides excellent mechanical properties Divinycell Matrix is an all-purpose grade with high and low weight. It has a proven track record in virtually strength-to-weight ratio. High mechanical properties every application...

PET foams All our PET foams have excellent thermal stability and impressive physical properties. Divinycell PN is a structurally strong PET sandwich core material perfectly suited in a variety of applications in the wind energy segment, its excellent mechanical properties and good processing characteristics make it highly suitable for both blades and nacelles. PN200 Balsa Balsa materials are particularly easy to work using conventional woodworking tools. They can be drilled, milled, turned and sawn to close tolerances. and PN250 has been added to the PN range to meet the increasing demand...

Optimized finishing for perfect production Composite structures are typically not flat so core materials need to be shaped or have sufficient conformability to match the part shape. Finishing refers to the possibility to shape and design structural core materials to suit application needs, whether related to processing, design, weight or surface finishing, for instance. Save time, money and resources Plain sheets: where finishing starts Selecting the optimal finishing has a distinct and profound impact on your application’s success – directly influencing weight, cost and quality. Diab helps...

For more information, please see the Diab Finishing brochure at diabgroup.com or contact us for a printed copy. Resin distribution options: ensuring wet-out Perforations (PFC) To avoid having air trapped between the core and the laminate, small perforations or grooves are often added symmetrically to the core. This technique is commonly used when doing hand lay-up, vacuum bagging or when using core bedding adhesives. In an infusion process, the perforations will transfer resin from one side to the other, ensuring both sides are wetted out and avoiding trapped air as well. Many different...

Kits to boost your production performance All of our materials can be delivered in kits, tailored to your specific process. A kit consists of pre-cut parts that are shaped as necessary and then numbered to fit exactly into their designated places in the mold. Save time, labor and cost By eliminating the on-site shaping and cutting of flat sheets, you can reduce build times and save labor and material cost. In addition, with the easy assembly and exact fit, you can achieve a consistently high quality in less time. Getting your material delivered in a kit helps you: • • • • • Boost...

Diab core infusion When manufacturing a wind application part, the end result is highly dependent on the process you use. We have developed Diab Core infusion to ensure our customers reach optimal results. With the Diab core infusion a perfect wet-out of the laminates is achieved by using grooves, cuts and perforations in the core. By eliminating the requirement for sacrificial distribution mats or nets, the cost of consumables, waste and labor time is significantly reduced. Improved effiency and lower total cost World-leading in core infusion Our core infusion process can cut mold cycle...

Complete composite engineering services Diab's integrated range of solutions and services can serve you in every part of the composite design and manufacturing process. Many of our customers take advantage of our engineering expertise to ensure each element fits together for optimal performance. COMPOSITES CONSULTING GROUP Technical services Diab Technical services partner up with you to help you maximize the benefits provided by the Diab sandwich concept, We have a deep knowledge about sandwich design, finishing and kits and our skills cover everything from hand lay-up to resin infusion,...