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Home > Products & Services > Products by Market > Wind Energy Products > Infusion Blade Products > Structural Core

Gurit Structural Core Products

Structural Core for Infusion Blades

As the wind energy market has matured the optimisation of blade design has become critical as blade lengths and weights have increased. As a consequence, the one core fits all approach is no longer relevant for a modern wind turbine blade.

Structural core is used in both the structural shell and shear webs of a standard infusion blade design. The material requirements for a structural core can vary considerably from shell to shear web and also from one area of a shell to another. Therefore, to optimize the design, weight and performance of a blade, the blade designer may make use of a number of core products.

In response to the demand for multiple core designs, Gurit has recently extended its product range and now covers PVC, PET, Balsa and SAN core types all with a distinct range of properties and attributes.

Balsaflex® is the classic end-grain balsa wood core, featuring very high strength to weight ratio. Balsaflex® is available in range of densities, thickness and format/finish. Balsaflex® is approved by Germanischer Lloyd (GL).




  • Balsaflex® - Balsa Wood Core Material (v3)
    Balsaflex® is a typical density balsa wood core material. When an application requires high strength, stiffness and cost effectiveness, Balsaflex® is a suitable solution due to a good balance between cost, properties and weight.
  • Corecell™ K-Foam – Structural Foam Core (v7)
    Corecell™ K-Foam is a development of Corecell™ T-Foam with higher temperature stability for processing under vacuum. It shares Corecell™ T-Foam’s exceptional balance of toughness and stiffness.
  • Corecell™ T300 Structural Foam Core (v3)
    Corecell™ T300 is a structural Foam Core which is suitable for all PVC core applications. It has excellent mechanical properties with outstanding chemical resistance which is ideal for resin infusion
  • Corecell™ T-Foam – Structural Foam Core (v8)
    Corecell™ T-Foam has been developed as a technological step-change from traditional PVC and Balsa structural core. It has slightly higher stiffness properties and even greater styrene resistance than the more ductile Corecell™ A-Foam. Supplied in following grades/densities: T400, T500, T550, T600, T800
  • G-PET - Recyclable Structural Foam (v7)
    Highly adaptable, recyclable, thermoplastic foam with good balance of mechanical properties, temperature resistance, density and cost for a wide range of applications and production processes.
  • PVCell® G-Foam - Structural Foam Core (v9)WE
    PVCell® G-Foam is a closed cell, crosslinked PVC foam.


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