Balsaflex
Sustainable and naturally strong.
Premium end-grain balsa wood core for wind, marine and industrial applications
Gurit Balsaflex is a premium end-grain balsa wood core material for high quality composite structures. With its exceptional shear and compressive strength and renewable origin, Balsaflex is the trusted natural core solution for applications across multiple industry sectors, and is widely used in wind turbine blades and nacelles.
Offering a good balance between cost, properties and weight, Gurit Balsaflex offers the mechanical properties required for long blade lifecycles, while supporting responsible forest management and traceable sourcing.
Key Benefits of Balsaflex
High Mechanical Properties
Delivers outstanding stiffness and compressive performance
Sustainably manufactured in compliance with the EUTR regulation
Following Gurit’s Responsible Sourcing Policy
Low Resin Absorption
Balsaflex Coated helps to control resin uptake
Global Manufacturing
Produced at ISO 9001:2015 certified facilities in Ecuador and China
Processing and Compliance
- Balsaflex is suitable for wet laminating, vacuum bagging or infusion processing.
- Available as a pre-cut kit or sheets in various formats including uncoated or coated for controlling resin uptake, with perforations or grooves to aid infusion, and either rigid or flexible for complex geometry.
- Compliance with DNV-SE-0441:2021-10 Type and Component Certification of Wind Turbines.
- Gurit Balsaflex production sites are certified to ISO 9001:2015 Quality Management System.
Available Densities and Dimensions
Grade
Nominal Density
Sheet Size
Thickness*
Additional Info
Balsaflex 110
110 kg/m3
610 x 1220 mm
6 – 50 mm
Lightweight, high workability
Balsaflex 150
155 kg/m3
610 x 1220 mm
6 – 50 mm
Standard grade for most wind applications (DNV approved)
Balsaflex 250
250 kg/m3
610 x 1220 mm
6 – 50 mm
High-density grades for maximum stiffness
Balsaflex Coated is a surface-coated variant that reduces resin uptake while maintaining mechanical performance.
*Thickness values provided are for flexible format (contour scrim). More thickness options are available for rigid panels (plain sheet).
Typical Applications
Wind turbine blades
Marine hulls, decks and internal structures
Transportation and general industrial components
Sustainability & Responsible Sourcing
Gurit Balsaflex is produced under a robust Responsible Sourcing Policy that ensures all balsa wood originates from legal, well-managed forests.
Our sourcing program includes:
- Commitment to environmental and social responsibility
- Avoidance of forced or child labor and discrimination
- Ongoing supplier risk assessment and mitigation
- Provision of a safe and healthy work environment
- Consultation process when working within indigenous communities
- Transparent due diligence system with full traceability
Balsaflex production supports sustainable forestry practices in Ecuador, promoting local employment and forest preservation. Gurit empowers and supports smaller farmers with training and knowledge of profitable and sustainable forest management, providing them with a livelihood and preventing them from needing to harvest from native forests.
The Natural Core Choice
For more than two decades, Gurit Balsaflex has set the benchmark for balsa core performance, particularly in the wind sector. Combining sustainable sourcing, outstanding mechanical properties and global supply capability, it is the natural choice for the wind energy industry.
Downloads
Product Brochures
Processing Guides
Datasheets
Gurit Standard Finishes
Get in touch with us to learn more about Gurit and how our solutions can work for you.
© Gurit Services AG, Zurich (CH)
